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| @ -1,36 +0,0 @@ | |||||||
| From a707eff49800045d07afbcd8a74617c50b960151 Mon Sep 17 00:00:00 2001 |  | ||||||
| From: German Maglione <gmaglione@redhat.com> |  | ||||||
| Date: Thu, 10 Oct 2024 13:23:25 +0200 |  | ||||||
| Subject: [PATCH] Fix thread-pool-size default value in the man page |  | ||||||
| 
 |  | ||||||
| RH-Author: German Maglione <None> |  | ||||||
| RH-MergeRequest: 417: Fix thread-pool-size default value in the man page |  | ||||||
| RH-Jira: RHEL-26197 |  | ||||||
| RH-Acked-by: Hanna Czenczek <hreitz@redhat.com> |  | ||||||
| RH-Acked-by: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| RH-Commit: [1/1] bdf22ed4600ac7f02a4b08c54f162b1f89c44a99 |  | ||||||
| 
 |  | ||||||
| The current --thread-pool-size default value is 0, let's reflect it |  | ||||||
| in the man page. |  | ||||||
| 
 |  | ||||||
| Signed-off-by: German Maglione <gmaglione@redhat.com> |  | ||||||
| ---
 |  | ||||||
|  docs/tools/virtiofsd.rst | 2 +- |  | ||||||
|  1 file changed, 1 insertion(+), 1 deletion(-) |  | ||||||
| 
 |  | ||||||
| diff --git a/docs/tools/virtiofsd.rst b/docs/tools/virtiofsd.rst
 |  | ||||||
| index 07ac0be551..fb3d59c449 100644
 |  | ||||||
| --- a/docs/tools/virtiofsd.rst
 |  | ||||||
| +++ b/docs/tools/virtiofsd.rst
 |  | ||||||
| @@ -120,7 +120,7 @@ Options
 |  | ||||||
|  .. option:: --thread-pool-size=NUM |  | ||||||
|   |  | ||||||
|    Restrict the number of worker threads per request queue to NUM.  The default |  | ||||||
| -  is 64.
 |  | ||||||
| +  is 0.
 |  | ||||||
|   |  | ||||||
|  .. option:: --cache=none|auto|always |  | ||||||
|   |  | ||||||
| -- 
 |  | ||||||
| 2.45.2 |  | ||||||
| 
 |  | ||||||
| @ -1,260 +0,0 @@ | |||||||
| From c4ba1f1755031a0ac2f600ed8c17e7dcb6b2b857 Mon Sep 17 00:00:00 2001 |  | ||||||
| From: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| Date: Wed, 5 Jun 2024 19:56:51 -0400 |  | ||||||
| Subject: [PATCH 5/5] block: Parse filenames only when explicitly requested |  | ||||||
| 
 |  | ||||||
| RH-Author: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| RH-MergeRequest: 5: EMBARGOED CVE-2024-4467 for rhel-8.10.z (PRDSC) |  | ||||||
| RH-Jira: RHEL-35616 |  | ||||||
| RH-CVE: CVE-2024-4467 |  | ||||||
| RH-Acked-by: Kevin Wolf <kwolf@redhat.com> |  | ||||||
| RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com> |  | ||||||
| RH-Commit: [5/5] a3e197add64fc6950c4ac576e34d833dfae7ee34 |  | ||||||
| 
 |  | ||||||
| Conflicts: - brdv_open_child_common(): bdrv_graph_wrlock/unlock() |  | ||||||
|              don't exist in this code version. We ignore them. |  | ||||||
| 	     bdrv_open_inherit(): no_coroutine_fn/GRAPH_UNLOCKED |  | ||||||
|              doesn't exist. We ignore it. |  | ||||||
|            - Changes to bdrv_open_file_child() didn't apply cleanly, |  | ||||||
|              but fixing it is straight-forward. |  | ||||||
|            - GLOBAL_STATE_CODE() not present in this code. Ignoring it. |  | ||||||
|            - bdrv_open_file_child(): Need to continue setting of |  | ||||||
| 	     parent->file. |  | ||||||
| 
 |  | ||||||
| commit f44c2941d4419e60f16dea3e9adca164e75aa78d |  | ||||||
| Author: Kevin Wolf <kwolf@redhat.com> |  | ||||||
| Date:   Thu Apr 25 14:56:02 2024 +0200 |  | ||||||
| 
 |  | ||||||
|     block: Parse filenames only when explicitly requested |  | ||||||
| 
 |  | ||||||
|     When handling image filenames from legacy options such as -drive or from |  | ||||||
|     tools, these filenames are parsed for protocol prefixes, including for |  | ||||||
|     the json:{} pseudo-protocol. |  | ||||||
| 
 |  | ||||||
|     This behaviour is intended for filenames that come directly from the |  | ||||||
|     command line and for backing files, which may come from the image file |  | ||||||
|     itself. Higher level management tools generally take care to verify that |  | ||||||
|     untrusted images don't contain a bad (or any) backing file reference; |  | ||||||
|     'qemu-img info' is a suitable tool for this. |  | ||||||
| 
 |  | ||||||
|     However, for other files that can be referenced in images, such as |  | ||||||
|     qcow2 data files or VMDK extents, the string from the image file is |  | ||||||
|     usually not verified by management tools - and 'qemu-img info' wouldn't |  | ||||||
|     be suitable because in contrast to backing files, it already opens these |  | ||||||
|     other referenced files. So here the string should be interpreted as a |  | ||||||
|     literal local filename. More complex configurations need to be specified |  | ||||||
|     explicitly on the command line or in QMP. |  | ||||||
| 
 |  | ||||||
|     This patch changes bdrv_open_inherit() so that it only parses filenames |  | ||||||
|     if a new parameter parse_filename is true. It is set for the top level |  | ||||||
|     in bdrv_open(), for the file child and for the backing file child. All |  | ||||||
|     other callers pass false and disable filename parsing this way. |  | ||||||
| 
 |  | ||||||
|     Signed-off-by: Kevin Wolf <kwolf@redhat.com> |  | ||||||
|     Reviewed-by: Eric Blake <eblake@redhat.com> |  | ||||||
|     Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> |  | ||||||
|     Reviewed-by: Hanna Czenczek <hreitz@redhat.com> |  | ||||||
|     Upstream: N/A, embargoed |  | ||||||
|     Signed-off-by: Hanna Czenczek <hreitz@redhat.com> |  | ||||||
| 
 |  | ||||||
| Signed-off-by: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| ---
 |  | ||||||
|  block.c | 81 +++++++++++++++++++++++++++++++++++++++------------------ |  | ||||||
|  1 file changed, 56 insertions(+), 25 deletions(-) |  | ||||||
| 
 |  | ||||||
| diff --git a/block.c b/block.c
 |  | ||||||
| index 889f878565..ddebf50efa 100644
 |  | ||||||
| --- a/block.c
 |  | ||||||
| +++ b/block.c
 |  | ||||||
| @@ -82,6 +82,7 @@ static BlockDriverState *bdrv_open_inherit(const char *filename,
 |  | ||||||
|                                             BlockDriverState *parent, |  | ||||||
|                                             const BdrvChildClass *child_class, |  | ||||||
|                                             BdrvChildRole child_role, |  | ||||||
| +                                           bool parse_filename,
 |  | ||||||
|                                             Error **errp); |  | ||||||
|   |  | ||||||
|  static bool bdrv_recurse_has_child(BlockDriverState *bs, |  | ||||||
| @@ -1926,7 +1927,8 @@ static void parse_json_protocol(QDict *options, const char **pfilename,
 |  | ||||||
|   * block driver has been specified explicitly. |  | ||||||
|   */ |  | ||||||
|  static int bdrv_fill_options(QDict **options, const char *filename, |  | ||||||
| -                             int *flags, Error **errp)
 |  | ||||||
| +                             int *flags, bool allow_parse_filename,
 |  | ||||||
| +                             Error **errp)
 |  | ||||||
|  { |  | ||||||
|      const char *drvname; |  | ||||||
|      bool protocol = *flags & BDRV_O_PROTOCOL; |  | ||||||
| @@ -1966,7 +1968,7 @@ static int bdrv_fill_options(QDict **options, const char *filename,
 |  | ||||||
|      if (protocol && filename) { |  | ||||||
|          if (!qdict_haskey(*options, "filename")) { |  | ||||||
|              qdict_put_str(*options, "filename", filename); |  | ||||||
| -            parse_filename = true;
 |  | ||||||
| +            parse_filename = allow_parse_filename;
 |  | ||||||
|          } else { |  | ||||||
|              error_setg(errp, "Can't specify 'file' and 'filename' options at " |  | ||||||
|                               "the same time"); |  | ||||||
| @@ -3439,7 +3441,8 @@ int bdrv_open_backing_file(BlockDriverState *bs, QDict *parent_options,
 |  | ||||||
|      } |  | ||||||
|   |  | ||||||
|      backing_hd = bdrv_open_inherit(backing_filename, reference, options, 0, bs, |  | ||||||
| -                                   &child_of_bds, bdrv_backing_role(bs), errp);
 |  | ||||||
| +                                   &child_of_bds, bdrv_backing_role(bs), true,
 |  | ||||||
| +                                   errp);
 |  | ||||||
|      if (!backing_hd) { |  | ||||||
|          bs->open_flags |= BDRV_O_NO_BACKING; |  | ||||||
|          error_prepend(errp, "Could not open backing file: "); |  | ||||||
| @@ -3472,7 +3475,8 @@ free_exit:
 |  | ||||||
|  static BlockDriverState * |  | ||||||
|  bdrv_open_child_bs(const char *filename, QDict *options, const char *bdref_key, |  | ||||||
|                     BlockDriverState *parent, const BdrvChildClass *child_class, |  | ||||||
| -                   BdrvChildRole child_role, bool allow_none, Error **errp)
 |  | ||||||
| +                   BdrvChildRole child_role, bool allow_none,
 |  | ||||||
| +                   bool parse_filename, Error **errp)
 |  | ||||||
|  { |  | ||||||
|      BlockDriverState *bs = NULL; |  | ||||||
|      QDict *image_options; |  | ||||||
| @@ -3503,7 +3507,8 @@ bdrv_open_child_bs(const char *filename, QDict *options, const char *bdref_key,
 |  | ||||||
|      } |  | ||||||
|   |  | ||||||
|      bs = bdrv_open_inherit(filename, reference, image_options, 0, |  | ||||||
| -                           parent, child_class, child_role, errp);
 |  | ||||||
| +                           parent, child_class, child_role, parse_filename,
 |  | ||||||
| +                           errp);
 |  | ||||||
|      if (!bs) { |  | ||||||
|          goto done; |  | ||||||
|      } |  | ||||||
| @@ -3513,6 +3518,29 @@ done:
 |  | ||||||
|      return bs; |  | ||||||
|  } |  | ||||||
|   |  | ||||||
| +static BdrvChild *bdrv_open_child_common(const char *filename,
 |  | ||||||
| +                                         QDict *options, const char *bdref_key,
 |  | ||||||
| +                                         BlockDriverState *parent,
 |  | ||||||
| +                                         const BdrvChildClass *child_class,
 |  | ||||||
| +                                         BdrvChildRole child_role,
 |  | ||||||
| +                                         bool allow_none, bool parse_filename,
 |  | ||||||
| +                                         Error **errp)
 |  | ||||||
| +{
 |  | ||||||
| +    BlockDriverState *bs;
 |  | ||||||
| +    BdrvChild *child;
 |  | ||||||
| +
 |  | ||||||
| +    bs = bdrv_open_child_bs(filename, options, bdref_key, parent, child_class,
 |  | ||||||
| +                            child_role, allow_none, parse_filename, errp);
 |  | ||||||
| +    if (bs == NULL) {
 |  | ||||||
| +        return NULL;
 |  | ||||||
| +    }
 |  | ||||||
| +
 |  | ||||||
| +    child = bdrv_attach_child(parent, bs, bdref_key, child_class, child_role,
 |  | ||||||
| +                              errp);
 |  | ||||||
| +
 |  | ||||||
| +    return child;
 |  | ||||||
| +}
 |  | ||||||
| +
 |  | ||||||
|  /* |  | ||||||
|   * Opens a disk image whose options are given as BlockdevRef in another block |  | ||||||
|   * device's options. |  | ||||||
| @@ -3534,20 +3562,17 @@ BdrvChild *bdrv_open_child(const char *filename,
 |  | ||||||
|                             BdrvChildRole child_role, |  | ||||||
|                             bool allow_none, Error **errp) |  | ||||||
|  { |  | ||||||
| -    BlockDriverState *bs;
 |  | ||||||
| -
 |  | ||||||
| -    bs = bdrv_open_child_bs(filename, options, bdref_key, parent, child_class,
 |  | ||||||
| -                            child_role, allow_none, errp);
 |  | ||||||
| -    if (bs == NULL) {
 |  | ||||||
| -        return NULL;
 |  | ||||||
| -    }
 |  | ||||||
| -
 |  | ||||||
| -    return bdrv_attach_child(parent, bs, bdref_key, child_class, child_role,
 |  | ||||||
| -                             errp);
 |  | ||||||
| +    return bdrv_open_child_common(filename, options, bdref_key, parent,
 |  | ||||||
| +                                  child_class, child_role, allow_none, false,
 |  | ||||||
| +                                  errp);
 |  | ||||||
|  } |  | ||||||
|   |  | ||||||
|  /* |  | ||||||
| - * Wrapper on bdrv_open_child() for most popular case: open primary child of bs.
 |  | ||||||
| + * This does mostly the same as bdrv_open_child(), but for opening the primary
 |  | ||||||
| + * child of a node. A notable difference from bdrv_open_child() is that it
 |  | ||||||
| + * enables filename parsing for protocol names (including json:).
 |  | ||||||
| + *
 |  | ||||||
| + * @parent can move to a different AioContext in this function.
 |  | ||||||
|   */ |  | ||||||
|  int bdrv_open_file_child(const char *filename, |  | ||||||
|                           QDict *options, const char *bdref_key, |  | ||||||
| @@ -3558,8 +3583,9 @@ int bdrv_open_file_child(const char *filename,
 |  | ||||||
|      role = parent->drv->is_filter ? |  | ||||||
|          (BDRV_CHILD_FILTERED | BDRV_CHILD_PRIMARY) : BDRV_CHILD_IMAGE; |  | ||||||
|   |  | ||||||
| -    parent->file = bdrv_open_child(filename, options, bdref_key, parent,
 |  | ||||||
| -                                   &child_of_bds, role, false, errp);
 |  | ||||||
| +    parent->file = bdrv_open_child_common(filename, options, bdref_key, parent,
 |  | ||||||
| +                                          &child_of_bds, role, false, true,
 |  | ||||||
| +                                          errp);
 |  | ||||||
|   |  | ||||||
|      return parent->file ? 0 : -EINVAL; |  | ||||||
|  } |  | ||||||
| @@ -3599,7 +3625,8 @@ BlockDriverState *bdrv_open_blockdev_ref(BlockdevRef *ref, Error **errp)
 |  | ||||||
|   |  | ||||||
|      } |  | ||||||
|   |  | ||||||
| -    bs = bdrv_open_inherit(NULL, reference, qdict, 0, NULL, NULL, 0, errp);
 |  | ||||||
| +    bs = bdrv_open_inherit(NULL, reference, qdict, 0, NULL, NULL, 0, false,
 |  | ||||||
| +                           errp);
 |  | ||||||
|      obj = NULL; |  | ||||||
|      qobject_unref(obj); |  | ||||||
|      visit_free(v); |  | ||||||
| @@ -3690,6 +3717,7 @@ static BlockDriverState *bdrv_open_inherit(const char *filename,
 |  | ||||||
|                                             BlockDriverState *parent, |  | ||||||
|                                             const BdrvChildClass *child_class, |  | ||||||
|                                             BdrvChildRole child_role, |  | ||||||
| +                                           bool parse_filename,
 |  | ||||||
|                                             Error **errp) |  | ||||||
|  { |  | ||||||
|      int ret; |  | ||||||
| @@ -3733,9 +3761,11 @@ static BlockDriverState *bdrv_open_inherit(const char *filename,
 |  | ||||||
|      } |  | ||||||
|   |  | ||||||
|      /* json: syntax counts as explicit options, as if in the QDict */ |  | ||||||
| -    parse_json_protocol(options, &filename, &local_err);
 |  | ||||||
| -    if (local_err) {
 |  | ||||||
| -        goto fail;
 |  | ||||||
| +    if (parse_filename) {
 |  | ||||||
| +        parse_json_protocol(options, &filename, &local_err);
 |  | ||||||
| +        if (local_err) {
 |  | ||||||
| +            goto fail;
 |  | ||||||
| +        }
 |  | ||||||
|      } |  | ||||||
|   |  | ||||||
|      bs->explicit_options = qdict_clone_shallow(options); |  | ||||||
| @@ -3760,7 +3790,8 @@ static BlockDriverState *bdrv_open_inherit(const char *filename,
 |  | ||||||
|                                       parent->open_flags, parent->options); |  | ||||||
|      } |  | ||||||
|   |  | ||||||
| -    ret = bdrv_fill_options(&options, filename, &flags, &local_err);
 |  | ||||||
| +    ret = bdrv_fill_options(&options, filename, &flags, parse_filename,
 |  | ||||||
| +                            &local_err);
 |  | ||||||
|      if (ret < 0) { |  | ||||||
|          goto fail; |  | ||||||
|      } |  | ||||||
| @@ -3829,7 +3860,7 @@ static BlockDriverState *bdrv_open_inherit(const char *filename,
 |  | ||||||
|   |  | ||||||
|          file_bs = bdrv_open_child_bs(filename, options, "file", bs, |  | ||||||
|                                       &child_of_bds, BDRV_CHILD_IMAGE, |  | ||||||
| -                                     true, &local_err);
 |  | ||||||
| +                                     true, true, &local_err);
 |  | ||||||
|          if (local_err) { |  | ||||||
|              goto fail; |  | ||||||
|          } |  | ||||||
| @@ -3974,7 +4005,7 @@ BlockDriverState *bdrv_open(const char *filename, const char *reference,
 |  | ||||||
|                              QDict *options, int flags, Error **errp) |  | ||||||
|  { |  | ||||||
|      return bdrv_open_inherit(filename, reference, options, flags, NULL, |  | ||||||
| -                             NULL, 0, errp);
 |  | ||||||
| +                             NULL, 0, true, errp);
 |  | ||||||
|  } |  | ||||||
|   |  | ||||||
|  /* Return true if the NULL-terminated @list contains @str */ |  | ||||||
| -- 
 |  | ||||||
| 2.39.3 |  | ||||||
| 
 |  | ||||||
| @ -1,566 +0,0 @@ | |||||||
| From 996680dd6d5afd51918e600126dbfed4dfe89e05 Mon Sep 17 00:00:00 2001 |  | ||||||
| From: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| Date: Sun, 9 Jun 2024 23:08:39 -0400 |  | ||||||
| Subject: [PATCH 4/5] block: introduce bdrv_open_file_child() helper |  | ||||||
| 
 |  | ||||||
| RH-Author: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| RH-MergeRequest: 5: EMBARGOED CVE-2024-4467 for rhel-8.10.z (PRDSC) |  | ||||||
| RH-Jira: RHEL-35616 |  | ||||||
| RH-CVE: CVE-2024-4467 |  | ||||||
| RH-Acked-by: Kevin Wolf <kwolf@redhat.com> |  | ||||||
| RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com> |  | ||||||
| RH-Commit: [4/5] 9f582a9aff740eb9ec6f64bfec94854038d8545f |  | ||||||
| 
 |  | ||||||
| Conflicts: - copy-before-write.c::cbw_copy() is an older version than |  | ||||||
|              upstream, but introduction of the new function is |  | ||||||
| 	     straight-forward. |  | ||||||
|            - include/block/block-global-state.h doesn't exist in this |  | ||||||
|              code version. Adding the prototype to |  | ||||||
|              include/block/block.h instead. |  | ||||||
|            - struct BlockDriver has no field 'filtered_child_is_backing' |  | ||||||
|              We remove the corresponding assert() in the new function. |  | ||||||
| 
 |  | ||||||
| commit 83930780325b144a5908c45b3957b9b6457b3831 |  | ||||||
| Author: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru> |  | ||||||
| Date:   Tue Jul 26 23:11:21 2022 +0300 |  | ||||||
| 
 |  | ||||||
|     block: introduce bdrv_open_file_child() helper |  | ||||||
| 
 |  | ||||||
|     Almost all drivers call bdrv_open_child() similarly. Let's create a |  | ||||||
|     helper for this. |  | ||||||
| 
 |  | ||||||
|     The only not updated drivers that call bdrv_open_child() to set |  | ||||||
|     bs->file are raw-format and snapshot-access: |  | ||||||
|         raw-format sometimes want to have filtered child but |  | ||||||
|             don't set drv->is_filter to true. |  | ||||||
|         snapshot-access wants only DATA | PRIMARY |  | ||||||
| 
 |  | ||||||
|     Possibly we should implement drv->is_filter_func() handler, to consider |  | ||||||
|     raw-format as filter when it works as filter.. But it's another story. |  | ||||||
| 
 |  | ||||||
|     Note also, that we decrease assignments to bs->file in code: it helps |  | ||||||
|     us restrict modifying this field in further commit. |  | ||||||
| 
 |  | ||||||
|     Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru> |  | ||||||
|     Reviewed-by: Hanna Reitz <hreitz@redhat.com> |  | ||||||
|     Message-Id: <20220726201134.924743-3-vsementsov@yandex-team.ru> |  | ||||||
|     Reviewed-by: Kevin Wolf <kwolf@redhat.com> |  | ||||||
|     Signed-off-by: Kevin Wolf <kwolf@redhat.com> |  | ||||||
| 
 |  | ||||||
| Signed-off-by: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| ---
 |  | ||||||
|  block.c                   | 18 ++++++++++++++++++ |  | ||||||
|  block/blkdebug.c          |  9 +++------ |  | ||||||
|  block/blklogwrites.c      |  7 ++----- |  | ||||||
|  block/blkreplay.c         |  7 ++----- |  | ||||||
|  block/blkverify.c         |  9 +++------ |  | ||||||
|  block/bochs.c             |  7 +++---- |  | ||||||
|  block/cloop.c             |  7 +++---- |  | ||||||
|  block/copy-before-write.c |  9 ++++----- |  | ||||||
|  block/copy-on-read.c      |  9 ++++----- |  | ||||||
|  block/crypto.c            | 11 ++++++----- |  | ||||||
|  block/dmg.c               |  7 +++---- |  | ||||||
|  block/filter-compress.c   |  8 +++----- |  | ||||||
|  block/parallels.c         |  7 +++---- |  | ||||||
|  block/preallocate.c       |  9 ++++----- |  | ||||||
|  block/qcow.c              |  6 ++---- |  | ||||||
|  block/qcow2.c             |  8 ++++---- |  | ||||||
|  block/qed.c               |  8 ++++---- |  | ||||||
|  block/replication.c       |  8 +++----- |  | ||||||
|  block/throttle.c          |  8 +++----- |  | ||||||
|  block/vdi.c               |  7 +++---- |  | ||||||
|  block/vhdx.c              |  7 +++---- |  | ||||||
|  block/vmdk.c              |  7 +++---- |  | ||||||
|  block/vpc.c               |  7 +++---- |  | ||||||
|  include/block/block.h     |  3 +++ |  | ||||||
|  24 files changed, 92 insertions(+), 101 deletions(-) |  | ||||||
| 
 |  | ||||||
| diff --git a/block.c b/block.c
 |  | ||||||
| index 0ac5b163d2..889f878565 100644
 |  | ||||||
| --- a/block.c
 |  | ||||||
| +++ b/block.c
 |  | ||||||
| @@ -3546,6 +3546,24 @@ BdrvChild *bdrv_open_child(const char *filename,
 |  | ||||||
|                               errp); |  | ||||||
|  } |  | ||||||
|   |  | ||||||
| +/*
 |  | ||||||
| + * Wrapper on bdrv_open_child() for most popular case: open primary child of bs.
 |  | ||||||
| + */
 |  | ||||||
| +int bdrv_open_file_child(const char *filename,
 |  | ||||||
| +                         QDict *options, const char *bdref_key,
 |  | ||||||
| +                         BlockDriverState *parent, Error **errp)
 |  | ||||||
| +{
 |  | ||||||
| +    BdrvChildRole role;
 |  | ||||||
| +
 |  | ||||||
| +    role = parent->drv->is_filter ?
 |  | ||||||
| +        (BDRV_CHILD_FILTERED | BDRV_CHILD_PRIMARY) : BDRV_CHILD_IMAGE;
 |  | ||||||
| +
 |  | ||||||
| +    parent->file = bdrv_open_child(filename, options, bdref_key, parent,
 |  | ||||||
| +                                   &child_of_bds, role, false, errp);
 |  | ||||||
| +
 |  | ||||||
| +    return parent->file ? 0 : -EINVAL;
 |  | ||||||
| +}
 |  | ||||||
| +
 |  | ||||||
|  /* |  | ||||||
|   * TODO Future callers may need to specify parent/child_class in order for |  | ||||||
|   * option inheritance to work. Existing callers use it for the root node. |  | ||||||
| diff --git a/block/blkdebug.c b/block/blkdebug.c
 |  | ||||||
| index bbf2948703..5fcfc8ac6f 100644
 |  | ||||||
| --- a/block/blkdebug.c
 |  | ||||||
| +++ b/block/blkdebug.c
 |  | ||||||
| @@ -503,12 +503,9 @@ static int blkdebug_open(BlockDriverState *bs, QDict *options, int flags,
 |  | ||||||
|      } |  | ||||||
|   |  | ||||||
|      /* Open the image file */ |  | ||||||
| -    bs->file = bdrv_open_child(qemu_opt_get(opts, "x-image"), options, "image",
 |  | ||||||
| -                               bs, &child_of_bds,
 |  | ||||||
| -                               BDRV_CHILD_FILTERED | BDRV_CHILD_PRIMARY,
 |  | ||||||
| -                               false, errp);
 |  | ||||||
| -    if (!bs->file) {
 |  | ||||||
| -        ret = -EINVAL;
 |  | ||||||
| +    ret = bdrv_open_file_child(qemu_opt_get(opts, "x-image"), options, "image",
 |  | ||||||
| +                               bs, errp);
 |  | ||||||
| +    if (ret < 0) {
 |  | ||||||
|          goto out; |  | ||||||
|      } |  | ||||||
|   |  | ||||||
| diff --git a/block/blklogwrites.c b/block/blklogwrites.c
 |  | ||||||
| index f7a251e91f..f66a617eb3 100644
 |  | ||||||
| --- a/block/blklogwrites.c
 |  | ||||||
| +++ b/block/blklogwrites.c
 |  | ||||||
| @@ -155,11 +155,8 @@ static int blk_log_writes_open(BlockDriverState *bs, QDict *options, int flags,
 |  | ||||||
|      } |  | ||||||
|   |  | ||||||
|      /* Open the file */ |  | ||||||
| -    bs->file = bdrv_open_child(NULL, options, "file", bs, &child_of_bds,
 |  | ||||||
| -                               BDRV_CHILD_FILTERED | BDRV_CHILD_PRIMARY, false,
 |  | ||||||
| -                               errp);
 |  | ||||||
| -    if (!bs->file) {
 |  | ||||||
| -        ret = -EINVAL;
 |  | ||||||
| +    ret = bdrv_open_file_child(NULL, options, "file", bs, errp);
 |  | ||||||
| +    if (ret < 0) {
 |  | ||||||
|          goto fail; |  | ||||||
|      } |  | ||||||
|   |  | ||||||
| diff --git a/block/blkreplay.c b/block/blkreplay.c
 |  | ||||||
| index dcbe780ddb..76a0b8d12a 100644
 |  | ||||||
| --- a/block/blkreplay.c
 |  | ||||||
| +++ b/block/blkreplay.c
 |  | ||||||
| @@ -26,11 +26,8 @@ static int blkreplay_open(BlockDriverState *bs, QDict *options, int flags,
 |  | ||||||
|      int ret; |  | ||||||
|   |  | ||||||
|      /* Open the image file */ |  | ||||||
| -    bs->file = bdrv_open_child(NULL, options, "image", bs, &child_of_bds,
 |  | ||||||
| -                               BDRV_CHILD_FILTERED | BDRV_CHILD_PRIMARY,
 |  | ||||||
| -                               false, errp);
 |  | ||||||
| -    if (!bs->file) {
 |  | ||||||
| -        ret = -EINVAL;
 |  | ||||||
| +    ret = bdrv_open_file_child(NULL, options, "image", bs, errp);
 |  | ||||||
| +    if (ret < 0) {
 |  | ||||||
|          goto fail; |  | ||||||
|      } |  | ||||||
|   |  | ||||||
| diff --git a/block/blkverify.c b/block/blkverify.c
 |  | ||||||
| index d1facf5ba9..920e891684 100644
 |  | ||||||
| --- a/block/blkverify.c
 |  | ||||||
| +++ b/block/blkverify.c
 |  | ||||||
| @@ -121,12 +121,9 @@ static int blkverify_open(BlockDriverState *bs, QDict *options, int flags,
 |  | ||||||
|      } |  | ||||||
|   |  | ||||||
|      /* Open the raw file */ |  | ||||||
| -    bs->file = bdrv_open_child(qemu_opt_get(opts, "x-raw"), options, "raw",
 |  | ||||||
| -                               bs, &child_of_bds,
 |  | ||||||
| -                               BDRV_CHILD_FILTERED | BDRV_CHILD_PRIMARY,
 |  | ||||||
| -                               false, errp);
 |  | ||||||
| -    if (!bs->file) {
 |  | ||||||
| -        ret = -EINVAL;
 |  | ||||||
| +    ret = bdrv_open_file_child(qemu_opt_get(opts, "x-raw"), options, "raw",
 |  | ||||||
| +                               bs, errp);
 |  | ||||||
| +    if (ret < 0) {
 |  | ||||||
|          goto fail; |  | ||||||
|      } |  | ||||||
|   |  | ||||||
| diff --git a/block/bochs.c b/block/bochs.c
 |  | ||||||
| index 4d68658087..b2dc06bbfd 100644
 |  | ||||||
| --- a/block/bochs.c
 |  | ||||||
| +++ b/block/bochs.c
 |  | ||||||
| @@ -110,10 +110,9 @@ static int bochs_open(BlockDriverState *bs, QDict *options, int flags,
 |  | ||||||
|          return ret; |  | ||||||
|      } |  | ||||||
|   |  | ||||||
| -    bs->file = bdrv_open_child(NULL, options, "file", bs, &child_of_bds,
 |  | ||||||
| -                               BDRV_CHILD_IMAGE, false, errp);
 |  | ||||||
| -    if (!bs->file) {
 |  | ||||||
| -        return -EINVAL;
 |  | ||||||
| +    ret = bdrv_open_file_child(NULL, options, "file", bs, errp);
 |  | ||||||
| +    if (ret < 0) {
 |  | ||||||
| +        return ret;
 |  | ||||||
|      } |  | ||||||
|   |  | ||||||
|      ret = bdrv_pread(bs->file, 0, &bochs, sizeof(bochs)); |  | ||||||
| diff --git a/block/cloop.c b/block/cloop.c
 |  | ||||||
| index b8c6d0eccd..bee87da173 100644
 |  | ||||||
| --- a/block/cloop.c
 |  | ||||||
| +++ b/block/cloop.c
 |  | ||||||
| @@ -71,10 +71,9 @@ static int cloop_open(BlockDriverState *bs, QDict *options, int flags,
 |  | ||||||
|          return ret; |  | ||||||
|      } |  | ||||||
|   |  | ||||||
| -    bs->file = bdrv_open_child(NULL, options, "file", bs, &child_of_bds,
 |  | ||||||
| -                               BDRV_CHILD_IMAGE, false, errp);
 |  | ||||||
| -    if (!bs->file) {
 |  | ||||||
| -        return -EINVAL;
 |  | ||||||
| +    ret = bdrv_open_file_child(NULL, options, "file", bs, errp);
 |  | ||||||
| +    if (ret < 0) {
 |  | ||||||
| +        return ret;
 |  | ||||||
|      } |  | ||||||
|   |  | ||||||
|      /* read header */ |  | ||||||
| diff --git a/block/copy-before-write.c b/block/copy-before-write.c
 |  | ||||||
| index c30a5ff8de..8aa2cb6a85 100644
 |  | ||||||
| --- a/block/copy-before-write.c
 |  | ||||||
| +++ b/block/copy-before-write.c
 |  | ||||||
| @@ -150,12 +150,11 @@ static int cbw_open(BlockDriverState *bs, QDict *options, int flags,
 |  | ||||||
|  { |  | ||||||
|      BDRVCopyBeforeWriteState *s = bs->opaque; |  | ||||||
|      BdrvDirtyBitmap *copy_bitmap; |  | ||||||
| +    int ret;
 |  | ||||||
|   |  | ||||||
| -    bs->file = bdrv_open_child(NULL, options, "file", bs, &child_of_bds,
 |  | ||||||
| -                               BDRV_CHILD_FILTERED | BDRV_CHILD_PRIMARY,
 |  | ||||||
| -                               false, errp);
 |  | ||||||
| -    if (!bs->file) {
 |  | ||||||
| -        return -EINVAL;
 |  | ||||||
| +    ret = bdrv_open_file_child(NULL, options, "file", bs, errp);
 |  | ||||||
| +    if (ret < 0) {
 |  | ||||||
| +        return ret;
 |  | ||||||
|      } |  | ||||||
|   |  | ||||||
|      s->target = bdrv_open_child(NULL, options, "target", bs, &child_of_bds, |  | ||||||
| diff --git a/block/copy-on-read.c b/block/copy-on-read.c
 |  | ||||||
| index 1fc7fb3333..815ac1d835 100644
 |  | ||||||
| --- a/block/copy-on-read.c
 |  | ||||||
| +++ b/block/copy-on-read.c
 |  | ||||||
| @@ -41,12 +41,11 @@ static int cor_open(BlockDriverState *bs, QDict *options, int flags,
 |  | ||||||
|      BDRVStateCOR *state = bs->opaque; |  | ||||||
|      /* Find a bottom node name, if any */ |  | ||||||
|      const char *bottom_node = qdict_get_try_str(options, "bottom"); |  | ||||||
| +    int ret;
 |  | ||||||
|   |  | ||||||
| -    bs->file = bdrv_open_child(NULL, options, "file", bs, &child_of_bds,
 |  | ||||||
| -                               BDRV_CHILD_FILTERED | BDRV_CHILD_PRIMARY,
 |  | ||||||
| -                               false, errp);
 |  | ||||||
| -    if (!bs->file) {
 |  | ||||||
| -        return -EINVAL;
 |  | ||||||
| +    ret = bdrv_open_file_child(NULL, options, "file", bs, errp);
 |  | ||||||
| +    if (ret < 0) {
 |  | ||||||
| +        return ret;
 |  | ||||||
|      } |  | ||||||
|   |  | ||||||
|      bs->supported_read_flags = BDRV_REQ_PREFETCH; |  | ||||||
| diff --git a/block/crypto.c b/block/crypto.c
 |  | ||||||
| index c8ba4681e2..abfce39230 100644
 |  | ||||||
| --- a/block/crypto.c
 |  | ||||||
| +++ b/block/crypto.c
 |  | ||||||
| @@ -260,15 +260,14 @@ static int block_crypto_open_generic(QCryptoBlockFormat format,
 |  | ||||||
|  { |  | ||||||
|      BlockCrypto *crypto = bs->opaque; |  | ||||||
|      QemuOpts *opts = NULL; |  | ||||||
| -    int ret = -EINVAL;
 |  | ||||||
| +    int ret;
 |  | ||||||
|      QCryptoBlockOpenOptions *open_opts = NULL; |  | ||||||
|      unsigned int cflags = 0; |  | ||||||
|      QDict *cryptoopts = NULL; |  | ||||||
|   |  | ||||||
| -    bs->file = bdrv_open_child(NULL, options, "file", bs, &child_of_bds,
 |  | ||||||
| -                               BDRV_CHILD_IMAGE, false, errp);
 |  | ||||||
| -    if (!bs->file) {
 |  | ||||||
| -        return -EINVAL;
 |  | ||||||
| +    ret = bdrv_open_file_child(NULL, options, "file", bs, errp);
 |  | ||||||
| +    if (ret < 0) {
 |  | ||||||
| +        return ret;
 |  | ||||||
|      } |  | ||||||
|   |  | ||||||
|      bs->supported_write_flags = BDRV_REQ_FUA & |  | ||||||
| @@ -276,6 +275,7 @@ static int block_crypto_open_generic(QCryptoBlockFormat format,
 |  | ||||||
|   |  | ||||||
|      opts = qemu_opts_create(opts_spec, NULL, 0, &error_abort); |  | ||||||
|      if (!qemu_opts_absorb_qdict(opts, options, errp)) { |  | ||||||
| +        ret = -EINVAL;
 |  | ||||||
|          goto cleanup; |  | ||||||
|      } |  | ||||||
|   |  | ||||||
| @@ -284,6 +284,7 @@ static int block_crypto_open_generic(QCryptoBlockFormat format,
 |  | ||||||
|   |  | ||||||
|      open_opts = block_crypto_open_opts_init(cryptoopts, errp); |  | ||||||
|      if (!open_opts) { |  | ||||||
| +        ret = -EINVAL;
 |  | ||||||
|          goto cleanup; |  | ||||||
|      } |  | ||||||
|   |  | ||||||
| diff --git a/block/dmg.c b/block/dmg.c
 |  | ||||||
| index 447901fbb8..38c363dd39 100644
 |  | ||||||
| --- a/block/dmg.c
 |  | ||||||
| +++ b/block/dmg.c
 |  | ||||||
| @@ -439,10 +439,9 @@ static int dmg_open(BlockDriverState *bs, QDict *options, int flags,
 |  | ||||||
|          return ret; |  | ||||||
|      } |  | ||||||
|   |  | ||||||
| -    bs->file = bdrv_open_child(NULL, options, "file", bs, &child_of_bds,
 |  | ||||||
| -                               BDRV_CHILD_IMAGE, false, errp);
 |  | ||||||
| -    if (!bs->file) {
 |  | ||||||
| -        return -EINVAL;
 |  | ||||||
| +    ret = bdrv_open_file_child(NULL, options, "file", bs, errp);
 |  | ||||||
| +    if (ret < 0) {
 |  | ||||||
| +        return ret;
 |  | ||||||
|      } |  | ||||||
|   |  | ||||||
|      block_module_load_one("dmg-bz2"); |  | ||||||
| diff --git a/block/filter-compress.c b/block/filter-compress.c
 |  | ||||||
| index d5be538619..305716c86c 100644
 |  | ||||||
| --- a/block/filter-compress.c
 |  | ||||||
| +++ b/block/filter-compress.c
 |  | ||||||
| @@ -30,11 +30,9 @@
 |  | ||||||
|  static int compress_open(BlockDriverState *bs, QDict *options, int flags, |  | ||||||
|                           Error **errp) |  | ||||||
|  { |  | ||||||
| -    bs->file = bdrv_open_child(NULL, options, "file", bs, &child_of_bds,
 |  | ||||||
| -                               BDRV_CHILD_FILTERED | BDRV_CHILD_PRIMARY,
 |  | ||||||
| -                               false, errp);
 |  | ||||||
| -    if (!bs->file) {
 |  | ||||||
| -        return -EINVAL;
 |  | ||||||
| +    int ret = bdrv_open_file_child(NULL, options, "file", bs, errp);
 |  | ||||||
| +    if (ret < 0) {
 |  | ||||||
| +        return ret;
 |  | ||||||
|      } |  | ||||||
|   |  | ||||||
|      if (!bs->file->bs->drv || !block_driver_can_compress(bs->file->bs->drv)) { |  | ||||||
| diff --git a/block/parallels.c b/block/parallels.c
 |  | ||||||
| index 6ebad2a2bb..ed4debd899 100644
 |  | ||||||
| --- a/block/parallels.c
 |  | ||||||
| +++ b/block/parallels.c
 |  | ||||||
| @@ -735,10 +735,9 @@ static int parallels_open(BlockDriverState *bs, QDict *options, int flags,
 |  | ||||||
|      Error *local_err = NULL; |  | ||||||
|      char *buf; |  | ||||||
|   |  | ||||||
| -    bs->file = bdrv_open_child(NULL, options, "file", bs, &child_of_bds,
 |  | ||||||
| -                               BDRV_CHILD_IMAGE, false, errp);
 |  | ||||||
| -    if (!bs->file) {
 |  | ||||||
| -        return -EINVAL;
 |  | ||||||
| +    ret = bdrv_open_file_child(NULL, options, "file", bs, errp);
 |  | ||||||
| +    if (ret < 0) {
 |  | ||||||
| +        return ret;
 |  | ||||||
|      } |  | ||||||
|   |  | ||||||
|      ret = bdrv_pread(bs->file, 0, &ph, sizeof(ph)); |  | ||||||
| diff --git a/block/preallocate.c b/block/preallocate.c
 |  | ||||||
| index 1d4233f730..332408bdc9 100644
 |  | ||||||
| --- a/block/preallocate.c
 |  | ||||||
| +++ b/block/preallocate.c
 |  | ||||||
| @@ -134,6 +134,7 @@ static int preallocate_open(BlockDriverState *bs, QDict *options, int flags,
 |  | ||||||
|                              Error **errp) |  | ||||||
|  { |  | ||||||
|      BDRVPreallocateState *s = bs->opaque; |  | ||||||
| +    int ret;
 |  | ||||||
|   |  | ||||||
|      /* |  | ||||||
|       * s->data_end and friends should be initialized on permission update. |  | ||||||
| @@ -141,11 +142,9 @@ static int preallocate_open(BlockDriverState *bs, QDict *options, int flags,
 |  | ||||||
|       */ |  | ||||||
|      s->file_end = s->zero_start = s->data_end = -EINVAL; |  | ||||||
|   |  | ||||||
| -    bs->file = bdrv_open_child(NULL, options, "file", bs, &child_of_bds,
 |  | ||||||
| -                               BDRV_CHILD_FILTERED | BDRV_CHILD_PRIMARY,
 |  | ||||||
| -                               false, errp);
 |  | ||||||
| -    if (!bs->file) {
 |  | ||||||
| -        return -EINVAL;
 |  | ||||||
| +    ret = bdrv_open_file_child(NULL, options, "file", bs, errp);
 |  | ||||||
| +    if (ret < 0) {
 |  | ||||||
| +        return ret;
 |  | ||||||
|      } |  | ||||||
|   |  | ||||||
|      if (!preallocate_absorb_opts(&s->opts, options, bs->file->bs, errp)) { |  | ||||||
| diff --git a/block/qcow.c b/block/qcow.c
 |  | ||||||
| index c39940f33e..544a17261f 100644
 |  | ||||||
| --- a/block/qcow.c
 |  | ||||||
| +++ b/block/qcow.c
 |  | ||||||
| @@ -120,10 +120,8 @@ static int qcow_open(BlockDriverState *bs, QDict *options, int flags,
 |  | ||||||
|      qdict_extract_subqdict(options, &encryptopts, "encrypt."); |  | ||||||
|      encryptfmt = qdict_get_try_str(encryptopts, "format"); |  | ||||||
|   |  | ||||||
| -    bs->file = bdrv_open_child(NULL, options, "file", bs, &child_of_bds,
 |  | ||||||
| -                               BDRV_CHILD_IMAGE, false, errp);
 |  | ||||||
| -    if (!bs->file) {
 |  | ||||||
| -        ret = -EINVAL;
 |  | ||||||
| +    ret = bdrv_open_file_child(NULL, options, "file", bs, errp);
 |  | ||||||
| +    if (ret < 0) {
 |  | ||||||
|          goto fail; |  | ||||||
|      } |  | ||||||
|   |  | ||||||
| diff --git a/block/qcow2.c b/block/qcow2.c
 |  | ||||||
| index 6ee1919612..29ea157e6b 100644
 |  | ||||||
| --- a/block/qcow2.c
 |  | ||||||
| +++ b/block/qcow2.c
 |  | ||||||
| @@ -1907,11 +1907,11 @@ static int qcow2_open(BlockDriverState *bs, QDict *options, int flags,
 |  | ||||||
|          .errp = errp, |  | ||||||
|          .ret = -EINPROGRESS |  | ||||||
|      }; |  | ||||||
| +    int ret;
 |  | ||||||
|   |  | ||||||
| -    bs->file = bdrv_open_child(NULL, options, "file", bs, &child_of_bds,
 |  | ||||||
| -                               BDRV_CHILD_IMAGE, false, errp);
 |  | ||||||
| -    if (!bs->file) {
 |  | ||||||
| -        return -EINVAL;
 |  | ||||||
| +    ret = bdrv_open_file_child(NULL, options, "file", bs, errp);
 |  | ||||||
| +    if (ret < 0) {
 |  | ||||||
| +        return ret;
 |  | ||||||
|      } |  | ||||||
|   |  | ||||||
|      /* Initialise locks */ |  | ||||||
| diff --git a/block/qed.c b/block/qed.c
 |  | ||||||
| index 558d3646c4..e3b06a3d00 100644
 |  | ||||||
| --- a/block/qed.c
 |  | ||||||
| +++ b/block/qed.c
 |  | ||||||
| @@ -558,11 +558,11 @@ static int bdrv_qed_open(BlockDriverState *bs, QDict *options, int flags,
 |  | ||||||
|          .errp = errp, |  | ||||||
|          .ret = -EINPROGRESS |  | ||||||
|      }; |  | ||||||
| +    int ret;
 |  | ||||||
|   |  | ||||||
| -    bs->file = bdrv_open_child(NULL, options, "file", bs, &child_of_bds,
 |  | ||||||
| -                               BDRV_CHILD_IMAGE, false, errp);
 |  | ||||||
| -    if (!bs->file) {
 |  | ||||||
| -        return -EINVAL;
 |  | ||||||
| +    ret = bdrv_open_file_child(NULL, options, "file", bs, errp);
 |  | ||||||
| +    if (ret < 0) {
 |  | ||||||
| +        return ret;
 |  | ||||||
|      } |  | ||||||
|   |  | ||||||
|      bdrv_qed_init_state(bs); |  | ||||||
| diff --git a/block/replication.c b/block/replication.c
 |  | ||||||
| index 55c8f894aa..2f17397764 100644
 |  | ||||||
| --- a/block/replication.c
 |  | ||||||
| +++ b/block/replication.c
 |  | ||||||
| @@ -88,11 +88,9 @@ static int replication_open(BlockDriverState *bs, QDict *options,
 |  | ||||||
|      const char *mode; |  | ||||||
|      const char *top_id; |  | ||||||
|   |  | ||||||
| -    bs->file = bdrv_open_child(NULL, options, "file", bs, &child_of_bds,
 |  | ||||||
| -                               BDRV_CHILD_FILTERED | BDRV_CHILD_PRIMARY,
 |  | ||||||
| -                               false, errp);
 |  | ||||||
| -    if (!bs->file) {
 |  | ||||||
| -        return -EINVAL;
 |  | ||||||
| +    ret = bdrv_open_file_child(NULL, options, "file", bs, errp);
 |  | ||||||
| +    if (ret < 0) {
 |  | ||||||
| +        return ret;
 |  | ||||||
|      } |  | ||||||
|   |  | ||||||
|      ret = -EINVAL; |  | ||||||
| diff --git a/block/throttle.c b/block/throttle.c
 |  | ||||||
| index 6e8d52fa24..4fb5798c27 100644
 |  | ||||||
| --- a/block/throttle.c
 |  | ||||||
| +++ b/block/throttle.c
 |  | ||||||
| @@ -78,11 +78,9 @@ static int throttle_open(BlockDriverState *bs, QDict *options,
 |  | ||||||
|      char *group; |  | ||||||
|      int ret; |  | ||||||
|   |  | ||||||
| -    bs->file = bdrv_open_child(NULL, options, "file", bs, &child_of_bds,
 |  | ||||||
| -                               BDRV_CHILD_FILTERED | BDRV_CHILD_PRIMARY,
 |  | ||||||
| -                               false, errp);
 |  | ||||||
| -    if (!bs->file) {
 |  | ||||||
| -        return -EINVAL;
 |  | ||||||
| +    ret = bdrv_open_file_child(NULL, options, "file", bs, errp);
 |  | ||||||
| +    if (ret < 0) {
 |  | ||||||
| +        return ret;
 |  | ||||||
|      } |  | ||||||
|      bs->supported_write_flags = bs->file->bs->supported_write_flags | |  | ||||||
|                                  BDRV_REQ_WRITE_UNCHANGED; |  | ||||||
| diff --git a/block/vdi.c b/block/vdi.c
 |  | ||||||
| index bdc58d726e..c50c0ed61f 100644
 |  | ||||||
| --- a/block/vdi.c
 |  | ||||||
| +++ b/block/vdi.c
 |  | ||||||
| @@ -376,10 +376,9 @@ static int vdi_open(BlockDriverState *bs, QDict *options, int flags,
 |  | ||||||
|      int ret; |  | ||||||
|      QemuUUID uuid_link, uuid_parent; |  | ||||||
|   |  | ||||||
| -    bs->file = bdrv_open_child(NULL, options, "file", bs, &child_of_bds,
 |  | ||||||
| -                               BDRV_CHILD_IMAGE, false, errp);
 |  | ||||||
| -    if (!bs->file) {
 |  | ||||||
| -        return -EINVAL;
 |  | ||||||
| +    ret = bdrv_open_file_child(NULL, options, "file", bs, errp);
 |  | ||||||
| +    if (ret < 0) {
 |  | ||||||
| +        return ret;
 |  | ||||||
|      } |  | ||||||
|   |  | ||||||
|      logout("\n"); |  | ||||||
| diff --git a/block/vhdx.c b/block/vhdx.c
 |  | ||||||
| index 356ec4c455..e7d6d7509a 100644
 |  | ||||||
| --- a/block/vhdx.c
 |  | ||||||
| +++ b/block/vhdx.c
 |  | ||||||
| @@ -996,10 +996,9 @@ static int vhdx_open(BlockDriverState *bs, QDict *options, int flags,
 |  | ||||||
|      uint64_t signature; |  | ||||||
|      Error *local_err = NULL; |  | ||||||
|   |  | ||||||
| -    bs->file = bdrv_open_child(NULL, options, "file", bs, &child_of_bds,
 |  | ||||||
| -                               BDRV_CHILD_IMAGE, false, errp);
 |  | ||||||
| -    if (!bs->file) {
 |  | ||||||
| -        return -EINVAL;
 |  | ||||||
| +    ret = bdrv_open_file_child(NULL, options, "file", bs, errp);
 |  | ||||||
| +    if (ret < 0) {
 |  | ||||||
| +        return ret;
 |  | ||||||
|      } |  | ||||||
|   |  | ||||||
|      s->bat = NULL; |  | ||||||
| diff --git a/block/vmdk.c b/block/vmdk.c
 |  | ||||||
| index 0dfab6e941..7d7e56b36c 100644
 |  | ||||||
| --- a/block/vmdk.c
 |  | ||||||
| +++ b/block/vmdk.c
 |  | ||||||
| @@ -1262,10 +1262,9 @@ static int vmdk_open(BlockDriverState *bs, QDict *options, int flags,
 |  | ||||||
|      BDRVVmdkState *s = bs->opaque; |  | ||||||
|      uint32_t magic; |  | ||||||
|   |  | ||||||
| -    bs->file = bdrv_open_child(NULL, options, "file", bs, &child_of_bds,
 |  | ||||||
| -                               BDRV_CHILD_IMAGE, false, errp);
 |  | ||||||
| -    if (!bs->file) {
 |  | ||||||
| -        return -EINVAL;
 |  | ||||||
| +    ret = bdrv_open_file_child(NULL, options, "file", bs, errp);
 |  | ||||||
| +    if (ret < 0) {
 |  | ||||||
| +        return ret;
 |  | ||||||
|      } |  | ||||||
|   |  | ||||||
|      buf = vmdk_read_desc(bs->file, 0, errp); |  | ||||||
| diff --git a/block/vpc.c b/block/vpc.c
 |  | ||||||
| index 297a26262a..430cab1cbb 100644
 |  | ||||||
| --- a/block/vpc.c
 |  | ||||||
| +++ b/block/vpc.c
 |  | ||||||
| @@ -232,10 +232,9 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags,
 |  | ||||||
|      int ret; |  | ||||||
|      int64_t bs_size; |  | ||||||
|   |  | ||||||
| -    bs->file = bdrv_open_child(NULL, options, "file", bs, &child_of_bds,
 |  | ||||||
| -                               BDRV_CHILD_IMAGE, false, errp);
 |  | ||||||
| -    if (!bs->file) {
 |  | ||||||
| -        return -EINVAL;
 |  | ||||||
| +    ret = bdrv_open_file_child(NULL, options, "file", bs, errp);
 |  | ||||||
| +    if (ret < 0) {
 |  | ||||||
| +        return ret;
 |  | ||||||
|      } |  | ||||||
|   |  | ||||||
|      opts = qemu_opts_create(&vpc_runtime_opts, NULL, 0, &error_abort); |  | ||||||
| diff --git a/include/block/block.h b/include/block/block.h
 |  | ||||||
| index e5dd22b034..f885f113ef 100644
 |  | ||||||
| --- a/include/block/block.h
 |  | ||||||
| +++ b/include/block/block.h
 |  | ||||||
| @@ -376,6 +376,9 @@ BdrvChild *bdrv_open_child(const char *filename,
 |  | ||||||
|                             const BdrvChildClass *child_class, |  | ||||||
|                             BdrvChildRole child_role, |  | ||||||
|                             bool allow_none, Error **errp); |  | ||||||
| +int bdrv_open_file_child(const char *filename,
 |  | ||||||
| +                         QDict *options, const char *bdref_key,
 |  | ||||||
| +                         BlockDriverState *parent, Error **errp);
 |  | ||||||
|  BlockDriverState *bdrv_open_blockdev_ref(BlockdevRef *ref, Error **errp); |  | ||||||
|  int bdrv_set_backing_hd(BlockDriverState *bs, BlockDriverState *backing_hd, |  | ||||||
|                          Error **errp); |  | ||||||
| -- 
 |  | ||||||
| 2.39.3 |  | ||||||
| 
 |  | ||||||
| @ -1,104 +0,0 @@ | |||||||
| From 636e32b4c570ddb20266b6672311174353644f0e Mon Sep 17 00:00:00 2001 |  | ||||||
| From: Keith Busch <kbusch@kernel.org> |  | ||||||
| Date: Thu, 29 Sep 2022 13:05:22 -0700 |  | ||||||
| Subject: [PATCH 1/2] block: move bdrv_qiov_is_aligned to file-posix |  | ||||||
| 
 |  | ||||||
| RH-Author: Kevin Wolf <kwolf@redhat.com> |  | ||||||
| RH-MergeRequest: 411: block: Fix iov_len check in bdrv_qiov_is_aligned() |  | ||||||
| RH-Jira: RHEL-60553 |  | ||||||
| RH-Acked-by: Eric Blake <eblake@redhat.com> |  | ||||||
| RH-Acked-by: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| RH-Commit: [1/2] 682c1b81b42959d9d91e0f68cd70e9753e53a279 |  | ||||||
| 
 |  | ||||||
| There is only user of bdrv_qiov_is_aligned(), so move the alignment |  | ||||||
| function to there and make it static. |  | ||||||
| 
 |  | ||||||
| Signed-off-by: Keith Busch <kbusch@kernel.org> |  | ||||||
| Message-Id: <20220929200523.3218710-2-kbusch@meta.com> |  | ||||||
| Reviewed-by: Kevin Wolf <kwolf@redhat.com> |  | ||||||
| Signed-off-by: Kevin Wolf <kwolf@redhat.com> |  | ||||||
| (cherry picked from commit a7c5f67a78569f8c275ea4ea9962e9c79b9d03cb) |  | ||||||
| Signed-off-by: Kevin Wolf <kwolf@redhat.com> |  | ||||||
| ---
 |  | ||||||
|  block/file-posix.c    | 20 ++++++++++++++++++++ |  | ||||||
|  block/io.c            | 20 -------------------- |  | ||||||
|  include/block/block.h |  1 - |  | ||||||
|  3 files changed, 20 insertions(+), 21 deletions(-) |  | ||||||
| 
 |  | ||||||
| diff --git a/block/file-posix.c b/block/file-posix.c
 |  | ||||||
| index b283093e5b..b404e1544f 100644
 |  | ||||||
| --- a/block/file-posix.c
 |  | ||||||
| +++ b/block/file-posix.c
 |  | ||||||
| @@ -2051,6 +2051,26 @@ static int coroutine_fn raw_thread_pool_submit(BlockDriverState *bs,
 |  | ||||||
|      return thread_pool_submit_co(pool, func, arg); |  | ||||||
|  } |  | ||||||
|   |  | ||||||
| +/*
 |  | ||||||
| + * Check if all memory in this vector is sector aligned.
 |  | ||||||
| + */
 |  | ||||||
| +static bool bdrv_qiov_is_aligned(BlockDriverState *bs, QEMUIOVector *qiov)
 |  | ||||||
| +{
 |  | ||||||
| +    int i;
 |  | ||||||
| +    size_t alignment = bdrv_min_mem_align(bs);
 |  | ||||||
| +
 |  | ||||||
| +    for (i = 0; i < qiov->niov; i++) {
 |  | ||||||
| +        if ((uintptr_t) qiov->iov[i].iov_base % alignment) {
 |  | ||||||
| +            return false;
 |  | ||||||
| +        }
 |  | ||||||
| +        if (qiov->iov[i].iov_len % alignment) {
 |  | ||||||
| +            return false;
 |  | ||||||
| +        }
 |  | ||||||
| +    }
 |  | ||||||
| +
 |  | ||||||
| +    return true;
 |  | ||||||
| +}
 |  | ||||||
| +
 |  | ||||||
|  static int coroutine_fn raw_co_prw(BlockDriverState *bs, uint64_t offset, |  | ||||||
|                                     uint64_t bytes, QEMUIOVector *qiov, int type) |  | ||||||
|  { |  | ||||||
| diff --git a/block/io.c b/block/io.c
 |  | ||||||
| index 8ae57728a6..639e171eff 100644
 |  | ||||||
| --- a/block/io.c
 |  | ||||||
| +++ b/block/io.c
 |  | ||||||
| @@ -3375,26 +3375,6 @@ void *qemu_try_blockalign0(BlockDriverState *bs, size_t size)
 |  | ||||||
|      return mem; |  | ||||||
|  } |  | ||||||
|   |  | ||||||
| -/*
 |  | ||||||
| - * Check if all memory in this vector is sector aligned.
 |  | ||||||
| - */
 |  | ||||||
| -bool bdrv_qiov_is_aligned(BlockDriverState *bs, QEMUIOVector *qiov)
 |  | ||||||
| -{
 |  | ||||||
| -    int i;
 |  | ||||||
| -    size_t alignment = bdrv_min_mem_align(bs);
 |  | ||||||
| -
 |  | ||||||
| -    for (i = 0; i < qiov->niov; i++) {
 |  | ||||||
| -        if ((uintptr_t) qiov->iov[i].iov_base % alignment) {
 |  | ||||||
| -            return false;
 |  | ||||||
| -        }
 |  | ||||||
| -        if (qiov->iov[i].iov_len % alignment) {
 |  | ||||||
| -            return false;
 |  | ||||||
| -        }
 |  | ||||||
| -    }
 |  | ||||||
| -
 |  | ||||||
| -    return true;
 |  | ||||||
| -}
 |  | ||||||
| -
 |  | ||||||
|  void bdrv_io_plug(BlockDriverState *bs) |  | ||||||
|  { |  | ||||||
|      BdrvChild *child; |  | ||||||
| diff --git a/include/block/block.h b/include/block/block.h
 |  | ||||||
| index f885f113ef..09b374b496 100644
 |  | ||||||
| --- a/include/block/block.h
 |  | ||||||
| +++ b/include/block/block.h
 |  | ||||||
| @@ -622,7 +622,6 @@ void *qemu_blockalign(BlockDriverState *bs, size_t size);
 |  | ||||||
|  void *qemu_blockalign0(BlockDriverState *bs, size_t size); |  | ||||||
|  void *qemu_try_blockalign(BlockDriverState *bs, size_t size); |  | ||||||
|  void *qemu_try_blockalign0(BlockDriverState *bs, size_t size); |  | ||||||
| -bool bdrv_qiov_is_aligned(BlockDriverState *bs, QEMUIOVector *qiov);
 |  | ||||||
|   |  | ||||||
|  void bdrv_enable_copy_on_read(BlockDriverState *bs); |  | ||||||
|  void bdrv_disable_copy_on_read(BlockDriverState *bs); |  | ||||||
| -- 
 |  | ||||||
| 2.45.2 |  | ||||||
| 
 |  | ||||||
| @ -1,48 +0,0 @@ | |||||||
| From 9009b674a01dc0cd92c319c87714b5aca6e639f8 Mon Sep 17 00:00:00 2001 |  | ||||||
| From: Keith Busch <kbusch@kernel.org> |  | ||||||
| Date: Thu, 29 Sep 2022 13:05:23 -0700 |  | ||||||
| Subject: [PATCH 2/2] block: use the request length for iov alignment |  | ||||||
| 
 |  | ||||||
| RH-Author: Kevin Wolf <kwolf@redhat.com> |  | ||||||
| RH-MergeRequest: 411: block: Fix iov_len check in bdrv_qiov_is_aligned() |  | ||||||
| RH-Jira: RHEL-60553 |  | ||||||
| RH-Acked-by: Eric Blake <eblake@redhat.com> |  | ||||||
| RH-Acked-by: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| RH-Commit: [2/2] 0e01d51cfb21ca43283626c2367e5c5d0d531736 |  | ||||||
| 
 |  | ||||||
| An iov length needs to be aligned to the logical block size, which may |  | ||||||
| be larger than the memory alignment. |  | ||||||
| 
 |  | ||||||
| Tested-by: Jens Axboe <axboe@kernel.dk> |  | ||||||
| Signed-off-by: Keith Busch <kbusch@kernel.org> |  | ||||||
| Message-Id: <20220929200523.3218710-3-kbusch@meta.com> |  | ||||||
| Reviewed-by: Kevin Wolf <kwolf@redhat.com> |  | ||||||
| Signed-off-by: Kevin Wolf <kwolf@redhat.com> |  | ||||||
| (cherry picked from commit 25474d90aa50bd32e0de395a33d8de42dd6f2aef) |  | ||||||
| Signed-off-by: Kevin Wolf <kwolf@redhat.com> |  | ||||||
| ---
 |  | ||||||
|  block/file-posix.c | 3 ++- |  | ||||||
|  1 file changed, 2 insertions(+), 1 deletion(-) |  | ||||||
| 
 |  | ||||||
| diff --git a/block/file-posix.c b/block/file-posix.c
 |  | ||||||
| index b404e1544f..b84c5725cc 100644
 |  | ||||||
| --- a/block/file-posix.c
 |  | ||||||
| +++ b/block/file-posix.c
 |  | ||||||
| @@ -2058,12 +2058,13 @@ static bool bdrv_qiov_is_aligned(BlockDriverState *bs, QEMUIOVector *qiov)
 |  | ||||||
|  { |  | ||||||
|      int i; |  | ||||||
|      size_t alignment = bdrv_min_mem_align(bs); |  | ||||||
| +    size_t len = bs->bl.request_alignment;
 |  | ||||||
|   |  | ||||||
|      for (i = 0; i < qiov->niov; i++) { |  | ||||||
|          if ((uintptr_t) qiov->iov[i].iov_base % alignment) { |  | ||||||
|              return false; |  | ||||||
|          } |  | ||||||
| -        if (qiov->iov[i].iov_len % alignment) {
 |  | ||||||
| +        if (qiov->iov[i].iov_len % len) {
 |  | ||||||
|              return false; |  | ||||||
|          } |  | ||||||
|      } |  | ||||||
| -- 
 |  | ||||||
| 2.45.2 |  | ||||||
| 
 |  | ||||||
| @ -1,105 +0,0 @@ | |||||||
| From 939c75ab92ac608893cad0e46f55527950518a57 Mon Sep 17 00:00:00 2001 |  | ||||||
| From: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| Date: Tue, 5 Mar 2024 11:36:15 -0500 |  | ||||||
| Subject: [PATCH 1/3] glib-compat: Introduce g_memdup2() wrapper |  | ||||||
| MIME-Version: 1.0 |  | ||||||
| Content-Type: text/plain; charset=UTF-8 |  | ||||||
| Content-Transfer-Encoding: 8bit |  | ||||||
| 
 |  | ||||||
| RH-Author: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| RH-MergeRequest: 353: ui/clipboard: mark type as not available when there is no data |  | ||||||
| RH-Jira: RHEL-19628 |  | ||||||
| RH-Acked-by: Marc-André Lureau <marcandre.lureau@redhat.com> |  | ||||||
| RH-Acked-by: Gerd Hoffmann <None> |  | ||||||
| RH-Commit: [1/2] f401c63303ef558bfcbb36e4c8fcc8bf2b1c3eb4 (redhat/rhel/src/qemu-kvm/jons-qemu-kvm-2) |  | ||||||
| 
 |  | ||||||
| JIRA: https://issues.redhat.com/browse/RHEL-19628 |  | ||||||
| CVE: CVE-2023-6683 |  | ||||||
| Upstream: Merged |  | ||||||
| 
 |  | ||||||
| commit 2c674fada72079583a3f2cc1790b16a0259c4fa0 |  | ||||||
| Author: Philippe Mathieu-Daudé <philmd@linaro.org> |  | ||||||
| Date:   Fri Sep 3 19:44:44 2021 +0200 |  | ||||||
| 
 |  | ||||||
|     glib-compat: Introduce g_memdup2() wrapper |  | ||||||
|     When experimenting raising GLIB_VERSION_MIN_REQUIRED to 2.68 |  | ||||||
|     (Fedora 34 provides GLib 2.68.1) we get: |  | ||||||
| 
 |  | ||||||
|       hw/virtio/virtio-crypto.c:245:24: error: 'g_memdup' is deprecated: Use 'g_memdup2' instead [-Werror,-Wdeprecated-declarations] |  | ||||||
|       ... |  | ||||||
| 
 |  | ||||||
|     g_memdup() has been updated by g_memdup2() to fix eventual security |  | ||||||
|     issues (size argument is 32-bit and could be truncated / wrapping). |  | ||||||
|     GLib recommends to copy their static inline version of g_memdup2(): |  | ||||||
|     https://discourse.gnome.org/t/port-your-module-from-g-memdup-to-g-memdup2-now/5538 |  | ||||||
| 
 |  | ||||||
|     Our glib-compat.h provides a comment explaining how to deal with |  | ||||||
|     these deprecated declarations (see commit e71e8cc0355 |  | ||||||
|     "glib: enforce the minimum required version and warn about old APIs"). |  | ||||||
| 
 |  | ||||||
|     Following this comment suggestion, implement the g_memdup2_qemu() |  | ||||||
|     wrapper to g_memdup2(), and use the safer equivalent inlined when |  | ||||||
|     we are using pre-2.68 GLib. |  | ||||||
| 
 |  | ||||||
|     Reported-by: Eric Blake <eblake@redhat.com> |  | ||||||
|     Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> |  | ||||||
|     Reviewed-by: Eric Blake <eblake@redhat.com> |  | ||||||
|     Message-Id: <20210903174510.751630-3-philmd@redhat.com> |  | ||||||
|     Signed-off-by: Laurent Vivier <laurent@vivier.eu> |  | ||||||
| 
 |  | ||||||
| Signed-off-by: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| ---
 |  | ||||||
|  include/glib-compat.h | 37 +++++++++++++++++++++++++++++++++++++ |  | ||||||
|  1 file changed, 37 insertions(+) |  | ||||||
| 
 |  | ||||||
| diff --git a/include/glib-compat.h b/include/glib-compat.h
 |  | ||||||
| index 9e95c888f5..8d01a8c01f 100644
 |  | ||||||
| --- a/include/glib-compat.h
 |  | ||||||
| +++ b/include/glib-compat.h
 |  | ||||||
| @@ -68,6 +68,43 @@
 |  | ||||||
|   * without generating warnings. |  | ||||||
|   */ |  | ||||||
|   |  | ||||||
| +/*
 |  | ||||||
| + * g_memdup2_qemu:
 |  | ||||||
| + * @mem: (nullable): the memory to copy.
 |  | ||||||
| + * @byte_size: the number of bytes to copy.
 |  | ||||||
| + *
 |  | ||||||
| + * Allocates @byte_size bytes of memory, and copies @byte_size bytes into it
 |  | ||||||
| + * from @mem. If @mem is %NULL it returns %NULL.
 |  | ||||||
| + *
 |  | ||||||
| + * This replaces g_memdup(), which was prone to integer overflows when
 |  | ||||||
| + * converting the argument from a #gsize to a #guint.
 |  | ||||||
| + *
 |  | ||||||
| + * This static inline version is a backport of the new public API from
 |  | ||||||
| + * GLib 2.68, kept internal to GLib for backport to older stable releases.
 |  | ||||||
| + * See https://gitlab.gnome.org/GNOME/glib/-/issues/2319.
 |  | ||||||
| + *
 |  | ||||||
| + * Returns: (nullable): a pointer to the newly-allocated copy of the memory,
 |  | ||||||
| + *          or %NULL if @mem is %NULL.
 |  | ||||||
| + */
 |  | ||||||
| +static inline gpointer g_memdup2_qemu(gconstpointer mem, gsize byte_size)
 |  | ||||||
| +{
 |  | ||||||
| +#if GLIB_CHECK_VERSION(2, 68, 0)
 |  | ||||||
| +    return g_memdup2(mem, byte_size);
 |  | ||||||
| +#else
 |  | ||||||
| +    gpointer new_mem;
 |  | ||||||
| +
 |  | ||||||
| +    if (mem && byte_size != 0) {
 |  | ||||||
| +        new_mem = g_malloc(byte_size);
 |  | ||||||
| +        memcpy(new_mem, mem, byte_size);
 |  | ||||||
| +    } else {
 |  | ||||||
| +        new_mem = NULL;
 |  | ||||||
| +    }
 |  | ||||||
| +
 |  | ||||||
| +    return new_mem;
 |  | ||||||
| +#endif
 |  | ||||||
| +}
 |  | ||||||
| +#define g_memdup2(m, s) g_memdup2_qemu(m, s)
 |  | ||||||
| +
 |  | ||||||
|  #if defined(G_OS_UNIX) |  | ||||||
|  /* |  | ||||||
|   * Note: The fallback implementation is not MT-safe, and it returns a copy of |  | ||||||
| -- 
 |  | ||||||
| 2.41.0 |  | ||||||
| 
 |  | ||||||
| @ -1,61 +0,0 @@ | |||||||
| From f4623ea611a74c684b0097b98a803cbe7ffb0825 Mon Sep 17 00:00:00 2001 |  | ||||||
| From: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| Date: Thu, 18 Jul 2024 09:26:55 -0400 |  | ||||||
| Subject: [PATCH 5/6] hw/char/virtio-serial-bus: Protect from DMA re-entrancy |  | ||||||
|  bugs |  | ||||||
| MIME-Version: 1.0 |  | ||||||
| Content-Type: text/plain; charset=UTF-8 |  | ||||||
| Content-Transfer-Encoding: 8bit |  | ||||||
| 
 |  | ||||||
| RH-Author: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| RH-MergeRequest: 380: QEMU: virtio: DMA reentrancy issue leads to double free vulnerability |  | ||||||
| RH-Jira: RHEL-32276 |  | ||||||
| RH-Acked-by: Gerd Hoffmann <None> |  | ||||||
| RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com> |  | ||||||
| RH-Commit: [5/6] fc8a445ebf6e763cd1482cd1f7ee23e5b5bbb388 (redhat/rhel/src/qemu-kvm/jons-qemu-kvm-2) |  | ||||||
| 
 |  | ||||||
| JIRA: https://issues.redhat.com/browse/RHEL-32276 |  | ||||||
| CVE: CVE-2024-3446 |  | ||||||
| Upstream: Merged |  | ||||||
| 
 |  | ||||||
| commit b4295bff25f7b50de1d9cc94a9c6effd40056bca |  | ||||||
| Author: Philippe Mathieu-Daudé <philmd@linaro.org> |  | ||||||
| Date:   Thu Apr 4 20:56:35 2024 +0200 |  | ||||||
| 
 |  | ||||||
|     hw/char/virtio-serial-bus: Protect from DMA re-entrancy bugs |  | ||||||
| 
 |  | ||||||
|     Replace qemu_bh_new_guarded() by virtio_bh_new_guarded() |  | ||||||
|     so the bus and device use the same guard. Otherwise the |  | ||||||
|     DMA-reentrancy protection can be bypassed. |  | ||||||
| 
 |  | ||||||
|     Fixes: CVE-2024-3446 |  | ||||||
|     Cc: qemu-stable@nongnu.org |  | ||||||
|     Suggested-by: Alexander Bulekov <alxndr@bu.edu> |  | ||||||
|     Reviewed-by: Gerd Hoffmann <kraxel@redhat.com> |  | ||||||
|     Acked-by: Michael S. Tsirkin <mst@redhat.com> |  | ||||||
|     Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> |  | ||||||
|     Reviewed-by: Michael S. Tsirkin <mst@redhat.com> |  | ||||||
|     Message-Id: <20240409105537.18308-4-philmd@linaro.org> |  | ||||||
| 
 |  | ||||||
| Signed-off-by: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| ---
 |  | ||||||
|  hw/char/virtio-serial-bus.c | 3 +-- |  | ||||||
|  1 file changed, 1 insertion(+), 2 deletions(-) |  | ||||||
| 
 |  | ||||||
| diff --git a/hw/char/virtio-serial-bus.c b/hw/char/virtio-serial-bus.c
 |  | ||||||
| index f18124b155..791b7ac59e 100644
 |  | ||||||
| --- a/hw/char/virtio-serial-bus.c
 |  | ||||||
| +++ b/hw/char/virtio-serial-bus.c
 |  | ||||||
| @@ -985,8 +985,7 @@ static void virtser_port_device_realize(DeviceState *dev, Error **errp)
 |  | ||||||
|          return; |  | ||||||
|      } |  | ||||||
|   |  | ||||||
| -    port->bh = qemu_bh_new_guarded(flush_queued_data_bh, port,
 |  | ||||||
| -                                   &dev->mem_reentrancy_guard);
 |  | ||||||
| +    port->bh = virtio_bh_new_guarded(dev, flush_queued_data_bh, port);
 |  | ||||||
|      port->elem = NULL; |  | ||||||
|  } |  | ||||||
|   |  | ||||||
| -- 
 |  | ||||||
| 2.39.3 |  | ||||||
| 
 |  | ||||||
| @ -1,160 +0,0 @@ | |||||||
| From d37035373a266644b241aab1f041ab09c9185540 Mon Sep 17 00:00:00 2001 |  | ||||||
| From: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| Date: Thu, 18 Jul 2024 09:29:54 -0400 |  | ||||||
| Subject: [PATCH 4/6] hw/display/virtio-gpu: Protect from DMA re-entrancy bugs |  | ||||||
| MIME-Version: 1.0 |  | ||||||
| Content-Type: text/plain; charset=UTF-8 |  | ||||||
| Content-Transfer-Encoding: 8bit |  | ||||||
| 
 |  | ||||||
| RH-Author: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| RH-MergeRequest: 380: QEMU: virtio: DMA reentrancy issue leads to double free vulnerability |  | ||||||
| RH-Jira: RHEL-32276 |  | ||||||
| RH-Acked-by: Gerd Hoffmann <None> |  | ||||||
| RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com> |  | ||||||
| RH-Commit: [4/6] e3cd21742228528a1a74ea62d55b5941d3efb261 (redhat/rhel/src/qemu-kvm/jons-qemu-kvm-2) |  | ||||||
| 
 |  | ||||||
| JIRA: https://issues.redhat.com/browse/RHEL-32276 |  | ||||||
| CVE: CVE-2024-3446 |  | ||||||
| Upstream: Merged |  | ||||||
| 
 |  | ||||||
| commit ba28e0ff4d95b56dc334aac2730ab3651ffc3132 |  | ||||||
| Author: Philippe Mathieu-Daudé <philmd@linaro.org> |  | ||||||
| Date:   Thu Apr 4 20:56:27 2024 +0200 |  | ||||||
| 
 |  | ||||||
|     hw/display/virtio-gpu: Protect from DMA re-entrancy bugs |  | ||||||
| 
 |  | ||||||
|     Replace qemu_bh_new_guarded() by virtio_bh_new_guarded() |  | ||||||
|     so the bus and device use the same guard. Otherwise the |  | ||||||
|     DMA-reentrancy protection can be bypassed: |  | ||||||
| 
 |  | ||||||
|       $ cat << EOF | qemu-system-i386 -display none -nodefaults \ |  | ||||||
|                                       -machine q35,accel=qtest \ |  | ||||||
|                                       -m 512M \ |  | ||||||
|                                       -device virtio-gpu \ |  | ||||||
|                                       -qtest stdio |  | ||||||
|       outl 0xcf8 0x80000820 |  | ||||||
|       outl 0xcfc 0xe0004000 |  | ||||||
|       outl 0xcf8 0x80000804 |  | ||||||
|       outw 0xcfc 0x06 |  | ||||||
|       write 0xe0004030 0x4 0x024000e0 |  | ||||||
|       write 0xe0004028 0x1 0xff |  | ||||||
|       write 0xe0004020 0x4 0x00009300 |  | ||||||
|       write 0xe000401c 0x1 0x01 |  | ||||||
|       write 0x101 0x1 0x04 |  | ||||||
|       write 0x103 0x1 0x1c |  | ||||||
|       write 0x9301c8 0x1 0x18 |  | ||||||
|       write 0x105 0x1 0x1c |  | ||||||
|       write 0x107 0x1 0x1c |  | ||||||
|       write 0x109 0x1 0x1c |  | ||||||
|       write 0x10b 0x1 0x00 |  | ||||||
|       write 0x10d 0x1 0x00 |  | ||||||
|       write 0x10f 0x1 0x00 |  | ||||||
|       write 0x111 0x1 0x00 |  | ||||||
|       write 0x113 0x1 0x00 |  | ||||||
|       write 0x115 0x1 0x00 |  | ||||||
|       write 0x117 0x1 0x00 |  | ||||||
|       write 0x119 0x1 0x00 |  | ||||||
|       write 0x11b 0x1 0x00 |  | ||||||
|       write 0x11d 0x1 0x00 |  | ||||||
|       write 0x11f 0x1 0x00 |  | ||||||
|       write 0x121 0x1 0x00 |  | ||||||
|       write 0x123 0x1 0x00 |  | ||||||
|       write 0x125 0x1 0x00 |  | ||||||
|       write 0x127 0x1 0x00 |  | ||||||
|       write 0x129 0x1 0x00 |  | ||||||
|       write 0x12b 0x1 0x00 |  | ||||||
|       write 0x12d 0x1 0x00 |  | ||||||
|       write 0x12f 0x1 0x00 |  | ||||||
|       write 0x131 0x1 0x00 |  | ||||||
|       write 0x133 0x1 0x00 |  | ||||||
|       write 0x135 0x1 0x00 |  | ||||||
|       write 0x137 0x1 0x00 |  | ||||||
|       write 0x139 0x1 0x00 |  | ||||||
|       write 0xe0007003 0x1 0x00 |  | ||||||
|       EOF |  | ||||||
|       ... |  | ||||||
|       ================================================================= |  | ||||||
|       ==276099==ERROR: AddressSanitizer: heap-use-after-free on address 0x60d000011178 |  | ||||||
|       at pc 0x562cc3b736c7 bp 0x7ffed49dee60 sp 0x7ffed49dee58 |  | ||||||
|       READ of size 8 at 0x60d000011178 thread T0 |  | ||||||
|           #0 0x562cc3b736c6 in virtio_gpu_ctrl_response hw/display/virtio-gpu.c:180:42 |  | ||||||
|           #1 0x562cc3b7c40b in virtio_gpu_ctrl_response_nodata hw/display/virtio-gpu.c:192:5 |  | ||||||
|           #2 0x562cc3b7c40b in virtio_gpu_simple_process_cmd hw/display/virtio-gpu.c:1015:13 |  | ||||||
|           #3 0x562cc3b82873 in virtio_gpu_process_cmdq hw/display/virtio-gpu.c:1050:9 |  | ||||||
|           #4 0x562cc4a85514 in aio_bh_call util/async.c:169:5 |  | ||||||
|           #5 0x562cc4a85c52 in aio_bh_poll util/async.c:216:13 |  | ||||||
|           #6 0x562cc4a1a79b in aio_dispatch util/aio-posix.c:423:5 |  | ||||||
|           #7 0x562cc4a8a2da in aio_ctx_dispatch util/async.c:358:5 |  | ||||||
|           #8 0x7f36840547a8 in g_main_context_dispatch (/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x547a8) |  | ||||||
|           #9 0x562cc4a8b753 in glib_pollfds_poll util/main-loop.c:290:9 |  | ||||||
|           #10 0x562cc4a8b753 in os_host_main_loop_wait util/main-loop.c:313:5 |  | ||||||
|           #11 0x562cc4a8b753 in main_loop_wait util/main-loop.c:592:11 |  | ||||||
|           #12 0x562cc3938186 in qemu_main_loop system/runstate.c:782:9 |  | ||||||
|           #13 0x562cc43b7af5 in qemu_default_main system/main.c:37:14 |  | ||||||
|           #14 0x7f3683a6c189 in __libc_start_call_main csu/../sysdeps/nptl/libc_start_call_main.h:58:16 |  | ||||||
|           #15 0x7f3683a6c244 in __libc_start_main csu/../csu/libc-start.c:381:3 |  | ||||||
|           #16 0x562cc2a58ac0 in _start (qemu-system-i386+0x231bac0) |  | ||||||
| 
 |  | ||||||
|       0x60d000011178 is located 56 bytes inside of 136-byte region [0x60d000011140,0x60d0000111c8) |  | ||||||
|       freed by thread T0 here: |  | ||||||
|           #0 0x562cc2adb662 in __interceptor_free (qemu-system-i386+0x239e662) |  | ||||||
|           #1 0x562cc3b86b21 in virtio_gpu_reset hw/display/virtio-gpu.c:1524:9 |  | ||||||
|           #2 0x562cc416e20e in virtio_reset hw/virtio/virtio.c:2145:9 |  | ||||||
|           #3 0x562cc37c5644 in virtio_pci_reset hw/virtio/virtio-pci.c:2249:5 |  | ||||||
|           #4 0x562cc4233758 in memory_region_write_accessor system/memory.c:497:5 |  | ||||||
|           #5 0x562cc4232eea in access_with_adjusted_size system/memory.c:573:18 |  | ||||||
| 
 |  | ||||||
|       previously allocated by thread T0 here: |  | ||||||
|           #0 0x562cc2adb90e in malloc (qemu-system-i386+0x239e90e) |  | ||||||
|           #1 0x7f368405a678 in g_malloc (/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x5a678) |  | ||||||
|           #2 0x562cc4163ffc in virtqueue_split_pop hw/virtio/virtio.c:1612:12 |  | ||||||
|           #3 0x562cc4163ffc in virtqueue_pop hw/virtio/virtio.c:1783:16 |  | ||||||
|           #4 0x562cc3b91a95 in virtio_gpu_handle_ctrl hw/display/virtio-gpu.c:1112:15 |  | ||||||
|           #5 0x562cc4a85514 in aio_bh_call util/async.c:169:5 |  | ||||||
|           #6 0x562cc4a85c52 in aio_bh_poll util/async.c:216:13 |  | ||||||
|           #7 0x562cc4a1a79b in aio_dispatch util/aio-posix.c:423:5 |  | ||||||
| 
 |  | ||||||
|       SUMMARY: AddressSanitizer: heap-use-after-free hw/display/virtio-gpu.c:180:42 in virtio_gpu_ctrl_response |  | ||||||
| 
 |  | ||||||
|     With this change, the same reproducer triggers: |  | ||||||
| 
 |  | ||||||
|       qemu-system-i386: warning: Blocked re-entrant IO on MemoryRegion: virtio-pci-common-virtio-gpu at addr: 0x6 |  | ||||||
| 
 |  | ||||||
|     Fixes: CVE-2024-3446 |  | ||||||
|     Cc: qemu-stable@nongnu.org |  | ||||||
|     Reported-by: Alexander Bulekov <alxndr@bu.edu> |  | ||||||
|     Reported-by: Yongkang Jia <kangel@zju.edu.cn> |  | ||||||
|     Reported-by: Xiao Lei <nop.leixiao@gmail.com> |  | ||||||
|     Reported-by: Yiming Tao <taoym@zju.edu.cn> |  | ||||||
|     Buglink: https://bugs.launchpad.net/qemu/+bug/1888606 |  | ||||||
|     Reviewed-by: Gerd Hoffmann <kraxel@redhat.com> |  | ||||||
|     Acked-by: Michael S. Tsirkin <mst@redhat.com> |  | ||||||
|     Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> |  | ||||||
|     Reviewed-by: Michael S. Tsirkin <mst@redhat.com> |  | ||||||
|     Message-Id: <20240409105537.18308-3-philmd@linaro.org> |  | ||||||
| 
 |  | ||||||
| Signed-off-by: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| ---
 |  | ||||||
|  hw/display/virtio-gpu.c | 6 ++---- |  | ||||||
|  1 file changed, 2 insertions(+), 4 deletions(-) |  | ||||||
| 
 |  | ||||||
| diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c
 |  | ||||||
| index c28ce1ea72..64fdc18478 100644
 |  | ||||||
| --- a/hw/display/virtio-gpu.c
 |  | ||||||
| +++ b/hw/display/virtio-gpu.c
 |  | ||||||
| @@ -1334,10 +1334,8 @@ void virtio_gpu_device_realize(DeviceState *qdev, Error **errp)
 |  | ||||||
|   |  | ||||||
|      g->ctrl_vq = virtio_get_queue(vdev, 0); |  | ||||||
|      g->cursor_vq = virtio_get_queue(vdev, 1); |  | ||||||
| -    g->ctrl_bh = qemu_bh_new_guarded(virtio_gpu_ctrl_bh, g,
 |  | ||||||
| -                                     &qdev->mem_reentrancy_guard);
 |  | ||||||
| -    g->cursor_bh = qemu_bh_new_guarded(virtio_gpu_cursor_bh, g,
 |  | ||||||
| -                                       &qdev->mem_reentrancy_guard);
 |  | ||||||
| +    g->ctrl_bh = virtio_bh_new_guarded(qdev, virtio_gpu_ctrl_bh, g);
 |  | ||||||
| +    g->cursor_bh = virtio_bh_new_guarded(qdev, virtio_gpu_cursor_bh, g);
 |  | ||||||
|      g->reset_bh = qemu_bh_new(virtio_gpu_reset_bh, g); |  | ||||||
|      qemu_cond_init(&g->reset_cond); |  | ||||||
|      QTAILQ_INIT(&g->reslist); |  | ||||||
| -- 
 |  | ||||||
| 2.39.3 |  | ||||||
| 
 |  | ||||||
| @ -1,86 +0,0 @@ | |||||||
| From 1b62d61c495bf4cd3a819ab8d1ef024d153e0ece Mon Sep 17 00:00:00 2001 |  | ||||||
| From: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| Date: Thu, 18 Jul 2024 09:40:29 -0400 |  | ||||||
| Subject: [PATCH 3/6] hw/virtio: Introduce virtio_bh_new_guarded() helper |  | ||||||
| MIME-Version: 1.0 |  | ||||||
| Content-Type: text/plain; charset=UTF-8 |  | ||||||
| Content-Transfer-Encoding: 8bit |  | ||||||
| 
 |  | ||||||
| RH-Author: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| RH-MergeRequest: 380: QEMU: virtio: DMA reentrancy issue leads to double free vulnerability |  | ||||||
| RH-Jira: RHEL-32276 |  | ||||||
| RH-Acked-by: Gerd Hoffmann <None> |  | ||||||
| RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com> |  | ||||||
| RH-Commit: [3/6] 1cbde7ddb8393b72e2e8d457b5e2d739116567a9 (redhat/rhel/src/qemu-kvm/jons-qemu-kvm-2) |  | ||||||
| 
 |  | ||||||
| JIRA: https://issues.redhat.com/browse/RHEL-32276 |  | ||||||
| CVE: CVE-2024-3446 |  | ||||||
| Upstream: Merged |  | ||||||
| 
 |  | ||||||
| commit ec0504b989ca61e03636384d3602b7bf07ffe4da |  | ||||||
| Author: Philippe Mathieu-Daudé <philmd@linaro.org> |  | ||||||
| Date:   Thu Apr 4 20:56:11 2024 +0200 |  | ||||||
| 
 |  | ||||||
|     hw/virtio: Introduce virtio_bh_new_guarded() helper |  | ||||||
| 
 |  | ||||||
|     Introduce virtio_bh_new_guarded(), similar to qemu_bh_new_guarded() |  | ||||||
|     but using the transport memory guard, instead of the device one |  | ||||||
|     (there can only be one virtio device per virtio bus). |  | ||||||
| 
 |  | ||||||
|     Inspired-by: Gerd Hoffmann <kraxel@redhat.com> |  | ||||||
|     Reviewed-by: Gerd Hoffmann <kraxel@redhat.com> |  | ||||||
|     Acked-by: Michael S. Tsirkin <mst@redhat.com> |  | ||||||
|     Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> |  | ||||||
|     Reviewed-by: Michael S. Tsirkin <mst@redhat.com> |  | ||||||
|     Message-Id: <20240409105537.18308-2-philmd@linaro.org> |  | ||||||
| 
 |  | ||||||
| Signed-off-by: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| ---
 |  | ||||||
|  hw/virtio/virtio.c         | 10 ++++++++++ |  | ||||||
|  include/hw/virtio/virtio.h |  7 +++++++ |  | ||||||
|  2 files changed, 17 insertions(+) |  | ||||||
| 
 |  | ||||||
| diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
 |  | ||||||
| index ea7c079fb0..5ae9c44841 100644
 |  | ||||||
| --- a/hw/virtio/virtio.c
 |  | ||||||
| +++ b/hw/virtio/virtio.c
 |  | ||||||
| @@ -3874,3 +3874,13 @@ static void virtio_register_types(void)
 |  | ||||||
|  } |  | ||||||
|   |  | ||||||
|  type_init(virtio_register_types) |  | ||||||
| +
 |  | ||||||
| +QEMUBH *virtio_bh_new_guarded_full(DeviceState *dev,
 |  | ||||||
| +                                   QEMUBHFunc *cb, void *opaque,
 |  | ||||||
| +                                   const char *name)
 |  | ||||||
| +{
 |  | ||||||
| +    DeviceState *transport = qdev_get_parent_bus(dev)->parent;
 |  | ||||||
| +
 |  | ||||||
| +    return qemu_bh_new_full(cb, opaque, name,
 |  | ||||||
| +                            &transport->mem_reentrancy_guard);
 |  | ||||||
| +}
 |  | ||||||
| diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
 |  | ||||||
| index 8bab9cfb75..731c631a81 100644
 |  | ||||||
| --- a/include/hw/virtio/virtio.h
 |  | ||||||
| +++ b/include/hw/virtio/virtio.h
 |  | ||||||
| @@ -22,6 +22,7 @@
 |  | ||||||
|  #include "standard-headers/linux/virtio_config.h" |  | ||||||
|  #include "standard-headers/linux/virtio_ring.h" |  | ||||||
|  #include "qom/object.h" |  | ||||||
| +#include "block/aio.h"
 |  | ||||||
|   |  | ||||||
|  /* A guest should never accept this.  It implies negotiation is broken. */ |  | ||||||
|  #define VIRTIO_F_BAD_FEATURE		30 |  | ||||||
| @@ -397,4 +398,10 @@ static inline bool virtio_device_disabled(VirtIODevice *vdev)
 |  | ||||||
|  bool virtio_legacy_allowed(VirtIODevice *vdev); |  | ||||||
|  bool virtio_legacy_check_disabled(VirtIODevice *vdev); |  | ||||||
|   |  | ||||||
| +QEMUBH *virtio_bh_new_guarded_full(DeviceState *dev,
 |  | ||||||
| +                                   QEMUBHFunc *cb, void *opaque,
 |  | ||||||
| +                                   const char *name);
 |  | ||||||
| +#define virtio_bh_new_guarded(dev, cb, opaque) \
 |  | ||||||
| +    virtio_bh_new_guarded_full((dev), (cb), (opaque), (stringify(cb)))
 |  | ||||||
| +
 |  | ||||||
|  #endif |  | ||||||
| -- 
 |  | ||||||
| 2.39.3 |  | ||||||
| 
 |  | ||||||
| @ -1,62 +0,0 @@ | |||||||
| From 2ecbd673a0e2191821ce88128587f709936ad765 Mon Sep 17 00:00:00 2001 |  | ||||||
| From: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| Date: Thu, 18 Jul 2024 09:21:27 -0400 |  | ||||||
| Subject: [PATCH 6/6] hw/virtio/virtio-crypto: Protect from DMA re-entrancy |  | ||||||
|  bugs |  | ||||||
| MIME-Version: 1.0 |  | ||||||
| Content-Type: text/plain; charset=UTF-8 |  | ||||||
| Content-Transfer-Encoding: 8bit |  | ||||||
| 
 |  | ||||||
| RH-Author: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| RH-MergeRequest: 380: QEMU: virtio: DMA reentrancy issue leads to double free vulnerability |  | ||||||
| RH-Jira: RHEL-32276 |  | ||||||
| RH-Acked-by: Gerd Hoffmann <None> |  | ||||||
| RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com> |  | ||||||
| RH-Commit: [6/6] 975ac4640fd8e7cbf3820757787ee7b1270173be (redhat/rhel/src/qemu-kvm/jons-qemu-kvm-2) |  | ||||||
| 
 |  | ||||||
| JIRA: https://issues.redhat.com/browse/RHEL-32276 |  | ||||||
| CVE: CVE-2024-3446 |  | ||||||
| Upstream: Merged |  | ||||||
| 
 |  | ||||||
| commit f4729ec39ad97a42ceaa7b5697f84f440ea6e5dc |  | ||||||
| Author: Philippe Mathieu-Daudé <philmd@linaro.org> |  | ||||||
| Date:   Thu Apr 4 20:56:41 2024 +0200 |  | ||||||
| 
 |  | ||||||
|     hw/virtio/virtio-crypto: Protect from DMA re-entrancy bugs |  | ||||||
| 
 |  | ||||||
|     Replace qemu_bh_new_guarded() by virtio_bh_new_guarded() |  | ||||||
|     so the bus and device use the same guard. Otherwise the |  | ||||||
|     DMA-reentrancy protection can be bypassed. |  | ||||||
| 
 |  | ||||||
|     Fixes: CVE-2024-3446 |  | ||||||
|     Cc: qemu-stable@nongnu.org |  | ||||||
|     Suggested-by: Alexander Bulekov <alxndr@bu.edu> |  | ||||||
|     Reviewed-by: Gerd Hoffmann <kraxel@redhat.com> |  | ||||||
|     Acked-by: Michael S. Tsirkin <mst@redhat.com> |  | ||||||
|     Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> |  | ||||||
|     Reviewed-by: Michael S. Tsirkin <mst@redhat.com> |  | ||||||
|     Message-Id: <20240409105537.18308-5-philmd@linaro.org> |  | ||||||
| 
 |  | ||||||
| Signed-off-by: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| ---
 |  | ||||||
|  hw/virtio/virtio-crypto.c | 4 ++-- |  | ||||||
|  1 file changed, 2 insertions(+), 2 deletions(-) |  | ||||||
| 
 |  | ||||||
| diff --git a/hw/virtio/virtio-crypto.c b/hw/virtio/virtio-crypto.c
 |  | ||||||
| index 1be7bb543c..1741d4aba1 100644
 |  | ||||||
| --- a/hw/virtio/virtio-crypto.c
 |  | ||||||
| +++ b/hw/virtio/virtio-crypto.c
 |  | ||||||
| @@ -817,8 +817,8 @@ static void virtio_crypto_device_realize(DeviceState *dev, Error **errp)
 |  | ||||||
|          vcrypto->vqs[i].dataq = |  | ||||||
|                   virtio_add_queue(vdev, 1024, virtio_crypto_handle_dataq_bh); |  | ||||||
|          vcrypto->vqs[i].dataq_bh = |  | ||||||
| -                 qemu_bh_new_guarded(virtio_crypto_dataq_bh, &vcrypto->vqs[i],
 |  | ||||||
| -                                     &dev->mem_reentrancy_guard);
 |  | ||||||
| +                 virtio_bh_new_guarded(dev, virtio_crypto_dataq_bh,
 |  | ||||||
| +                                       &vcrypto->vqs[i]);
 |  | ||||||
|          vcrypto->vqs[i].vcrypto = vcrypto; |  | ||||||
|      } |  | ||||||
|   |  | ||||||
| -- 
 |  | ||||||
| 2.39.3 |  | ||||||
| 
 |  | ||||||
| @ -1,68 +0,0 @@ | |||||||
| From 3cb587f460ec432f329fb83df034bbb7e79e17aa Mon Sep 17 00:00:00 2001 |  | ||||||
| From: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| Date: Wed, 5 Jun 2024 19:56:51 -0400 |  | ||||||
| Subject: [PATCH 2/5] iotests/244: Don't store data-file with protocol in image |  | ||||||
| 
 |  | ||||||
| RH-Author: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| RH-MergeRequest: 5: EMBARGOED CVE-2024-4467 for rhel-8.10.z (PRDSC) |  | ||||||
| RH-Jira: RHEL-35616 |  | ||||||
| RH-CVE: CVE-2024-4467 |  | ||||||
| RH-Acked-by: Kevin Wolf <kwolf@redhat.com> |  | ||||||
| RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com> |  | ||||||
| RH-Commit: [2/5] a422cfdba938e1bd857008ccbbddc695011ae0ff |  | ||||||
| 
 |  | ||||||
| commit 92e00dab8be1570b13172353d77d2af44cb4e22b |  | ||||||
| Author: Kevin Wolf <kwolf@redhat.com> |  | ||||||
| Date:   Thu Apr 25 14:49:40 2024 +0200 |  | ||||||
| 
 |  | ||||||
|     iotests/244: Don't store data-file with protocol in image |  | ||||||
| 
 |  | ||||||
|     We want to disable filename parsing for data files because it's too easy |  | ||||||
|     to abuse in malicious image files. Make the test ready for the change by |  | ||||||
|     passing the data file explicitly in command line options. |  | ||||||
| 
 |  | ||||||
|     Signed-off-by: Kevin Wolf <kwolf@redhat.com> |  | ||||||
|     Reviewed-by: Eric Blake <eblake@redhat.com> |  | ||||||
|     Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> |  | ||||||
|     Reviewed-by: Hanna Czenczek <hreitz@redhat.com> |  | ||||||
|     Upstream: N/A, embargoed |  | ||||||
|     Signed-off-by: Hanna Czenczek <hreitz@redhat.com> |  | ||||||
| 
 |  | ||||||
| Signed-off-by: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| ---
 |  | ||||||
|  tests/qemu-iotests/244 | 19 ++++++++++++++++--- |  | ||||||
|  1 file changed, 16 insertions(+), 3 deletions(-) |  | ||||||
| 
 |  | ||||||
| diff --git a/tests/qemu-iotests/244 b/tests/qemu-iotests/244
 |  | ||||||
| index 3e61fa25bb..bb9cc6512f 100755
 |  | ||||||
| --- a/tests/qemu-iotests/244
 |  | ||||||
| +++ b/tests/qemu-iotests/244
 |  | ||||||
| @@ -215,9 +215,22 @@ $QEMU_IMG convert -f $IMGFMT -O $IMGFMT -n -C "$TEST_IMG.src" "$TEST_IMG"
 |  | ||||||
|  $QEMU_IMG compare -f $IMGFMT -F $IMGFMT "$TEST_IMG.src" "$TEST_IMG" |  | ||||||
|   |  | ||||||
|  # blkdebug doesn't support copy offloading, so this tests the error path |  | ||||||
| -$QEMU_IMG amend -f $IMGFMT -o "data_file=blkdebug::$TEST_IMG.data" "$TEST_IMG"
 |  | ||||||
| -$QEMU_IMG convert -f $IMGFMT -O $IMGFMT -n -C "$TEST_IMG.src" "$TEST_IMG"
 |  | ||||||
| -$QEMU_IMG compare -f $IMGFMT -F $IMGFMT "$TEST_IMG.src" "$TEST_IMG"
 |  | ||||||
| +test_img_with_blkdebug="json:{
 |  | ||||||
| +    'driver': 'qcow2',
 |  | ||||||
| +    'file': {
 |  | ||||||
| +        'driver': 'file',
 |  | ||||||
| +        'filename': '$TEST_IMG'
 |  | ||||||
| +    },
 |  | ||||||
| +    'data-file': {
 |  | ||||||
| +        'driver': 'blkdebug',
 |  | ||||||
| +        'image': {
 |  | ||||||
| +            'driver': 'file',
 |  | ||||||
| +            'filename': '$TEST_IMG.data'
 |  | ||||||
| +        }
 |  | ||||||
| +    }
 |  | ||||||
| +}"
 |  | ||||||
| +$QEMU_IMG convert -f $IMGFMT -O $IMGFMT -n -C "$TEST_IMG.src" "$test_img_with_blkdebug"
 |  | ||||||
| +$QEMU_IMG compare -f $IMGFMT -F $IMGFMT "$TEST_IMG.src" "$test_img_with_blkdebug"
 |  | ||||||
|   |  | ||||||
|  echo |  | ||||||
|  echo "=== Flushing should flush the data file ===" |  | ||||||
| -- 
 |  | ||||||
| 2.39.3 |  | ||||||
| 
 |  | ||||||
| @ -1,71 +0,0 @@ | |||||||
| From 59a84673079f9763e9507733e308442397aba703 Mon Sep 17 00:00:00 2001 |  | ||||||
| From: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| Date: Wed, 5 Jun 2024 19:56:51 -0400 |  | ||||||
| Subject: [PATCH 3/5] iotests/270: Don't store data-file with json: prefix in |  | ||||||
|  image |  | ||||||
| 
 |  | ||||||
| RH-Author: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| RH-MergeRequest: 5: EMBARGOED CVE-2024-4467 for rhel-8.10.z (PRDSC) |  | ||||||
| RH-Jira: RHEL-35616 |  | ||||||
| RH-CVE: CVE-2024-4467 |  | ||||||
| RH-Acked-by: Kevin Wolf <kwolf@redhat.com> |  | ||||||
| RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com> |  | ||||||
| RH-Commit: [3/5] ac08690fd3ea3af6e24b2f6a8beedcfe469917a8 |  | ||||||
| 
 |  | ||||||
| commit 705bcc2819ce8e0f8b9d660a93bc48de26413aec |  | ||||||
| Author: Kevin Wolf <kwolf@redhat.com> |  | ||||||
| Date:   Thu Apr 25 14:49:40 2024 +0200 |  | ||||||
| 
 |  | ||||||
|     iotests/270: Don't store data-file with json: prefix in image |  | ||||||
| 
 |  | ||||||
|     We want to disable filename parsing for data files because it's too easy |  | ||||||
|     to abuse in malicious image files. Make the test ready for the change by |  | ||||||
|     passing the data file explicitly in command line options. |  | ||||||
| 
 |  | ||||||
|     Signed-off-by: Kevin Wolf <kwolf@redhat.com> |  | ||||||
|     Reviewed-by: Eric Blake <eblake@redhat.com> |  | ||||||
|     Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> |  | ||||||
|     Reviewed-by: Hanna Czenczek <hreitz@redhat.com> |  | ||||||
|     Upstream: N/A, embargoed |  | ||||||
|     Signed-off-by: Hanna Czenczek <hreitz@redhat.com> |  | ||||||
| 
 |  | ||||||
| Signed-off-by: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| ---
 |  | ||||||
|  tests/qemu-iotests/270 | 14 +++++++++++--- |  | ||||||
|  1 file changed, 11 insertions(+), 3 deletions(-) |  | ||||||
| 
 |  | ||||||
| diff --git a/tests/qemu-iotests/270 b/tests/qemu-iotests/270
 |  | ||||||
| index 74352342db..c37b674aa2 100755
 |  | ||||||
| --- a/tests/qemu-iotests/270
 |  | ||||||
| +++ b/tests/qemu-iotests/270
 |  | ||||||
| @@ -60,8 +60,16 @@ _make_test_img -o cluster_size=2M,data_file="$TEST_IMG.orig" \
 |  | ||||||
|  # "write" 2G of data without using any space. |  | ||||||
|  # (qemu-img create does not like it, though, because null-co does not |  | ||||||
|  # support image creation.) |  | ||||||
| -$QEMU_IMG amend -o data_file="json:{'driver':'null-co',,'size':'4294967296'}" \
 |  | ||||||
| -    "$TEST_IMG"
 |  | ||||||
| +test_img_with_null_data="json:{
 |  | ||||||
| +    'driver': '$IMGFMT',
 |  | ||||||
| +    'file': {
 |  | ||||||
| +        'filename': '$TEST_IMG'
 |  | ||||||
| +    },
 |  | ||||||
| +    'data-file': {
 |  | ||||||
| +        'driver': 'null-co',
 |  | ||||||
| +        'size':'4294967296'
 |  | ||||||
| +    }
 |  | ||||||
| +}"
 |  | ||||||
|   |  | ||||||
|  # This gives us a range of: |  | ||||||
|  #   2^31 - 512 + 768 - 1 = 2^31 + 255 > 2^31 |  | ||||||
| @@ -74,7 +82,7 @@ $QEMU_IMG amend -o data_file="json:{'driver':'null-co',,'size':'4294967296'}" \
 |  | ||||||
|  # on L2 boundaries, we need large L2 tables; hence the cluster size of |  | ||||||
|  # 2 MB.  (Anything from 256 kB should work, though, because then one L2 |  | ||||||
|  # table covers 8 GB.) |  | ||||||
| -$QEMU_IO -c "write 768 $((2 ** 31 - 512))" "$TEST_IMG" | _filter_qemu_io
 |  | ||||||
| +$QEMU_IO -c "write 768 $((2 ** 31 - 512))" "$test_img_with_null_data" | _filter_qemu_io
 |  | ||||||
|   |  | ||||||
|  _check_test_img |  | ||||||
|   |  | ||||||
| -- 
 |  | ||||||
| 2.39.3 |  | ||||||
| 
 |  | ||||||
| @ -1,277 +0,0 @@ | |||||||
| From a0b12780f3cb97abad0a2c54d185c298d3f589e7 Mon Sep 17 00:00:00 2001 |  | ||||||
| From: Eric Blake <eblake@redhat.com> |  | ||||||
| Date: Fri, 17 May 2024 21:50:15 -0500 |  | ||||||
| Subject: [PATCH 2/3] iotests: test NBD+TLS+iothread |  | ||||||
| MIME-Version: 1.0 |  | ||||||
| Content-Type: text/plain; charset=UTF-8 |  | ||||||
| Content-Transfer-Encoding: 8bit |  | ||||||
| 
 |  | ||||||
| RH-Author: Eric Blake <eblake@redhat.com> |  | ||||||
| RH-MergeRequest: 398: nbd/server: CVE-2024-7409: Avoid use-after-free when closing server |  | ||||||
| RH-Jira: RHEL-52611 |  | ||||||
| RH-Acked-by: Kevin Wolf <kwolf@redhat.com> |  | ||||||
| RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com> |  | ||||||
| RH-Commit: [2/3] f522ff5156086a83a7327c379dd3ccd8b583a421 (ebblake/qemu-kvm) |  | ||||||
| 
 |  | ||||||
| Prevent regressions when using NBD with TLS in the presence of |  | ||||||
| iothreads, adding coverage the fix to qio channels made in the |  | ||||||
| previous patch. |  | ||||||
| 
 |  | ||||||
| The shell function pick_unused_port() was copied from |  | ||||||
| nbdkit.git/tests/functions.sh.in, where it had all authors from Red |  | ||||||
| Hat, agreeing to the resulting relicensing from 2-clause BSD to GPLv2. |  | ||||||
| 
 |  | ||||||
| CC: qemu-stable@nongnu.org |  | ||||||
| CC: "Richard W.M. Jones" <rjones@redhat.com> |  | ||||||
| Signed-off-by: Eric Blake <eblake@redhat.com> |  | ||||||
| Message-ID: <20240531180639.1392905-6-eblake@redhat.com> |  | ||||||
| Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> |  | ||||||
| 
 |  | ||||||
| (cherry picked from commit a73c99378022ebb785481e84cfe1e81097546268) |  | ||||||
| Jira: https://issues.redhat.com/browse/RHEL-52611 |  | ||||||
| Conflicts: |  | ||||||
| 	tests/qemu-iotests/tests/nbd-tls-iothread{,.out} - drop unknown |  | ||||||
|           "tls-hostname" parameter |  | ||||||
| Signed-off-by: Eric Blake <eblake@redhat.com> |  | ||||||
| ---
 |  | ||||||
|  tests/qemu-iotests/tests/nbd-tls-iothread     | 167 ++++++++++++++++++ |  | ||||||
|  tests/qemu-iotests/tests/nbd-tls-iothread.out |  53 ++++++ |  | ||||||
|  2 files changed, 220 insertions(+) |  | ||||||
|  create mode 100755 tests/qemu-iotests/tests/nbd-tls-iothread |  | ||||||
|  create mode 100644 tests/qemu-iotests/tests/nbd-tls-iothread.out |  | ||||||
| 
 |  | ||||||
| diff --git a/tests/qemu-iotests/tests/nbd-tls-iothread b/tests/qemu-iotests/tests/nbd-tls-iothread
 |  | ||||||
| new file mode 100755 |  | ||||||
| index 0000000000..9e747e2639
 |  | ||||||
| --- /dev/null
 |  | ||||||
| +++ b/tests/qemu-iotests/tests/nbd-tls-iothread
 |  | ||||||
| @@ -0,0 +1,167 @@
 |  | ||||||
| +#!/usr/bin/env bash
 |  | ||||||
| +# group: rw quick
 |  | ||||||
| +#
 |  | ||||||
| +# Test of NBD+TLS+iothread
 |  | ||||||
| +#
 |  | ||||||
| +# Copyright (C) 2024 Red Hat, Inc.
 |  | ||||||
| +#
 |  | ||||||
| +# This program is free software; you can redistribute it and/or modify
 |  | ||||||
| +# it under the terms of the GNU General Public License as published by
 |  | ||||||
| +# the Free Software Foundation; either version 2 of the License, or
 |  | ||||||
| +# (at your option) any later version.
 |  | ||||||
| +#
 |  | ||||||
| +# This program is distributed in the hope that it will be useful,
 |  | ||||||
| +# but WITHOUT ANY WARRANTY; without even the implied warranty of
 |  | ||||||
| +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 |  | ||||||
| +# GNU General Public License for more details.
 |  | ||||||
| +#
 |  | ||||||
| +# You should have received a copy of the GNU General Public License
 |  | ||||||
| +# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 |  | ||||||
| +#
 |  | ||||||
| +
 |  | ||||||
| +# creator
 |  | ||||||
| +owner=eblake@redhat.com
 |  | ||||||
| +
 |  | ||||||
| +seq=`basename $0`
 |  | ||||||
| +echo "QA output created by $seq"
 |  | ||||||
| +
 |  | ||||||
| +status=1    # failure is the default!
 |  | ||||||
| +
 |  | ||||||
| +_cleanup()
 |  | ||||||
| +{
 |  | ||||||
| +    _cleanup_qemu
 |  | ||||||
| +    _cleanup_test_img
 |  | ||||||
| +    rm -f "$dst_image"
 |  | ||||||
| +    tls_x509_cleanup
 |  | ||||||
| +}
 |  | ||||||
| +trap "_cleanup; exit \$status" 0 1 2 3 15
 |  | ||||||
| +
 |  | ||||||
| +# get standard environment, filters and checks
 |  | ||||||
| +cd ..
 |  | ||||||
| +. ./common.rc
 |  | ||||||
| +. ./common.filter
 |  | ||||||
| +. ./common.qemu
 |  | ||||||
| +. ./common.tls
 |  | ||||||
| +. ./common.nbd
 |  | ||||||
| +
 |  | ||||||
| +_supported_fmt qcow2  # Hardcoded to qcow2 command line and QMP below
 |  | ||||||
| +_supported_proto file
 |  | ||||||
| +
 |  | ||||||
| +# pick_unused_port
 |  | ||||||
| +#
 |  | ||||||
| +# Picks and returns an "unused" port, setting the global variable
 |  | ||||||
| +# $port.
 |  | ||||||
| +#
 |  | ||||||
| +# This is inherently racy, but we need it because qemu does not currently
 |  | ||||||
| +# permit NBD+TLS over a Unix domain socket
 |  | ||||||
| +pick_unused_port ()
 |  | ||||||
| +{
 |  | ||||||
| +    if ! (ss --version) >/dev/null 2>&1; then
 |  | ||||||
| +        _notrun "ss utility required, skipped this test"
 |  | ||||||
| +    fi
 |  | ||||||
| +
 |  | ||||||
| +    # Start at a random port to make it less likely that two parallel
 |  | ||||||
| +    # tests will conflict.
 |  | ||||||
| +    port=$(( 50000 + (RANDOM%15000) ))
 |  | ||||||
| +    while ss -ltn | grep -sqE ":$port\b"; do
 |  | ||||||
| +        ((port++))
 |  | ||||||
| +        if [ $port -eq 65000 ]; then port=50000; fi
 |  | ||||||
| +    done
 |  | ||||||
| +    echo picked unused port
 |  | ||||||
| +}
 |  | ||||||
| +
 |  | ||||||
| +tls_x509_init
 |  | ||||||
| +
 |  | ||||||
| +size=1G
 |  | ||||||
| +DST_IMG="$TEST_DIR/dst.qcow2"
 |  | ||||||
| +
 |  | ||||||
| +echo
 |  | ||||||
| +echo "== preparing TLS creds and spare port =="
 |  | ||||||
| +
 |  | ||||||
| +pick_unused_port
 |  | ||||||
| +tls_x509_create_root_ca "ca1"
 |  | ||||||
| +tls_x509_create_server "ca1" "server1"
 |  | ||||||
| +tls_x509_create_client "ca1" "client1"
 |  | ||||||
| +tls_obj_base=tls-creds-x509,id=tls0,verify-peer=true,dir="${tls_dir}"
 |  | ||||||
| +
 |  | ||||||
| +echo
 |  | ||||||
| +echo "== preparing image =="
 |  | ||||||
| +
 |  | ||||||
| +_make_test_img $size
 |  | ||||||
| +$QEMU_IMG create -f qcow2 "$DST_IMG" $size | _filter_img_create
 |  | ||||||
| +
 |  | ||||||
| +echo
 |  | ||||||
| +echo === Starting Src QEMU ===
 |  | ||||||
| +echo
 |  | ||||||
| +
 |  | ||||||
| +_launch_qemu -machine q35 \
 |  | ||||||
| +    -object iothread,id=iothread0 \
 |  | ||||||
| +    -object "${tls_obj_base}"/client1,endpoint=client \
 |  | ||||||
| +    -device '{"driver":"pcie-root-port", "id":"root0", "multifunction":true,
 |  | ||||||
| +              "bus":"pcie.0"}' \
 |  | ||||||
| +    -device '{"driver":"virtio-scsi-pci", "id":"virtio_scsi_pci0",
 |  | ||||||
| +              "bus":"root0", "iothread":"iothread0"}' \
 |  | ||||||
| +    -device '{"driver":"scsi-hd", "id":"image1", "drive":"drive_image1",
 |  | ||||||
| +              "bus":"virtio_scsi_pci0.0"}' \
 |  | ||||||
| +    -blockdev '{"driver":"file", "cache":{"direct":true, "no-flush":false},
 |  | ||||||
| +                "filename":"'"$TEST_IMG"'", "node-name":"drive_sys1"}' \
 |  | ||||||
| +    -blockdev '{"driver":"qcow2", "node-name":"drive_image1",
 |  | ||||||
| +                "file":"drive_sys1"}'
 |  | ||||||
| +h1=$QEMU_HANDLE
 |  | ||||||
| +_send_qemu_cmd $h1 '{"execute": "qmp_capabilities"}' 'return'
 |  | ||||||
| +
 |  | ||||||
| +echo
 |  | ||||||
| +echo === Starting Dst VM2 ===
 |  | ||||||
| +echo
 |  | ||||||
| +
 |  | ||||||
| +_launch_qemu -machine q35 \
 |  | ||||||
| +    -object iothread,id=iothread0 \
 |  | ||||||
| +    -object "${tls_obj_base}"/server1,endpoint=server \
 |  | ||||||
| +    -device '{"driver":"pcie-root-port", "id":"root0", "multifunction":true,
 |  | ||||||
| +              "bus":"pcie.0"}' \
 |  | ||||||
| +    -device '{"driver":"virtio-scsi-pci", "id":"virtio_scsi_pci0",
 |  | ||||||
| +              "bus":"root0", "iothread":"iothread0"}' \
 |  | ||||||
| +    -device '{"driver":"scsi-hd", "id":"image1", "drive":"drive_image1",
 |  | ||||||
| +              "bus":"virtio_scsi_pci0.0"}' \
 |  | ||||||
| +    -blockdev '{"driver":"file", "cache":{"direct":true, "no-flush":false},
 |  | ||||||
| +                "filename":"'"$DST_IMG"'", "node-name":"drive_sys1"}' \
 |  | ||||||
| +    -blockdev '{"driver":"qcow2", "node-name":"drive_image1",
 |  | ||||||
| +                "file":"drive_sys1"}' \
 |  | ||||||
| +    -incoming defer
 |  | ||||||
| +h2=$QEMU_HANDLE
 |  | ||||||
| +_send_qemu_cmd $h2 '{"execute": "qmp_capabilities"}' 'return'
 |  | ||||||
| +
 |  | ||||||
| +echo
 |  | ||||||
| +echo === Dst VM: Enable NBD server for incoming storage migration ===
 |  | ||||||
| +echo
 |  | ||||||
| +
 |  | ||||||
| +_send_qemu_cmd $h2 '{"execute": "nbd-server-start", "arguments":
 |  | ||||||
| +    {"addr": {"type": "inet", "data": {"host": "127.0.0.1", "port": "'$port'"}},
 |  | ||||||
| +              "tls-creds": "tls0"}}' '{"return": {}}' | sed "s/\"$port\"/PORT/g"
 |  | ||||||
| +_send_qemu_cmd $h2 '{"execute": "block-export-add", "arguments":
 |  | ||||||
| +    {"node-name": "drive_image1", "type": "nbd", "writable": true,
 |  | ||||||
| +      "id": "drive_image1"}}' '{"return": {}}'
 |  | ||||||
| +
 |  | ||||||
| +echo
 |  | ||||||
| +echo === Src VM: Mirror to dst NBD for outgoing storage migration ===
 |  | ||||||
| +echo
 |  | ||||||
| +
 |  | ||||||
| +_send_qemu_cmd $h1 '{"execute": "blockdev-add", "arguments":
 |  | ||||||
| +    {"node-name": "mirror", "driver": "nbd",
 |  | ||||||
| +     "server": {"type": "inet", "host": "127.0.0.1", "port": "'$port'"},
 |  | ||||||
| +     "export": "drive_image1", "tls-creds": "tls0"}}' '{"return": {}}' | sed "s/\"$port\"/PORT/g"
 |  | ||||||
| +_send_qemu_cmd $h1 '{"execute": "blockdev-mirror", "arguments":
 |  | ||||||
| +    {"sync": "full", "device": "drive_image1", "target": "mirror",
 |  | ||||||
| +     "job-id": "drive_image1_53"}}' '{"return": {}}'
 |  | ||||||
| +_timed_wait_for $h1 '"ready"'
 |  | ||||||
| +
 |  | ||||||
| +echo
 |  | ||||||
| +echo === Cleaning up ===
 |  | ||||||
| +echo
 |  | ||||||
| +
 |  | ||||||
| +_send_qemu_cmd $h1 '{"execute":"quit"}' ''
 |  | ||||||
| +_send_qemu_cmd $h2 '{"execute":"quit"}' ''
 |  | ||||||
| +
 |  | ||||||
| +echo "*** done"
 |  | ||||||
| +rm -f $seq.full
 |  | ||||||
| +status=0
 |  | ||||||
| diff --git a/tests/qemu-iotests/tests/nbd-tls-iothread.out b/tests/qemu-iotests/tests/nbd-tls-iothread.out
 |  | ||||||
| new file mode 100644 |  | ||||||
| index 0000000000..a3899fd2d7
 |  | ||||||
| --- /dev/null
 |  | ||||||
| +++ b/tests/qemu-iotests/tests/nbd-tls-iothread.out
 |  | ||||||
| @@ -0,0 +1,53 @@
 |  | ||||||
| +QA output created by nbd-tls-iothread
 |  | ||||||
| +
 |  | ||||||
| +== preparing TLS creds and spare port ==
 |  | ||||||
| +picked unused port
 |  | ||||||
| +Generating a self signed certificate...
 |  | ||||||
| +Generating a signed certificate...
 |  | ||||||
| +Generating a signed certificate...
 |  | ||||||
| +
 |  | ||||||
| +== preparing image ==
 |  | ||||||
| +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824
 |  | ||||||
| +Formatting 'TEST_DIR/dst.IMGFMT', fmt=IMGFMT size=1073741824
 |  | ||||||
| +
 |  | ||||||
| +=== Starting Src QEMU ===
 |  | ||||||
| +
 |  | ||||||
| +{"execute": "qmp_capabilities"}
 |  | ||||||
| +{"return": {}}
 |  | ||||||
| +
 |  | ||||||
| +=== Starting Dst VM2 ===
 |  | ||||||
| +
 |  | ||||||
| +{"execute": "qmp_capabilities"}
 |  | ||||||
| +{"return": {}}
 |  | ||||||
| +
 |  | ||||||
| +=== Dst VM: Enable NBD server for incoming storage migration ===
 |  | ||||||
| +
 |  | ||||||
| +{"execute": "nbd-server-start", "arguments":
 |  | ||||||
| +    {"addr": {"type": "inet", "data": {"host": "127.0.0.1", "port": PORT}},
 |  | ||||||
| +              "tls-creds": "tls0"}}
 |  | ||||||
| +{"return": {}}
 |  | ||||||
| +{"execute": "block-export-add", "arguments":
 |  | ||||||
| +    {"node-name": "drive_image1", "type": "nbd", "writable": true,
 |  | ||||||
| +      "id": "drive_image1"}}
 |  | ||||||
| +{"return": {}}
 |  | ||||||
| +
 |  | ||||||
| +=== Src VM: Mirror to dst NBD for outgoing storage migration ===
 |  | ||||||
| +
 |  | ||||||
| +{"execute": "blockdev-add", "arguments":
 |  | ||||||
| +    {"node-name": "mirror", "driver": "nbd",
 |  | ||||||
| +     "server": {"type": "inet", "host": "127.0.0.1", "port": PORT},
 |  | ||||||
| +     "export": "drive_image1", "tls-creds": "tls0"}}
 |  | ||||||
| +{"return": {}}
 |  | ||||||
| +{"execute": "blockdev-mirror", "arguments":
 |  | ||||||
| +    {"sync": "full", "device": "drive_image1", "target": "mirror",
 |  | ||||||
| +     "job-id": "drive_image1_53"}}
 |  | ||||||
| +{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "drive_image1_53"}}
 |  | ||||||
| +{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "drive_image1_53"}}
 |  | ||||||
| +{"return": {}}
 |  | ||||||
| +{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "ready", "id": "drive_image1_53"}}
 |  | ||||||
| +
 |  | ||||||
| +=== Cleaning up ===
 |  | ||||||
| +
 |  | ||||||
| +{"execute":"quit"}
 |  | ||||||
| +{"execute":"quit"}
 |  | ||||||
| +*** done
 |  | ||||||
| -- 
 |  | ||||||
| 2.39.3 |  | ||||||
| 
 |  | ||||||
| @ -1,101 +0,0 @@ | |||||||
| From 676438ff8c42323c3e5d9e7eeeb1b3367999136c Mon Sep 17 00:00:00 2001 |  | ||||||
| From: Eric Blake <eblake@redhat.com> |  | ||||||
| Date: Thu, 22 Aug 2024 09:35:29 -0500 |  | ||||||
| Subject: [PATCH 3/3] nbd/server: CVE-2024-7409: Avoid use-after-free when |  | ||||||
|  closing server |  | ||||||
| 
 |  | ||||||
| RH-Author: Eric Blake <eblake@redhat.com> |  | ||||||
| RH-MergeRequest: 398: nbd/server: CVE-2024-7409: Avoid use-after-free when closing server |  | ||||||
| RH-Jira: RHEL-52611 |  | ||||||
| RH-Acked-by: Kevin Wolf <kwolf@redhat.com> |  | ||||||
| RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com> |  | ||||||
| RH-Commit: [3/3] 1ee35a40ded067a085bf6fcafa690b40976d7f2d (ebblake/qemu-kvm) |  | ||||||
| 
 |  | ||||||
| Commit 3e7ef738 plugged the use-after-free of the global nbd_server |  | ||||||
| object, but overlooked a use-after-free of nbd_server->listener. |  | ||||||
| Although this race is harder to hit, notice that our shutdown path |  | ||||||
| first drops the reference count of nbd_server->listener, then triggers |  | ||||||
| actions that can result in a pending client reaching the |  | ||||||
| nbd_blockdev_client_closed() callback, which in turn calls |  | ||||||
| qio_net_listener_set_client_func on a potentially stale object. |  | ||||||
| 
 |  | ||||||
| If we know we don't want any more clients to connect, and have already |  | ||||||
| told the listener socket to shut down, then we should not be trying to |  | ||||||
| update the listener socket's associated function. |  | ||||||
| 
 |  | ||||||
| Reproducer: |  | ||||||
| 
 |  | ||||||
| > #!/usr/bin/python3
 |  | ||||||
| > |  | ||||||
| > import os
 |  | ||||||
| > from threading import Thread
 |  | ||||||
| > |  | ||||||
| > def start_stop():
 |  | ||||||
| >     while 1:
 |  | ||||||
| >         os.system('virsh qemu-monitor-command VM \'{"execute": "nbd-server-start",
 |  | ||||||
| +"arguments":{"addr":{"type":"unix","data":{"path":"/tmp/nbd-sock"}}}}\'')
 |  | ||||||
| >         os.system('virsh qemu-monitor-command VM \'{"execute": "nbd-server-stop"}\'')
 |  | ||||||
| > |  | ||||||
| > def nbd_list():
 |  | ||||||
| >     while 1:
 |  | ||||||
| >         os.system('/path/to/build/qemu-nbd -L -k /tmp/nbd-sock')
 |  | ||||||
| > |  | ||||||
| > def test():
 |  | ||||||
| >     sst = Thread(target=start_stop)
 |  | ||||||
| >     sst.start()
 |  | ||||||
| >     nlt = Thread(target=nbd_list)
 |  | ||||||
| >     nlt.start()
 |  | ||||||
| > |  | ||||||
| >     sst.join()
 |  | ||||||
| >     nlt.join()
 |  | ||||||
| > |  | ||||||
| > test()
 |  | ||||||
| 
 |  | ||||||
| Fixes: CVE-2024-7409 |  | ||||||
| Fixes: 3e7ef738c8 ("nbd/server: CVE-2024-7409: Close stray clients at server-stop") |  | ||||||
| CC: qemu-stable@nongnu.org |  | ||||||
| Reported-by: Andrey Drobyshev <andrey.drobyshev@virtuozzo.com> |  | ||||||
| Signed-off-by: Eric Blake <eblake@redhat.com> |  | ||||||
| Message-ID: <20240822143617.800419-2-eblake@redhat.com> |  | ||||||
| Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> |  | ||||||
| 
 |  | ||||||
| (cherry picked from commit 3874f5f73c441c52f1c699c848d463b0eda01e4c) |  | ||||||
| Jira: https://issues.redhat.com/browse/RHEL-52611 |  | ||||||
| Signed-off-by: Eric Blake <eblake@redhat.com> |  | ||||||
| ---
 |  | ||||||
|  blockdev-nbd.c | 12 ++++++++---- |  | ||||||
|  1 file changed, 8 insertions(+), 4 deletions(-) |  | ||||||
| 
 |  | ||||||
| diff --git a/blockdev-nbd.c b/blockdev-nbd.c
 |  | ||||||
| index 87839c180b..b5d55e2518 100644
 |  | ||||||
| --- a/blockdev-nbd.c
 |  | ||||||
| +++ b/blockdev-nbd.c
 |  | ||||||
| @@ -87,10 +87,13 @@ static void nbd_accept(QIONetListener *listener, QIOChannelSocket *cioc,
 |  | ||||||
|   |  | ||||||
|  static void nbd_update_server_watch(NBDServerData *s) |  | ||||||
|  { |  | ||||||
| -    if (!s->max_connections || s->connections < s->max_connections) {
 |  | ||||||
| -        qio_net_listener_set_client_func(s->listener, nbd_accept, NULL, NULL);
 |  | ||||||
| -    } else {
 |  | ||||||
| -        qio_net_listener_set_client_func(s->listener, NULL, NULL, NULL);
 |  | ||||||
| +    if (s->listener) {
 |  | ||||||
| +        if (!s->max_connections || s->connections < s->max_connections) {
 |  | ||||||
| +            qio_net_listener_set_client_func(s->listener, nbd_accept, NULL,
 |  | ||||||
| +                                             NULL);
 |  | ||||||
| +        } else {
 |  | ||||||
| +            qio_net_listener_set_client_func(s->listener, NULL, NULL, NULL);
 |  | ||||||
| +        }
 |  | ||||||
|      } |  | ||||||
|  } |  | ||||||
|   |  | ||||||
| @@ -108,6 +111,7 @@ static void nbd_server_free(NBDServerData *server)
 |  | ||||||
|       */ |  | ||||||
|      qio_net_listener_disconnect(server->listener); |  | ||||||
|      object_unref(OBJECT(server->listener)); |  | ||||||
| +    server->listener = NULL;
 |  | ||||||
|      QLIST_FOREACH_SAFE(conn, &server->conns, next, tmp) { |  | ||||||
|          qio_channel_shutdown(QIO_CHANNEL(conn->cioc), QIO_CHANNEL_SHUTDOWN_BOTH, |  | ||||||
|                               NULL); |  | ||||||
| -- 
 |  | ||||||
| 2.39.3 |  | ||||||
| 
 |  | ||||||
| @ -1,187 +0,0 @@ | |||||||
| From adfddc25c82576458442f61efb913e44d83bcbd0 Mon Sep 17 00:00:00 2001 |  | ||||||
| From: Eric Blake <eblake@redhat.com> |  | ||||||
| Date: Tue, 6 Aug 2024 13:53:00 -0500 |  | ||||||
| Subject: [PATCH 2/5] nbd/server: CVE-2024-7409: Cap default max-connections to |  | ||||||
|  100 |  | ||||||
| MIME-Version: 1.0 |  | ||||||
| Content-Type: text/plain; charset=UTF-8 |  | ||||||
| Content-Transfer-Encoding: 8bit |  | ||||||
| 
 |  | ||||||
| RH-Author: Eric Blake <eblake@redhat.com> |  | ||||||
| RH-MergeRequest: 388: nbd/server: fix CVE-2024-7409 (qemu crash on nbd-server-stop) [rhel-8.10.z] |  | ||||||
| RH-Jira: RHEL-52611 |  | ||||||
| RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com> |  | ||||||
| RH-Acked-by: Richard W.M. Jones <rjones@redhat.com> |  | ||||||
| RH-Commit: [2/4] 1f5d88d5644c46cbb957778254a993930b9d86dc (ebblake/qemu-kvm) |  | ||||||
| 
 |  | ||||||
| Allowing an unlimited number of clients to any web service is a recipe |  | ||||||
| for a rudimentary denial of service attack: the client merely needs to |  | ||||||
| open lots of sockets without closing them, until qemu no longer has |  | ||||||
| any more fds available to allocate. |  | ||||||
| 
 |  | ||||||
| For qemu-nbd, we default to allowing only 1 connection unless more are |  | ||||||
| explicitly asked for (-e or --shared); this was historically picked as |  | ||||||
| a nice default (without an explicit -t, a non-persistent qemu-nbd goes |  | ||||||
| away after a client disconnects, without needing any additional |  | ||||||
| follow-up commands), and we are not going to change that interface now |  | ||||||
| (besides, someday we want to point people towards qemu-storage-daemon |  | ||||||
| instead of qemu-nbd). |  | ||||||
| 
 |  | ||||||
| But for qemu proper, and the newer qemu-storage-daemon, the QMP |  | ||||||
| nbd-server-start command has historically had a default of unlimited |  | ||||||
| number of connections, in part because unlike qemu-nbd it is |  | ||||||
| inherently persistent until nbd-server-stop.  Allowing multiple client |  | ||||||
| sockets is particularly useful for clients that can take advantage of |  | ||||||
| MULTI_CONN (creating parallel sockets to increase throughput), |  | ||||||
| although known clients that do so (such as libnbd's nbdcopy) typically |  | ||||||
| use only 8 or 16 connections (the benefits of scaling diminish once |  | ||||||
| more sockets are competing for kernel attention).  Picking a number |  | ||||||
| large enough for typical use cases, but not unlimited, makes it |  | ||||||
| slightly harder for a malicious client to perform a denial of service |  | ||||||
| merely by opening lots of connections withot progressing through the |  | ||||||
| handshake. |  | ||||||
| 
 |  | ||||||
| This change does not eliminate CVE-2024-7409 on its own, but reduces |  | ||||||
| the chance for fd exhaustion or unlimited memory usage as an attack |  | ||||||
| surface.  On the other hand, by itself, it makes it more obvious that |  | ||||||
| with a finite limit, we have the problem of an unauthenticated client |  | ||||||
| holding 100 fds opened as a way to block out a legitimate client from |  | ||||||
| being able to connect; thus, later patches will further add timeouts |  | ||||||
| to reject clients that are not making progress. |  | ||||||
| 
 |  | ||||||
| This is an INTENTIONAL change in behavior, and will break any client |  | ||||||
| of nbd-server-start that was not passing an explicit max-connections |  | ||||||
| parameter, yet expects more than 100 simultaneous connections.  We are |  | ||||||
| not aware of any such client (as stated above, most clients aware of |  | ||||||
| MULTI_CONN get by just fine on 8 or 16 connections, and probably cope |  | ||||||
| with later connections failing by relying on the earlier connections; |  | ||||||
| libvirt has not yet been passing max-connections, but generally |  | ||||||
| creates NBD servers with the intent for a single client for the sake |  | ||||||
| of live storage migration; meanwhile, the KubeSAN project anticipates |  | ||||||
| a large cluster sharing multiple clients [up to 8 per node, and up to |  | ||||||
| 100 nodes in a cluster], but it currently uses qemu-nbd with an |  | ||||||
| explicit --shared=0 rather than qemu-storage-daemon with |  | ||||||
| nbd-server-start). |  | ||||||
| 
 |  | ||||||
| We considered using a deprecation period (declare that omitting |  | ||||||
| max-parameters is deprecated, and make it mandatory in 3 releases - |  | ||||||
| then we don't need to pick an arbitrary default); that has zero risk |  | ||||||
| of breaking any apps that accidentally depended on more than 100 |  | ||||||
| connections, and where such breakage might not be noticed under unit |  | ||||||
| testing but only under the larger loads of production usage.  But it |  | ||||||
| does not close the denial-of-service hole until far into the future, |  | ||||||
| and requires all apps to change to add the parameter even if 100 was |  | ||||||
| good enough.  It also has a drawback that any app (like libvirt) that |  | ||||||
| is accidentally relying on an unlimited default should seriously |  | ||||||
| consider their own CVE now, at which point they are going to change to |  | ||||||
| pass explicit max-connections sooner than waiting for 3 qemu releases. |  | ||||||
| Finally, if our changed default breaks an app, that app can always |  | ||||||
| pass in an explicit max-parameters with a larger value. |  | ||||||
| 
 |  | ||||||
| It is also intentional that the HMP interface to nbd-server-start is |  | ||||||
| not changed to expose max-connections (any client needing to fine-tune |  | ||||||
| things should be using QMP). |  | ||||||
| 
 |  | ||||||
| Suggested-by: Daniel P. Berrangé <berrange@redhat.com> |  | ||||||
| Signed-off-by: Eric Blake <eblake@redhat.com> |  | ||||||
| Message-ID: <20240807174943.771624-12-eblake@redhat.com> |  | ||||||
| Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> |  | ||||||
| [ericb: Expand commit message to summarize Dan's argument for why we |  | ||||||
| break corner-case back-compat behavior without a deprecation period] |  | ||||||
| Signed-off-by: Eric Blake <eblake@redhat.com> |  | ||||||
| 
 |  | ||||||
| (cherry picked from commit c8a76dbd90c2f48df89b75bef74917f90a59b623) |  | ||||||
| Conflicts: |  | ||||||
| 	qapi/block-export.json - context (no multi-conn, older format) |  | ||||||
| Jira: https://issues.redhat.com/browse/RHEL-52611 |  | ||||||
| Signed-off-by: Eric Blake <eblake@redhat.com> |  | ||||||
| ---
 |  | ||||||
|  block/monitor/block-hmp-cmds.c | 3 ++- |  | ||||||
|  blockdev-nbd.c                 | 8 ++++++++ |  | ||||||
|  include/block/nbd.h            | 7 +++++++ |  | ||||||
|  qapi/block-export.json         | 4 ++-- |  | ||||||
|  4 files changed, 19 insertions(+), 3 deletions(-) |  | ||||||
| 
 |  | ||||||
| diff --git a/block/monitor/block-hmp-cmds.c b/block/monitor/block-hmp-cmds.c
 |  | ||||||
| index 2ac4aedfff..32a666b5dc 100644
 |  | ||||||
| --- a/block/monitor/block-hmp-cmds.c
 |  | ||||||
| +++ b/block/monitor/block-hmp-cmds.c
 |  | ||||||
| @@ -411,7 +411,8 @@ void hmp_nbd_server_start(Monitor *mon, const QDict *qdict)
 |  | ||||||
|          goto exit; |  | ||||||
|      } |  | ||||||
|   |  | ||||||
| -    nbd_server_start(addr, NULL, NULL, 0, &local_err);
 |  | ||||||
| +    nbd_server_start(addr, NULL, NULL, NBD_DEFAULT_MAX_CONNECTIONS,
 |  | ||||||
| +                     &local_err);
 |  | ||||||
|      qapi_free_SocketAddress(addr); |  | ||||||
|      if (local_err != NULL) { |  | ||||||
|          goto exit; |  | ||||||
| diff --git a/blockdev-nbd.c b/blockdev-nbd.c
 |  | ||||||
| index b9e8dc78f3..4bd90bac16 100644
 |  | ||||||
| --- a/blockdev-nbd.c
 |  | ||||||
| +++ b/blockdev-nbd.c
 |  | ||||||
| @@ -171,6 +171,10 @@ void nbd_server_start(SocketAddress *addr, const char *tls_creds,
 |  | ||||||
|   |  | ||||||
|  void nbd_server_start_options(NbdServerOptions *arg, Error **errp) |  | ||||||
|  { |  | ||||||
| +    if (!arg->has_max_connections) {
 |  | ||||||
| +        arg->max_connections = NBD_DEFAULT_MAX_CONNECTIONS;
 |  | ||||||
| +    }
 |  | ||||||
| +
 |  | ||||||
|      nbd_server_start(arg->addr, arg->tls_creds, arg->tls_authz, |  | ||||||
|                       arg->max_connections, errp); |  | ||||||
|  } |  | ||||||
| @@ -183,6 +187,10 @@ void qmp_nbd_server_start(SocketAddressLegacy *addr,
 |  | ||||||
|  { |  | ||||||
|      SocketAddress *addr_flat = socket_address_flatten(addr); |  | ||||||
|   |  | ||||||
| +    if (!has_max_connections) {
 |  | ||||||
| +        max_connections = NBD_DEFAULT_MAX_CONNECTIONS;
 |  | ||||||
| +    }
 |  | ||||||
| +
 |  | ||||||
|      nbd_server_start(addr_flat, tls_creds, tls_authz, max_connections, errp); |  | ||||||
|      qapi_free_SocketAddress(addr_flat); |  | ||||||
|  } |  | ||||||
| diff --git a/include/block/nbd.h b/include/block/nbd.h
 |  | ||||||
| index b71a297249..a31c34a8a6 100644
 |  | ||||||
| --- a/include/block/nbd.h
 |  | ||||||
| +++ b/include/block/nbd.h
 |  | ||||||
| @@ -33,6 +33,13 @@ extern const BlockExportDriver blk_exp_nbd;
 |  | ||||||
|   */ |  | ||||||
|  #define NBD_DEFAULT_HANDSHAKE_MAX_SECS 10 |  | ||||||
|   |  | ||||||
| +/*
 |  | ||||||
| + * NBD_DEFAULT_MAX_CONNECTIONS: Number of client sockets to allow at
 |  | ||||||
| + * once; must be large enough to allow a MULTI_CONN-aware client like
 |  | ||||||
| + * nbdcopy to create its typical number of 8-16 sockets.
 |  | ||||||
| + */
 |  | ||||||
| +#define NBD_DEFAULT_MAX_CONNECTIONS 100
 |  | ||||||
| +
 |  | ||||||
|  /* Handshake phase structs - this struct is passed on the wire */ |  | ||||||
|   |  | ||||||
|  struct NBDOption { |  | ||||||
| diff --git a/qapi/block-export.json b/qapi/block-export.json
 |  | ||||||
| index c1b92ce1c1..181d7238fe 100644
 |  | ||||||
| --- a/qapi/block-export.json
 |  | ||||||
| +++ b/qapi/block-export.json
 |  | ||||||
| @@ -21,7 +21,7 @@
 |  | ||||||
|  #             recreated on the fly while the NBD server is active. |  | ||||||
|  #             If missing, it will default to denying access (since 4.0). |  | ||||||
|  # @max-connections: The maximum number of connections to allow at the same |  | ||||||
| -#                   time, 0 for unlimited. (since 5.2; default: 0)
 |  | ||||||
| +#                   time, 0 for unlimited. (since 5.2; default: 100)
 |  | ||||||
|  # |  | ||||||
|  # Since: 4.2 |  | ||||||
|  ## |  | ||||||
| @@ -50,7 +50,7 @@
 |  | ||||||
|  #             recreated on the fly while the NBD server is active. |  | ||||||
|  #             If missing, it will default to denying access (since 4.0). |  | ||||||
|  # @max-connections: The maximum number of connections to allow at the same |  | ||||||
| -#                   time, 0 for unlimited. (since 5.2; default: 0)
 |  | ||||||
| +#                   time, 0 for unlimited. (since 5.2; default: 100)
 |  | ||||||
|  # |  | ||||||
|  # Returns: error if the server is already running. |  | ||||||
|  # |  | ||||||
| -- 
 |  | ||||||
| 2.39.3 |  | ||||||
| 
 |  | ||||||
| @ -1,180 +0,0 @@ | |||||||
| From 4ab086cdf9a5842c49f3fe59baff1747d863b97a Mon Sep 17 00:00:00 2001 |  | ||||||
| From: Eric Blake <eblake@redhat.com> |  | ||||||
| Date: Wed, 7 Aug 2024 12:23:13 -0500 |  | ||||||
| Subject: [PATCH 4/5] nbd/server: CVE-2024-7409: Close stray clients at |  | ||||||
|  server-stop |  | ||||||
| MIME-Version: 1.0 |  | ||||||
| Content-Type: text/plain; charset=UTF-8 |  | ||||||
| Content-Transfer-Encoding: 8bit |  | ||||||
| 
 |  | ||||||
| RH-Author: Eric Blake <eblake@redhat.com> |  | ||||||
| RH-MergeRequest: 388: nbd/server: fix CVE-2024-7409 (qemu crash on nbd-server-stop) [rhel-8.10.z] |  | ||||||
| RH-Jira: RHEL-52611 |  | ||||||
| RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com> |  | ||||||
| RH-Acked-by: Richard W.M. Jones <rjones@redhat.com> |  | ||||||
| RH-Commit: [4/4] 92a20764dbee3cf94181cab412d90cbf92b4a417 (ebblake/qemu-kvm) |  | ||||||
| 
 |  | ||||||
| A malicious client can attempt to connect to an NBD server, and then |  | ||||||
| intentionally delay progress in the handshake, including if it does |  | ||||||
| not know the TLS secrets.  Although the previous two patches reduce |  | ||||||
| this behavior by capping the default max-connections parameter and |  | ||||||
| killing slow clients, they did not eliminate the possibility of a |  | ||||||
| client waiting to close the socket until after the QMP nbd-server-stop |  | ||||||
| command is executed, at which point qemu would SEGV when trying to |  | ||||||
| dereference the NULL nbd_server global which is no longer present. |  | ||||||
| This amounts to a denial of service attack.  Worse, if another NBD |  | ||||||
| server is started before the malicious client disconnects, I cannot |  | ||||||
| rule out additional adverse effects when the old client interferes |  | ||||||
| with the connection count of the new server (although the most likely |  | ||||||
| is a crash due to an assertion failure when checking |  | ||||||
| nbd_server->connections > 0). |  | ||||||
| 
 |  | ||||||
| For environments without this patch, the CVE can be mitigated by |  | ||||||
| ensuring (such as via a firewall) that only trusted clients can |  | ||||||
| connect to an NBD server.  Note that using frameworks like libvirt |  | ||||||
| that ensure that TLS is used and that nbd-server-stop is not executed |  | ||||||
| while any trusted clients are still connected will only help if there |  | ||||||
| is also no possibility for an untrusted client to open a connection |  | ||||||
| but then stall on the NBD handshake. |  | ||||||
| 
 |  | ||||||
| Given the previous patches, it would be possible to guarantee that no |  | ||||||
| clients remain connected by having nbd-server-stop sleep for longer |  | ||||||
| than the default handshake deadline before finally freeing the global |  | ||||||
| nbd_server object, but that could make QMP non-responsive for a long |  | ||||||
| time.  So intead, this patch fixes the problem by tracking all client |  | ||||||
| sockets opened while the server is running, and forcefully closing any |  | ||||||
| such sockets remaining without a completed handshake at the time of |  | ||||||
| nbd-server-stop, then waiting until the coroutines servicing those |  | ||||||
| sockets notice the state change.  nbd-server-stop now has a second |  | ||||||
| AIO_WAIT_WHILE_UNLOCKED (the first is indirectly through the |  | ||||||
| blk_exp_close_all_type() that disconnects all clients that completed |  | ||||||
| handshakes), but forced socket shutdown is enough to progress the |  | ||||||
| coroutines and quickly tear down all clients before the server is |  | ||||||
| freed, thus finally fixing the CVE. |  | ||||||
| 
 |  | ||||||
| This patch relies heavily on the fact that nbd/server.c guarantees |  | ||||||
| that it only calls nbd_blockdev_client_closed() from the main loop |  | ||||||
| (see the assertion in nbd_client_put() and the hoops used in |  | ||||||
| nbd_client_put_nonzero() to achieve that); if we did not have that |  | ||||||
| guarantee, we would also need a mutex protecting our accesses of the |  | ||||||
| list of connections to survive re-entrancy from independent iothreads. |  | ||||||
| 
 |  | ||||||
| Although I did not actually try to test old builds, it looks like this |  | ||||||
| problem has existed since at least commit 862172f45c (v2.12.0, 2017) - |  | ||||||
| even back when that patch started using a QIONetListener to handle |  | ||||||
| listening on multiple sockets, nbd_server_free() was already unaware |  | ||||||
| that the nbd_blockdev_client_closed callback can be reached later by a |  | ||||||
| client thread that has not completed handshakes (and therefore the |  | ||||||
| client's socket never got added to the list closed in |  | ||||||
| nbd_export_close_all), despite that patch intentionally tearing down |  | ||||||
| the QIONetListener to prevent new clients. |  | ||||||
| 
 |  | ||||||
| Reported-by: Alexander Ivanov <alexander.ivanov@virtuozzo.com> |  | ||||||
| Fixes: CVE-2024-7409 |  | ||||||
| CC: qemu-stable@nongnu.org |  | ||||||
| Signed-off-by: Eric Blake <eblake@redhat.com> |  | ||||||
| Message-ID: <20240807174943.771624-14-eblake@redhat.com> |  | ||||||
| Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> |  | ||||||
| 
 |  | ||||||
| (cherry picked from commit 3e7ef738c8462c45043a1d39f702a0990406a3b3) |  | ||||||
| Conflicts: |  | ||||||
|  - blockdev-nbd.c: |  | ||||||
|    - qemu_in_main_thread() not backported, but only used in assertions so |  | ||||||
|      safe to drop |  | ||||||
|    - AIO_WAIT_WHILE_UNLOCKED() not backported, use AIO_WAIT_WHILE() like |  | ||||||
|      blk_exp_close_all_type() |  | ||||||
| Jira: https://issues.redhat.com/browse/RHEL-52611 |  | ||||||
| Signed-off-by: Eric Blake <eblake@redhat.com> |  | ||||||
| ---
 |  | ||||||
|  blockdev-nbd.c | 35 ++++++++++++++++++++++++++++++++++- |  | ||||||
|  1 file changed, 34 insertions(+), 1 deletion(-) |  | ||||||
| 
 |  | ||||||
| diff --git a/blockdev-nbd.c b/blockdev-nbd.c
 |  | ||||||
| index 4bd90bac16..87839c180b 100644
 |  | ||||||
| --- a/blockdev-nbd.c
 |  | ||||||
| +++ b/blockdev-nbd.c
 |  | ||||||
| @@ -21,12 +21,18 @@
 |  | ||||||
|  #include "io/channel-socket.h" |  | ||||||
|  #include "io/net-listener.h" |  | ||||||
|   |  | ||||||
| +typedef struct NBDConn {
 |  | ||||||
| +    QIOChannelSocket *cioc;
 |  | ||||||
| +    QLIST_ENTRY(NBDConn) next;
 |  | ||||||
| +} NBDConn;
 |  | ||||||
| +
 |  | ||||||
|  typedef struct NBDServerData { |  | ||||||
|      QIONetListener *listener; |  | ||||||
|      QCryptoTLSCreds *tlscreds; |  | ||||||
|      char *tlsauthz; |  | ||||||
|      uint32_t max_connections; |  | ||||||
|      uint32_t connections; |  | ||||||
| +    QLIST_HEAD(, NBDConn) conns;
 |  | ||||||
|  } NBDServerData; |  | ||||||
|   |  | ||||||
|  static NBDServerData *nbd_server; |  | ||||||
| @@ -46,6 +52,14 @@ bool nbd_server_is_running(void)
 |  | ||||||
|   |  | ||||||
|  static void nbd_blockdev_client_closed(NBDClient *client, bool ignored) |  | ||||||
|  { |  | ||||||
| +    NBDConn *conn = nbd_client_owner(client);
 |  | ||||||
| +
 |  | ||||||
| +    assert(nbd_server);
 |  | ||||||
| +
 |  | ||||||
| +    object_unref(OBJECT(conn->cioc));
 |  | ||||||
| +    QLIST_REMOVE(conn, next);
 |  | ||||||
| +    g_free(conn);
 |  | ||||||
| +
 |  | ||||||
|      nbd_client_put(client); |  | ||||||
|      assert(nbd_server->connections > 0); |  | ||||||
|      nbd_server->connections--; |  | ||||||
| @@ -55,14 +69,20 @@ static void nbd_blockdev_client_closed(NBDClient *client, bool ignored)
 |  | ||||||
|  static void nbd_accept(QIONetListener *listener, QIOChannelSocket *cioc, |  | ||||||
|                         gpointer opaque) |  | ||||||
|  { |  | ||||||
| +    NBDConn *conn = g_new0(NBDConn, 1);
 |  | ||||||
| +
 |  | ||||||
| +    assert(nbd_server);
 |  | ||||||
|      nbd_server->connections++; |  | ||||||
| +    object_ref(OBJECT(cioc));
 |  | ||||||
| +    conn->cioc = cioc;
 |  | ||||||
| +    QLIST_INSERT_HEAD(&nbd_server->conns, conn, next);
 |  | ||||||
|      nbd_update_server_watch(nbd_server); |  | ||||||
|   |  | ||||||
|      qio_channel_set_name(QIO_CHANNEL(cioc), "nbd-server"); |  | ||||||
|      /* TODO - expose handshake timeout as QMP option */ |  | ||||||
|      nbd_client_new(cioc, NBD_DEFAULT_HANDSHAKE_MAX_SECS, |  | ||||||
|                     nbd_server->tlscreds, nbd_server->tlsauthz, |  | ||||||
| -                   nbd_blockdev_client_closed, NULL);
 |  | ||||||
| +                   nbd_blockdev_client_closed, conn);
 |  | ||||||
|  } |  | ||||||
|   |  | ||||||
|  static void nbd_update_server_watch(NBDServerData *s) |  | ||||||
| @@ -76,12 +96,25 @@ static void nbd_update_server_watch(NBDServerData *s)
 |  | ||||||
|   |  | ||||||
|  static void nbd_server_free(NBDServerData *server) |  | ||||||
|  { |  | ||||||
| +    NBDConn *conn, *tmp;
 |  | ||||||
| +
 |  | ||||||
|      if (!server) { |  | ||||||
|          return; |  | ||||||
|      } |  | ||||||
|   |  | ||||||
| +    /*
 |  | ||||||
| +     * Forcefully close the listener socket, and any clients that have
 |  | ||||||
| +     * not yet disconnected on their own.
 |  | ||||||
| +     */
 |  | ||||||
|      qio_net_listener_disconnect(server->listener); |  | ||||||
|      object_unref(OBJECT(server->listener)); |  | ||||||
| +    QLIST_FOREACH_SAFE(conn, &server->conns, next, tmp) {
 |  | ||||||
| +        qio_channel_shutdown(QIO_CHANNEL(conn->cioc), QIO_CHANNEL_SHUTDOWN_BOTH,
 |  | ||||||
| +                             NULL);
 |  | ||||||
| +    }
 |  | ||||||
| +
 |  | ||||||
| +    AIO_WAIT_WHILE(NULL, server->connections > 0);
 |  | ||||||
| +
 |  | ||||||
|      if (server->tlscreds) { |  | ||||||
|          object_unref(OBJECT(server->tlscreds)); |  | ||||||
|      } |  | ||||||
| -- 
 |  | ||||||
| 2.39.3 |  | ||||||
| 
 |  | ||||||
| @ -1,135 +0,0 @@ | |||||||
| From faac5261d5a9af155950c4e7779c5a4721562824 Mon Sep 17 00:00:00 2001 |  | ||||||
| From: Eric Blake <eblake@redhat.com> |  | ||||||
| Date: Thu, 8 Aug 2024 16:05:08 -0500 |  | ||||||
| Subject: [PATCH 3/5] nbd/server: CVE-2024-7409: Drop non-negotiating clients |  | ||||||
| MIME-Version: 1.0 |  | ||||||
| Content-Type: text/plain; charset=UTF-8 |  | ||||||
| Content-Transfer-Encoding: 8bit |  | ||||||
| 
 |  | ||||||
| RH-Author: Eric Blake <eblake@redhat.com> |  | ||||||
| RH-MergeRequest: 388: nbd/server: fix CVE-2024-7409 (qemu crash on nbd-server-stop) [rhel-8.10.z] |  | ||||||
| RH-Jira: RHEL-52611 |  | ||||||
| RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com> |  | ||||||
| RH-Acked-by: Richard W.M. Jones <rjones@redhat.com> |  | ||||||
| RH-Commit: [3/4] 8c39829f8efbded9af018a4b915af266a55a793a (ebblake/qemu-kvm) |  | ||||||
| 
 |  | ||||||
| A client that opens a socket but does not negotiate is merely hogging |  | ||||||
| qemu's resources (an open fd and a small amount of memory); and a |  | ||||||
| malicious client that can access the port where NBD is listening can |  | ||||||
| attempt a denial of service attack by intentionally opening and |  | ||||||
| abandoning lots of unfinished connections.  The previous patch put a |  | ||||||
| default bound on the number of such ongoing connections, but once that |  | ||||||
| limit is hit, no more clients can connect (including legitimate ones). |  | ||||||
| The solution is to insist that clients complete handshake within a |  | ||||||
| reasonable time limit, defaulting to 10 seconds.  A client that has |  | ||||||
| not successfully completed NBD_OPT_GO by then (including the case of |  | ||||||
| where the client didn't know TLS credentials to even reach the point |  | ||||||
| of NBD_OPT_GO) is wasting our time and does not deserve to stay |  | ||||||
| connected.  Later patches will allow fine-tuning the limit away from |  | ||||||
| the default value (including disabling it for doing integration |  | ||||||
| testing of the handshake process itself). |  | ||||||
| 
 |  | ||||||
| Note that this patch in isolation actually makes it more likely to see |  | ||||||
| qemu SEGV after nbd-server-stop, as any client socket still connected |  | ||||||
| when the server shuts down will now be closed after 10 seconds rather |  | ||||||
| than at the client's whims.  That will be addressed in the next patch. |  | ||||||
| 
 |  | ||||||
| For a demo of this patch in action: |  | ||||||
| $ qemu-nbd -f raw -r -t -e 10 file & |  | ||||||
| $ nbdsh --opt-mode -c ' |  | ||||||
| H = list() |  | ||||||
| for i in range(20): |  | ||||||
|   print(i) |  | ||||||
|   H.insert(i, nbd.NBD()) |  | ||||||
|   H[i].set_opt_mode(True) |  | ||||||
|   H[i].connect_uri("nbd://localhost") |  | ||||||
| ' |  | ||||||
| $ kill $! |  | ||||||
| 
 |  | ||||||
| where later connections get to start progressing once earlier ones are |  | ||||||
| forcefully dropped for taking too long, rather than hanging. |  | ||||||
| 
 |  | ||||||
| Suggested-by: Daniel P. Berrangé <berrange@redhat.com> |  | ||||||
| Signed-off-by: Eric Blake <eblake@redhat.com> |  | ||||||
| Message-ID: <20240807174943.771624-13-eblake@redhat.com> |  | ||||||
| Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> |  | ||||||
| [eblake: rebase to changes earlier in series, reduce scope of timer] |  | ||||||
| Signed-off-by: Eric Blake <eblake@redhat.com> |  | ||||||
| 
 |  | ||||||
| (cherry picked from commit b9b72cb3ce15b693148bd09cef7e50110566d8a0) |  | ||||||
| Conflicts: |  | ||||||
| 	nbd/server.c - context with different aiocontext locking |  | ||||||
|         nbd/trace-events - context with no client-connection.c |  | ||||||
| Jira: https://issues.redhat.com/browse/RHEL-52611 |  | ||||||
| Signed-off-by: Eric Blake <eblake@redhat.com> |  | ||||||
| ---
 |  | ||||||
|  nbd/server.c     | 28 +++++++++++++++++++++++++++- |  | ||||||
|  nbd/trace-events |  1 + |  | ||||||
|  2 files changed, 28 insertions(+), 1 deletion(-) |  | ||||||
| 
 |  | ||||||
| diff --git a/nbd/server.c b/nbd/server.c
 |  | ||||||
| index cc1b6838bf..1265068f70 100644
 |  | ||||||
| --- a/nbd/server.c
 |  | ||||||
| +++ b/nbd/server.c
 |  | ||||||
| @@ -2701,22 +2701,48 @@ static void nbd_client_receive_next_request(NBDClient *client)
 |  | ||||||
|      } |  | ||||||
|  } |  | ||||||
|   |  | ||||||
| +static void nbd_handshake_timer_cb(void *opaque)
 |  | ||||||
| +{
 |  | ||||||
| +    QIOChannel *ioc = opaque;
 |  | ||||||
| +
 |  | ||||||
| +    trace_nbd_handshake_timer_cb();
 |  | ||||||
| +    qio_channel_shutdown(ioc, QIO_CHANNEL_SHUTDOWN_BOTH, NULL);
 |  | ||||||
| +}
 |  | ||||||
| +
 |  | ||||||
|  static coroutine_fn void nbd_co_client_start(void *opaque) |  | ||||||
|  { |  | ||||||
|      NBDClient *client = opaque; |  | ||||||
|      Error *local_err = NULL; |  | ||||||
| +    QEMUTimer *handshake_timer = NULL;
 |  | ||||||
|   |  | ||||||
|      qemu_co_mutex_init(&client->send_lock); |  | ||||||
|   |  | ||||||
| -    /* TODO - utilize client->handshake_max_secs */
 |  | ||||||
| +    /*
 |  | ||||||
| +     * Create a timer to bound the time spent in negotiation. If the
 |  | ||||||
| +     * timer expires, it is likely nbd_negotiate will fail because the
 |  | ||||||
| +     * socket was shutdown.
 |  | ||||||
| +     */
 |  | ||||||
| +    if (client->handshake_max_secs > 0) {
 |  | ||||||
| +        handshake_timer = aio_timer_new(qemu_get_aio_context(),
 |  | ||||||
| +                                        QEMU_CLOCK_REALTIME,
 |  | ||||||
| +                                        SCALE_NS,
 |  | ||||||
| +                                        nbd_handshake_timer_cb,
 |  | ||||||
| +                                        client->sioc);
 |  | ||||||
| +        timer_mod(handshake_timer,
 |  | ||||||
| +                  qemu_clock_get_ns(QEMU_CLOCK_REALTIME) +
 |  | ||||||
| +                  client->handshake_max_secs * NANOSECONDS_PER_SECOND);
 |  | ||||||
| +    }
 |  | ||||||
| +
 |  | ||||||
|      if (nbd_negotiate(client, &local_err)) { |  | ||||||
|          if (local_err) { |  | ||||||
|              error_report_err(local_err); |  | ||||||
|          } |  | ||||||
| +        timer_free(handshake_timer);
 |  | ||||||
|          client_close(client, false); |  | ||||||
|          return; |  | ||||||
|      } |  | ||||||
|   |  | ||||||
| +    timer_free(handshake_timer);
 |  | ||||||
|      nbd_client_receive_next_request(client); |  | ||||||
|  } |  | ||||||
|   |  | ||||||
| diff --git a/nbd/trace-events b/nbd/trace-events
 |  | ||||||
| index c4919a2dd5..553546f1f2 100644
 |  | ||||||
| --- a/nbd/trace-events
 |  | ||||||
| +++ b/nbd/trace-events
 |  | ||||||
| @@ -73,3 +73,4 @@ nbd_co_receive_request_decode_type(uint64_t handle, uint16_t type, const char *n
 |  | ||||||
|  nbd_co_receive_request_payload_received(uint64_t handle, uint32_t len) "Payload received: handle = %" PRIu64 ", len = %" PRIu32 |  | ||||||
|  nbd_co_receive_align_compliance(const char *op, uint64_t from, uint32_t len, uint32_t align) "client sent non-compliant unaligned %s request: from=0x%" PRIx64 ", len=0x%" PRIx32 ", align=0x%" PRIx32 |  | ||||||
|  nbd_trip(void) "Reading request" |  | ||||||
| +nbd_handshake_timer_cb(void) "client took too long to negotiate"
 |  | ||||||
| -- 
 |  | ||||||
| 2.39.3 |  | ||||||
| 
 |  | ||||||
| @ -1,161 +0,0 @@ | |||||||
| From 00af174d1388ed2d2df7961ee78be6af3757a01c Mon Sep 17 00:00:00 2001 |  | ||||||
| From: Eric Blake <eblake@redhat.com> |  | ||||||
| Date: Wed, 30 Aug 2023 18:48:02 -0400 |  | ||||||
| Subject: [PATCH 1/3] nbd/server: Favor qemu_aio_context over iohandler context |  | ||||||
| 
 |  | ||||||
| RH-Author: Eric Blake <eblake@redhat.com> |  | ||||||
| RH-MergeRequest: 398: nbd/server: CVE-2024-7409: Avoid use-after-free when closing server |  | ||||||
| RH-Jira: RHEL-52611 |  | ||||||
| RH-Acked-by: Kevin Wolf <kwolf@redhat.com> |  | ||||||
| RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com> |  | ||||||
| RH-Commit: [1/3] 6ec0ef287fbc976175da83a0c14d9878e83affa2 (ebblake/qemu-kvm) |  | ||||||
| 
 |  | ||||||
| DOWNSTREAM ONLY - but based on an idea originally included as a |  | ||||||
| side-effect in the larger upstream patch 06e0f098 "io: follow |  | ||||||
| coroutine AioContext in qio_channel_yield()", as well as handling the |  | ||||||
| state of the qio TLS channel before it is associated with a block |  | ||||||
| device as an alternative to 199e84de "qio: Inherit |  | ||||||
| follow_coroutine_ctx across TLS". |  | ||||||
| 
 |  | ||||||
| The NBD server code wants to use qio_channel_shutdown() followed by |  | ||||||
| AIO_WAIT_WHILE() during nbd_server_free(), but cannot attach the ioc |  | ||||||
| to an AioContext until the client has completed the handshake to the |  | ||||||
| point that the server knows what block device to associate with the |  | ||||||
| connection.  The qio code is set up to handle connections with no |  | ||||||
| AioContext in the iohandler context, but this context is specifically |  | ||||||
| designed to NOT make progress during AIO_WAIT_WHILE().  In order to |  | ||||||
| prevent things from deadlocking, the qio channels handling NBD |  | ||||||
| handshake MUST be in the qemu_aio_context, so that an early shutdown |  | ||||||
| triggered by nbd-server-stop can make progress. |  | ||||||
| 
 |  | ||||||
| Note that upstream handled the main qio channel by the use of |  | ||||||
| qio_channel_set_follow_coroutine_ctx() in only one place in |  | ||||||
| nbd/server.c; upstream handled the TLS channel by a more generic |  | ||||||
| second patch that taught qio TLS channel to inherit the |  | ||||||
| follow_coroutine_ctx status from its parent.  But since this patch is |  | ||||||
| already downstream only, the minimal diff is achieved by manually |  | ||||||
| setting the status of the TLS channel in NBD code, rather than |  | ||||||
| backporting the qio inheritance code.  For testing that the second |  | ||||||
| call to qio_channel_set_favor_qemu_aio_ctx() matters, I used this test |  | ||||||
| setup (borrowing a pre-built PSK file for username alice from the |  | ||||||
| libnbd project, and using IPv4 since this qemu is too old to support |  | ||||||
| TLS over Unix sockets): |  | ||||||
| 
 |  | ||||||
| $ # in terminal 1: |  | ||||||
| $ qemu-system-x86_64 --nographic --nodefaults --qmp stdio \ |  | ||||||
|   --object tls-creds-psk,id=tls0,dir=/PATHTO/libnbd/tests,endpoint=server |  | ||||||
| {"execute": "qmp_capabilities"} |  | ||||||
| {"execute":"nbd-server-start","arguments":{"addr":{"type":"inet", |  | ||||||
|   "data":{"host":"127.0.0.1","port":"10809"}},"tls-creds":"tls0"}} |  | ||||||
| 
 |  | ||||||
| $ # in terminal 2: |  | ||||||
| $ nbdsh -c 'h.set_uri_allow_local_file(True)' --opt-mode -u \ |  | ||||||
|   'nbds://alice@127.0.0.1/?tls-psk-file=/PATHTO/libnbd/tests/keys.psk' \ |  | ||||||
|   -c 'import time; time.sleep(15)' |  | ||||||
| 
 |  | ||||||
| $ # in terminal 1, before 10 seconds elapse |  | ||||||
| {"execute":"nbd-server-stop"} |  | ||||||
| {"execute":"quit"} |  | ||||||
| 
 |  | ||||||
| and observed that, when omitting the one-line TLS setting, qemu would |  | ||||||
| hit the same deadlock with a TLS client as what I was observing for a |  | ||||||
| non-TLS client without this entire patch. |  | ||||||
| 
 |  | ||||||
| Jira: https://issues.redhat.com/browse/RHEL-52611 |  | ||||||
| Suggested-by: Kevin Wolf <kwolf@redhat.com> |  | ||||||
| Signed-off-by: Eric Blake <eblake@redhat.com> |  | ||||||
| ---
 |  | ||||||
|  include/io/channel.h | 16 ++++++++++++++++ |  | ||||||
|  io/channel.c         | 14 +++++++++++++- |  | ||||||
|  nbd/server.c         |  2 ++ |  | ||||||
|  3 files changed, 31 insertions(+), 1 deletion(-) |  | ||||||
| 
 |  | ||||||
| diff --git a/include/io/channel.h b/include/io/channel.h
 |  | ||||||
| index 716235d496..f1ce19ea81 100644
 |  | ||||||
| --- a/include/io/channel.h
 |  | ||||||
| +++ b/include/io/channel.h
 |  | ||||||
| @@ -84,6 +84,7 @@ struct QIOChannel {
 |  | ||||||
|      AioContext *ctx; |  | ||||||
|      Coroutine *read_coroutine; |  | ||||||
|      Coroutine *write_coroutine; |  | ||||||
| +    bool favor_qemu_aio_ctx;
 |  | ||||||
|  #ifdef _WIN32 |  | ||||||
|      HANDLE event; /* For use with GSource on Win32 */ |  | ||||||
|  #endif |  | ||||||
| @@ -498,6 +499,21 @@ int qio_channel_set_blocking(QIOChannel *ioc,
 |  | ||||||
|                               bool enabled, |  | ||||||
|                               Error **errp); |  | ||||||
|   |  | ||||||
| +/**
 |  | ||||||
| + * qio_channel_set_favor_qemu_aio_ctx:
 |  | ||||||
| + * @ioc: the channel object
 |  | ||||||
| + * @enabled: whether to fall back to qemu_aio_context
 |  | ||||||
| + *
 |  | ||||||
| + * If @enabled is true, calls to qio_channel_yield() with no AioContext
 |  | ||||||
| + * set use the qemu_aio_context instead of the global iohandler context.
 |  | ||||||
| + *
 |  | ||||||
| + * If @enabled is false, calls to qio_channel_yield() use the global iohandler
 |  | ||||||
| + * AioContext. This is may be used by coroutines that run in the main loop and
 |  | ||||||
| + * do not wish to respond to I/O during nested event loops. This is the
 |  | ||||||
| + * default for compatibility with code that is not aware of AioContexts.
 |  | ||||||
| + */
 |  | ||||||
| +void qio_channel_set_favor_qemu_aio_ctx(QIOChannel *ioc, bool enabled);
 |  | ||||||
| +
 |  | ||||||
|  /** |  | ||||||
|   * qio_channel_close: |  | ||||||
|   * @ioc: the channel object |  | ||||||
| diff --git a/io/channel.c b/io/channel.c
 |  | ||||||
| index a8c7f11649..74704d0464 100644
 |  | ||||||
| --- a/io/channel.c
 |  | ||||||
| +++ b/io/channel.c
 |  | ||||||
| @@ -364,6 +364,12 @@ int qio_channel_set_blocking(QIOChannel *ioc,
 |  | ||||||
|  } |  | ||||||
|   |  | ||||||
|   |  | ||||||
| +void qio_channel_set_favor_qemu_aio_ctx(QIOChannel *ioc, bool enabled)
 |  | ||||||
| +{
 |  | ||||||
| +    ioc->favor_qemu_aio_ctx = enabled;
 |  | ||||||
| +}
 |  | ||||||
| +
 |  | ||||||
| +
 |  | ||||||
|  int qio_channel_close(QIOChannel *ioc, |  | ||||||
|                        Error **errp) |  | ||||||
|  { |  | ||||||
| @@ -545,7 +551,13 @@ static void qio_channel_set_aio_fd_handlers(QIOChannel *ioc)
 |  | ||||||
|          wr_handler = qio_channel_restart_write; |  | ||||||
|      } |  | ||||||
|   |  | ||||||
| -    ctx = ioc->ctx ? ioc->ctx : iohandler_get_aio_context();
 |  | ||||||
| +    if (ioc->ctx) {
 |  | ||||||
| +        ctx = ioc->ctx;
 |  | ||||||
| +    } else if (ioc->favor_qemu_aio_ctx) {
 |  | ||||||
| +        ctx = qemu_get_aio_context();
 |  | ||||||
| +    } else {
 |  | ||||||
| +        ctx = iohandler_get_aio_context();
 |  | ||||||
| +    }
 |  | ||||||
|      qio_channel_set_aio_fd_handler(ioc, ctx, rd_handler, wr_handler, ioc); |  | ||||||
|  } |  | ||||||
|   |  | ||||||
| diff --git a/nbd/server.c b/nbd/server.c
 |  | ||||||
| index 1265068f70..41a2003300 100644
 |  | ||||||
| --- a/nbd/server.c
 |  | ||||||
| +++ b/nbd/server.c
 |  | ||||||
| @@ -758,6 +758,7 @@ static QIOChannel *nbd_negotiate_handle_starttls(NBDClient *client,
 |  | ||||||
|          return NULL; |  | ||||||
|      } |  | ||||||
|   |  | ||||||
| +    qio_channel_set_favor_qemu_aio_ctx(QIO_CHANNEL(tioc), true);
 |  | ||||||
|      qio_channel_set_name(QIO_CHANNEL(tioc), "nbd-server-tls"); |  | ||||||
|      trace_nbd_negotiate_handle_starttls_handshake(); |  | ||||||
|      data.loop = g_main_loop_new(g_main_context_default(), FALSE); |  | ||||||
| @@ -1333,6 +1334,7 @@ static coroutine_fn int nbd_negotiate(NBDClient *client, Error **errp)
 |  | ||||||
|       */ |  | ||||||
|   |  | ||||||
|      qio_channel_set_blocking(client->ioc, false, NULL); |  | ||||||
| +    qio_channel_set_favor_qemu_aio_ctx(client->ioc, true);
 |  | ||||||
|   |  | ||||||
|      trace_nbd_negotiate_begin(); |  | ||||||
|      memcpy(buf, "NBDMAGIC", 8); |  | ||||||
| -- 
 |  | ||||||
| 2.39.3 |  | ||||||
| 
 |  | ||||||
| @ -1,174 +0,0 @@ | |||||||
| From 0d204cb81aec2b13254a0bd53938f53bfea81cb5 Mon Sep 17 00:00:00 2001 |  | ||||||
| From: Eric Blake <eblake@redhat.com> |  | ||||||
| Date: Wed, 7 Aug 2024 08:50:01 -0500 |  | ||||||
| Subject: [PATCH 1/5] nbd/server: Plumb in new args to nbd_client_add() |  | ||||||
| MIME-Version: 1.0 |  | ||||||
| Content-Type: text/plain; charset=UTF-8 |  | ||||||
| Content-Transfer-Encoding: 8bit |  | ||||||
| 
 |  | ||||||
| RH-Author: Eric Blake <eblake@redhat.com> |  | ||||||
| RH-MergeRequest: 388: nbd/server: fix CVE-2024-7409 (qemu crash on nbd-server-stop) [rhel-8.10.z] |  | ||||||
| RH-Jira: RHEL-52611 |  | ||||||
| RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com> |  | ||||||
| RH-Acked-by: Richard W.M. Jones <rjones@redhat.com> |  | ||||||
| RH-Commit: [1/4] 292be8dd2df2a840b2200e31a27e9d17fdab91ad (ebblake/qemu-kvm) |  | ||||||
| 
 |  | ||||||
| Upcoming patches to fix a CVE need to track an opaque pointer passed |  | ||||||
| in by the owner of a client object, as well as request for a time |  | ||||||
| limit on how fast negotiation must complete.  Prepare for that by |  | ||||||
| changing the signature of nbd_client_new() and adding an accessor to |  | ||||||
| get at the opaque pointer, although for now the two servers |  | ||||||
| (qemu-nbd.c and blockdev-nbd.c) do not change behavior even though |  | ||||||
| they pass in a new default timeout value. |  | ||||||
| 
 |  | ||||||
| Suggested-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru> |  | ||||||
| Signed-off-by: Eric Blake <eblake@redhat.com> |  | ||||||
| Message-ID: <20240807174943.771624-11-eblake@redhat.com> |  | ||||||
| Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> |  | ||||||
| [eblake: s/LIMIT/MAX_SECS/ as suggested by Dan] |  | ||||||
| Signed-off-by: Eric Blake <eblake@redhat.com> |  | ||||||
| 
 |  | ||||||
| (cherry picked from commit fb1c2aaa981e0a2fa6362c9985f1296b74f055ac) |  | ||||||
| Jira: https://issues.redhat.com/browse/RHEL-52611 |  | ||||||
| Signed-off-by: Eric Blake <eblake@redhat.com> |  | ||||||
| ---
 |  | ||||||
|  blockdev-nbd.c      |  6 ++++-- |  | ||||||
|  include/block/nbd.h | 11 ++++++++++- |  | ||||||
|  nbd/server.c        | 20 +++++++++++++++++--- |  | ||||||
|  qemu-nbd.c          |  4 +++- |  | ||||||
|  4 files changed, 34 insertions(+), 7 deletions(-) |  | ||||||
| 
 |  | ||||||
| diff --git a/blockdev-nbd.c b/blockdev-nbd.c
 |  | ||||||
| index bdfa7ed3a5..b9e8dc78f3 100644
 |  | ||||||
| --- a/blockdev-nbd.c
 |  | ||||||
| +++ b/blockdev-nbd.c
 |  | ||||||
| @@ -59,8 +59,10 @@ static void nbd_accept(QIONetListener *listener, QIOChannelSocket *cioc,
 |  | ||||||
|      nbd_update_server_watch(nbd_server); |  | ||||||
|   |  | ||||||
|      qio_channel_set_name(QIO_CHANNEL(cioc), "nbd-server"); |  | ||||||
| -    nbd_client_new(cioc, nbd_server->tlscreds, nbd_server->tlsauthz,
 |  | ||||||
| -                   nbd_blockdev_client_closed);
 |  | ||||||
| +    /* TODO - expose handshake timeout as QMP option */
 |  | ||||||
| +    nbd_client_new(cioc, NBD_DEFAULT_HANDSHAKE_MAX_SECS,
 |  | ||||||
| +                   nbd_server->tlscreds, nbd_server->tlsauthz,
 |  | ||||||
| +                   nbd_blockdev_client_closed, NULL);
 |  | ||||||
|  } |  | ||||||
|   |  | ||||||
|  static void nbd_update_server_watch(NBDServerData *s) |  | ||||||
| diff --git a/include/block/nbd.h b/include/block/nbd.h
 |  | ||||||
| index 78d101b774..b71a297249 100644
 |  | ||||||
| --- a/include/block/nbd.h
 |  | ||||||
| +++ b/include/block/nbd.h
 |  | ||||||
| @@ -27,6 +27,12 @@
 |  | ||||||
|   |  | ||||||
|  extern const BlockExportDriver blk_exp_nbd; |  | ||||||
|   |  | ||||||
| +/*
 |  | ||||||
| + * NBD_DEFAULT_HANDSHAKE_MAX_SECS: Number of seconds in which client must
 |  | ||||||
| + * succeed at NBD_OPT_GO before being forcefully dropped as too slow.
 |  | ||||||
| + */
 |  | ||||||
| +#define NBD_DEFAULT_HANDSHAKE_MAX_SECS 10
 |  | ||||||
| +
 |  | ||||||
|  /* Handshake phase structs - this struct is passed on the wire */ |  | ||||||
|   |  | ||||||
|  struct NBDOption { |  | ||||||
| @@ -338,9 +344,12 @@ AioContext *nbd_export_aio_context(NBDExport *exp);
 |  | ||||||
|  NBDExport *nbd_export_find(const char *name); |  | ||||||
|   |  | ||||||
|  void nbd_client_new(QIOChannelSocket *sioc, |  | ||||||
| +                    uint32_t handshake_max_secs,
 |  | ||||||
|                      QCryptoTLSCreds *tlscreds, |  | ||||||
|                      const char *tlsauthz, |  | ||||||
| -                    void (*close_fn)(NBDClient *, bool));
 |  | ||||||
| +                    void (*close_fn)(NBDClient *, bool),
 |  | ||||||
| +                    void *owner);
 |  | ||||||
| +void *nbd_client_owner(NBDClient *client);
 |  | ||||||
|  void nbd_client_get(NBDClient *client); |  | ||||||
|  void nbd_client_put(NBDClient *client); |  | ||||||
|   |  | ||||||
| diff --git a/nbd/server.c b/nbd/server.c
 |  | ||||||
| index 6db124cf53..cc1b6838bf 100644
 |  | ||||||
| --- a/nbd/server.c
 |  | ||||||
| +++ b/nbd/server.c
 |  | ||||||
| @@ -120,10 +120,12 @@ typedef struct NBDExportMetaContexts {
 |  | ||||||
|  struct NBDClient { |  | ||||||
|      int refcount; |  | ||||||
|      void (*close_fn)(NBDClient *client, bool negotiated); |  | ||||||
| +    void *owner;
 |  | ||||||
|   |  | ||||||
|      NBDExport *exp; |  | ||||||
|      QCryptoTLSCreds *tlscreds; |  | ||||||
|      char *tlsauthz; |  | ||||||
| +    uint32_t handshake_max_secs;
 |  | ||||||
|      QIOChannelSocket *sioc; /* The underlying data channel */ |  | ||||||
|      QIOChannel *ioc; /* The current I/O channel which may differ (eg TLS) */ |  | ||||||
|   |  | ||||||
| @@ -2706,6 +2708,7 @@ static coroutine_fn void nbd_co_client_start(void *opaque)
 |  | ||||||
|   |  | ||||||
|      qemu_co_mutex_init(&client->send_lock); |  | ||||||
|   |  | ||||||
| +    /* TODO - utilize client->handshake_max_secs */
 |  | ||||||
|      if (nbd_negotiate(client, &local_err)) { |  | ||||||
|          if (local_err) { |  | ||||||
|              error_report_err(local_err); |  | ||||||
| @@ -2718,14 +2721,17 @@ static coroutine_fn void nbd_co_client_start(void *opaque)
 |  | ||||||
|  } |  | ||||||
|   |  | ||||||
|  /* |  | ||||||
| - * Create a new client listener using the given channel @sioc.
 |  | ||||||
| + * Create a new client listener using the given channel @sioc and @owner.
 |  | ||||||
|   * Begin servicing it in a coroutine.  When the connection closes, call |  | ||||||
| - * @close_fn with an indication of whether the client completed negotiation.
 |  | ||||||
| + * @close_fn with an indication of whether the client completed negotiation
 |  | ||||||
| + * within @handshake_max_secs seconds (0 for unbounded).
 |  | ||||||
|   */ |  | ||||||
|  void nbd_client_new(QIOChannelSocket *sioc, |  | ||||||
| +                    uint32_t handshake_max_secs,
 |  | ||||||
|                      QCryptoTLSCreds *tlscreds, |  | ||||||
|                      const char *tlsauthz, |  | ||||||
| -                    void (*close_fn)(NBDClient *, bool))
 |  | ||||||
| +                    void (*close_fn)(NBDClient *, bool),
 |  | ||||||
| +                    void *owner)
 |  | ||||||
|  { |  | ||||||
|      NBDClient *client; |  | ||||||
|      Coroutine *co; |  | ||||||
| @@ -2737,13 +2743,21 @@ void nbd_client_new(QIOChannelSocket *sioc,
 |  | ||||||
|          object_ref(OBJECT(client->tlscreds)); |  | ||||||
|      } |  | ||||||
|      client->tlsauthz = g_strdup(tlsauthz); |  | ||||||
| +    client->handshake_max_secs = handshake_max_secs;
 |  | ||||||
|      client->sioc = sioc; |  | ||||||
|      qio_channel_set_delay(QIO_CHANNEL(sioc), false); |  | ||||||
|      object_ref(OBJECT(client->sioc)); |  | ||||||
|      client->ioc = QIO_CHANNEL(sioc); |  | ||||||
|      object_ref(OBJECT(client->ioc)); |  | ||||||
|      client->close_fn = close_fn; |  | ||||||
| +    client->owner = owner;
 |  | ||||||
|   |  | ||||||
|      co = qemu_coroutine_create(nbd_co_client_start, client); |  | ||||||
|      qemu_coroutine_enter(co); |  | ||||||
|  } |  | ||||||
| +
 |  | ||||||
| +void *
 |  | ||||||
| +nbd_client_owner(NBDClient *client)
 |  | ||||||
| +{
 |  | ||||||
| +    return client->owner;
 |  | ||||||
| +}
 |  | ||||||
| diff --git a/qemu-nbd.c b/qemu-nbd.c
 |  | ||||||
| index c6c20df68a..f48abf379e 100644
 |  | ||||||
| --- a/qemu-nbd.c
 |  | ||||||
| +++ b/qemu-nbd.c
 |  | ||||||
| @@ -363,7 +363,9 @@ static void nbd_accept(QIONetListener *listener, QIOChannelSocket *cioc,
 |  | ||||||
|   |  | ||||||
|      nb_fds++; |  | ||||||
|      nbd_update_server_watch(); |  | ||||||
| -    nbd_client_new(cioc, tlscreds, tlsauthz, nbd_client_closed);
 |  | ||||||
| +    /* TODO - expose handshake timeout as command line option */
 |  | ||||||
| +    nbd_client_new(cioc, NBD_DEFAULT_HANDSHAKE_MAX_SECS,
 |  | ||||||
| +                   tlscreds, tlsauthz, nbd_client_closed, NULL);
 |  | ||||||
|  } |  | ||||||
|   |  | ||||||
|  static void nbd_update_server_watch(void) |  | ||||||
| -- 
 |  | ||||||
| 2.39.3 |  | ||||||
| 
 |  | ||||||
| @ -1,209 +0,0 @@ | |||||||
| From 5cdbc87ab24a8cc4cf926158ec429d43d8a45f15 Mon Sep 17 00:00:00 2001 |  | ||||||
| From: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| Date: Wed, 5 Jun 2024 19:56:51 -0400 |  | ||||||
| Subject: [PATCH 1/5] qcow2: Don't open data_file with BDRV_O_NO_IO |  | ||||||
| MIME-Version: 1.0 |  | ||||||
| Content-Type: text/plain; charset=UTF-8 |  | ||||||
| Content-Transfer-Encoding: 8bit |  | ||||||
| 
 |  | ||||||
| RH-Author: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| RH-MergeRequest: 5: EMBARGOED CVE-2024-4467 for rhel-8.10.z (PRDSC) |  | ||||||
| RH-Jira: RHEL-35616 |  | ||||||
| RH-CVE: CVE-2024-4467 |  | ||||||
| RH-Acked-by: Kevin Wolf <kwolf@redhat.com> |  | ||||||
| RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com> |  | ||||||
| RH-Commit: [1/5] 2e72d21c14d86645cf68eec78f49d5cc5d77581f |  | ||||||
| 
 |  | ||||||
| Conflicts: qcow2_do_open(): missing boolean ´open_data_file'. |  | ||||||
|            We assume it to be true. |  | ||||||
| 
 |  | ||||||
| commit f9843ce5c519901654a7d8ba43ee95ce25ca13c2 |  | ||||||
| Author: Kevin Wolf <kwolf@redhat.com> |  | ||||||
| Date:   Thu Apr 11 15:06:01 2024 +0200 |  | ||||||
| 
 |  | ||||||
|     qcow2: Don't open data_file with BDRV_O_NO_IO |  | ||||||
| 
 |  | ||||||
|     One use case for 'qemu-img info' is verifying that untrusted images |  | ||||||
|     don't reference an unwanted external file, be it as a backing file or an |  | ||||||
|     external data file. To make sure that calling 'qemu-img info' can't |  | ||||||
|     already have undesired side effects with a malicious image, just don't |  | ||||||
|     open the data file at all with BDRV_O_NO_IO. If nothing ever tries to do |  | ||||||
|     I/O, we don't need to have it open. |  | ||||||
| 
 |  | ||||||
|     This changes the output of iotests case 061, which used 'qemu-img info' |  | ||||||
|     to show that opening an image with an invalid data file fails. After |  | ||||||
|     this patch, it succeeds. Replace this part of the test with a qemu-io |  | ||||||
|     call, but keep the final 'qemu-img info' to show that the invalid data |  | ||||||
|     file is correctly displayed in the output. |  | ||||||
| 
 |  | ||||||
|     Signed-off-by: Kevin Wolf <kwolf@redhat.com> |  | ||||||
|     Reviewed-by: Eric Blake <eblake@redhat.com> |  | ||||||
|     Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> |  | ||||||
|     Reviewed-by: Hanna Czenczek <hreitz@redhat.com> |  | ||||||
|     Upstream: N/A, embargoed |  | ||||||
|     Signed-off-by: Hanna Czenczek <hreitz@redhat.com> |  | ||||||
| 
 |  | ||||||
| Signed-off-by: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| ---
 |  | ||||||
|  block/qcow2.c              | 87 +++++++++++++++++++++++--------------- |  | ||||||
|  tests/qemu-iotests/061     |  6 ++- |  | ||||||
|  tests/qemu-iotests/061.out |  8 +++- |  | ||||||
|  3 files changed, 62 insertions(+), 39 deletions(-) |  | ||||||
| 
 |  | ||||||
| diff --git a/block/qcow2.c b/block/qcow2.c
 |  | ||||||
| index d509016756..6ee1919612 100644
 |  | ||||||
| --- a/block/qcow2.c
 |  | ||||||
| +++ b/block/qcow2.c
 |  | ||||||
| @@ -1613,50 +1613,67 @@ static int coroutine_fn qcow2_do_open(BlockDriverState *bs, QDict *options,
 |  | ||||||
|          goto fail; |  | ||||||
|      } |  | ||||||
|   |  | ||||||
| -    /* Open external data file */
 |  | ||||||
| -    s->data_file = bdrv_open_child(NULL, options, "data-file", bs,
 |  | ||||||
| -                                   &child_of_bds, BDRV_CHILD_DATA,
 |  | ||||||
| -                                   true, errp);
 |  | ||||||
| -    if (*errp) {
 |  | ||||||
| -        ret = -EINVAL;
 |  | ||||||
| -        goto fail;
 |  | ||||||
| -    }
 |  | ||||||
| +    if (flags & BDRV_O_NO_IO) {
 |  | ||||||
| +        /*
 |  | ||||||
| +         * Don't open the data file for 'qemu-img info' so that it can be used
 |  | ||||||
| +         * to verify that an untrusted qcow2 image doesn't refer to external
 |  | ||||||
| +         * files.
 |  | ||||||
| +         *
 |  | ||||||
| +         * Note: This still makes has_data_file() return true.
 |  | ||||||
| +         */
 |  | ||||||
| +        if (s->incompatible_features & QCOW2_INCOMPAT_DATA_FILE) {
 |  | ||||||
| +            s->data_file = NULL;
 |  | ||||||
| +        } else {
 |  | ||||||
| +            s->data_file = bs->file;
 |  | ||||||
| +        }
 |  | ||||||
| +        qdict_extract_subqdict(options, NULL, "data-file.");
 |  | ||||||
| +        qdict_del(options, "data-file");
 |  | ||||||
| +    } else {
 |  | ||||||
| +        /* Open external data file */
 |  | ||||||
| +        s->data_file = bdrv_open_child(NULL, options, "data-file", bs,
 |  | ||||||
| +                                       &child_of_bds, BDRV_CHILD_DATA,
 |  | ||||||
| +                                       true, errp);
 |  | ||||||
| +        if (*errp) {
 |  | ||||||
| +            ret = -EINVAL;
 |  | ||||||
| +            goto fail;
 |  | ||||||
| +        }
 |  | ||||||
|   |  | ||||||
| -    if (s->incompatible_features & QCOW2_INCOMPAT_DATA_FILE) {
 |  | ||||||
| -        if (!s->data_file && s->image_data_file) {
 |  | ||||||
| -            s->data_file = bdrv_open_child(s->image_data_file, options,
 |  | ||||||
| -                                           "data-file", bs, &child_of_bds,
 |  | ||||||
| -                                           BDRV_CHILD_DATA, false, errp);
 |  | ||||||
| +        if (s->incompatible_features & QCOW2_INCOMPAT_DATA_FILE) {
 |  | ||||||
| +            if (!s->data_file && s->image_data_file) {
 |  | ||||||
| +                s->data_file = bdrv_open_child(s->image_data_file, options,
 |  | ||||||
| +                                               "data-file", bs, &child_of_bds,
 |  | ||||||
| +                                               BDRV_CHILD_DATA, false, errp);
 |  | ||||||
| +                if (!s->data_file) {
 |  | ||||||
| +                    ret = -EINVAL;
 |  | ||||||
| +                    goto fail;
 |  | ||||||
| +                }
 |  | ||||||
| +            }
 |  | ||||||
|              if (!s->data_file) { |  | ||||||
| +                error_setg(errp, "'data-file' is required for this image");
 |  | ||||||
|                  ret = -EINVAL; |  | ||||||
|                  goto fail; |  | ||||||
|              } |  | ||||||
| -        }
 |  | ||||||
| -        if (!s->data_file) {
 |  | ||||||
| -            error_setg(errp, "'data-file' is required for this image");
 |  | ||||||
| -            ret = -EINVAL;
 |  | ||||||
| -            goto fail;
 |  | ||||||
| -        }
 |  | ||||||
|   |  | ||||||
| -        /* No data here */
 |  | ||||||
| -        bs->file->role &= ~BDRV_CHILD_DATA;
 |  | ||||||
| +            /* No data here */
 |  | ||||||
| +            bs->file->role &= ~BDRV_CHILD_DATA;
 |  | ||||||
|   |  | ||||||
| -        /* Must succeed because we have given up permissions if anything */
 |  | ||||||
| -        bdrv_child_refresh_perms(bs, bs->file, &error_abort);
 |  | ||||||
| -    } else {
 |  | ||||||
| -        if (s->data_file) {
 |  | ||||||
| -            error_setg(errp, "'data-file' can only be set for images with an "
 |  | ||||||
| -                             "external data file");
 |  | ||||||
| -            ret = -EINVAL;
 |  | ||||||
| -            goto fail;
 |  | ||||||
| -        }
 |  | ||||||
| +            /* Must succeed because we have given up permissions if anything */
 |  | ||||||
| +            bdrv_child_refresh_perms(bs, bs->file, &error_abort);
 |  | ||||||
| +        } else {
 |  | ||||||
| +            if (s->data_file) {
 |  | ||||||
| +                error_setg(errp, "'data-file' can only be set for images with an "
 |  | ||||||
| +                           "external data file");
 |  | ||||||
| +                ret = -EINVAL;
 |  | ||||||
| +                goto fail;
 |  | ||||||
| +            }
 |  | ||||||
|   |  | ||||||
| -        s->data_file = bs->file;
 |  | ||||||
| +            s->data_file = bs->file;
 |  | ||||||
|   |  | ||||||
| -        if (data_file_is_raw(bs)) {
 |  | ||||||
| -            error_setg(errp, "data-file-raw requires a data file");
 |  | ||||||
| -            ret = -EINVAL;
 |  | ||||||
| -            goto fail;
 |  | ||||||
| +            if (data_file_is_raw(bs)) {
 |  | ||||||
| +                error_setg(errp, "data-file-raw requires a data file");
 |  | ||||||
| +                ret = -EINVAL;
 |  | ||||||
| +                goto fail;
 |  | ||||||
| +            }
 |  | ||||||
|          } |  | ||||||
|      } |  | ||||||
|   |  | ||||||
| diff --git a/tests/qemu-iotests/061 b/tests/qemu-iotests/061
 |  | ||||||
| index 9507c223bd..6a5bd47efc 100755
 |  | ||||||
| --- a/tests/qemu-iotests/061
 |  | ||||||
| +++ b/tests/qemu-iotests/061
 |  | ||||||
| @@ -322,12 +322,14 @@ $QEMU_IMG amend -o "data_file=foo" "$TEST_IMG"
 |  | ||||||
|  echo |  | ||||||
|  _make_test_img -o "compat=1.1,data_file=$TEST_IMG.data" 64M |  | ||||||
|  $QEMU_IMG amend -o "data_file=foo" "$TEST_IMG" |  | ||||||
| -_img_info --format-specific
 |  | ||||||
| +$QEMU_IO -c "read 0 4k" "$TEST_IMG" 2>&1 | _filter_testdir | _filter_imgfmt
 |  | ||||||
| +$QEMU_IO -c "open -o data-file.filename=$TEST_IMG.data,file.filename=$TEST_IMG" -c "read 0 4k" | _filter_qemu_io
 |  | ||||||
|  TEST_IMG="data-file.filename=$TEST_IMG.data,file.filename=$TEST_IMG" _img_info --format-specific --image-opts |  | ||||||
|   |  | ||||||
|  echo |  | ||||||
|  $QEMU_IMG amend -o "data_file=" --image-opts "data-file.filename=$TEST_IMG.data,file.filename=$TEST_IMG" |  | ||||||
| -_img_info --format-specific
 |  | ||||||
| +$QEMU_IO -c "read 0 4k" "$TEST_IMG" 2>&1 | _filter_testdir | _filter_imgfmt
 |  | ||||||
| +$QEMU_IO -c "open -o data-file.filename=$TEST_IMG.data,file.filename=$TEST_IMG" -c "read 0 4k" | _filter_qemu_io
 |  | ||||||
|  TEST_IMG="data-file.filename=$TEST_IMG.data,file.filename=$TEST_IMG" _img_info --format-specific --image-opts |  | ||||||
|   |  | ||||||
|  echo |  | ||||||
| diff --git a/tests/qemu-iotests/061.out b/tests/qemu-iotests/061.out
 |  | ||||||
| index 7ecbd4dea8..99b2307a23 100644
 |  | ||||||
| --- a/tests/qemu-iotests/061.out
 |  | ||||||
| +++ b/tests/qemu-iotests/061.out
 |  | ||||||
| @@ -545,7 +545,9 @@ Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
 |  | ||||||
|  qemu-img: data-file can only be set for images that use an external data file |  | ||||||
|   |  | ||||||
|  Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 data_file=TEST_DIR/t.IMGFMT.data |  | ||||||
| -qemu-img: Could not open 'TEST_DIR/t.IMGFMT': Could not open 'foo': No such file or directory
 |  | ||||||
| +qemu-io: can't open device TEST_DIR/t.IMGFMT: Could not open 'foo': No such file or directory
 |  | ||||||
| +read 4096/4096 bytes at offset 0
 |  | ||||||
| +4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 |  | ||||||
|  image: TEST_DIR/t.IMGFMT |  | ||||||
|  file format: IMGFMT |  | ||||||
|  virtual size: 64 MiB (67108864 bytes) |  | ||||||
| @@ -560,7 +562,9 @@ Format specific information:
 |  | ||||||
|      corrupt: false |  | ||||||
|      extended l2: false |  | ||||||
|   |  | ||||||
| -qemu-img: Could not open 'TEST_DIR/t.IMGFMT': 'data-file' is required for this image
 |  | ||||||
| +qemu-io: can't open device TEST_DIR/t.IMGFMT: 'data-file' is required for this image
 |  | ||||||
| +read 4096/4096 bytes at offset 0
 |  | ||||||
| +4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 |  | ||||||
|  image: TEST_DIR/t.IMGFMT |  | ||||||
|  file format: IMGFMT |  | ||||||
|  virtual size: 64 MiB (67108864 bytes) |  | ||||||
| -- 
 |  | ||||||
| 2.39.3 |  | ||||||
| 
 |  | ||||||
| @ -1,94 +0,0 @@ | |||||||
| From 661c0fee958d993b5c8d4600998ba0fdbf43da11 Mon Sep 17 00:00:00 2001 |  | ||||||
| From: Konstantin Kostiuk <kkostiuk@redhat.com> |  | ||||||
| Date: Wed, 18 Dec 2024 18:49:04 +0200 |  | ||||||
| Subject: [PATCH] qga: skip bind mounts in fs list |  | ||||||
| 
 |  | ||||||
| RH-Author: Konstantin Kostiuk <None> |  | ||||||
| RH-MergeRequest: 423: qga: skip bind mounts in fs list |  | ||||||
| RH-Jira: RHEL-59214 |  | ||||||
| RH-Acked-by: yvugenfi <None> |  | ||||||
| RH-Acked-by: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| RH-Commit: [1/1] 2ebf2a4dba0e2da9d077c116accd12dc7f3dbcd1 |  | ||||||
| 
 |  | ||||||
| The filesystem list in build_fs_mount_list should skip bind mounts. |  | ||||||
| This because we end up in locking situations when doing fsFreeze. Like |  | ||||||
| mentioned in [1] and [2]. |  | ||||||
| 
 |  | ||||||
| Next to that, the build_fs_mount_list call did a fallback via |  | ||||||
| build_fs_mount_list_from_mtab if mountinfo did not exist. |  | ||||||
| There it skipped bind mounts, but this is broken for newer OS. |  | ||||||
| This as mounts does not return the path of the bind mount but the |  | ||||||
| underlying dev/partition, so S_ISDIR will never return true in |  | ||||||
| dev_major_minor call. |  | ||||||
| 
 |  | ||||||
| This patch simply checks the existing devmajor:devminor tuple in the |  | ||||||
| mounts, and if it already exists, this means we have the same devices |  | ||||||
| mounted again, a bind mount. So skip this. |  | ||||||
| 
 |  | ||||||
| Same approach is used in open-vm-tools [3]. |  | ||||||
| 
 |  | ||||||
| [1]: https://gitlab.com/qemu-project/qemu/-/issues/592 |  | ||||||
| [2]: https://gitlab.com/qemu-project/qemu/-/issues/520 |  | ||||||
| [3]: https://github.com/vmware/open-vm-tools/commit/d58847b497e212737007958c945af1df22a8ab58 |  | ||||||
| 
 |  | ||||||
| Signed-off-by: Jean-Louis Dupond <jean-louis@dupond.be> |  | ||||||
| Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> |  | ||||||
| Link: https://lore.kernel.org/r/20241002100634.162499-2-jean-louis@dupond.be |  | ||||||
| Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com> |  | ||||||
| ---
 |  | ||||||
|  qga/commands-posix.c | 25 +++++++++++++++++++++++++ |  | ||||||
|  1 file changed, 25 insertions(+) |  | ||||||
| 
 |  | ||||||
| diff --git a/qga/commands-posix.c b/qga/commands-posix.c
 |  | ||||||
| index 75dbaab68e..dce0d1551f 100644
 |  | ||||||
| --- a/qga/commands-posix.c
 |  | ||||||
| +++ b/qga/commands-posix.c
 |  | ||||||
| @@ -668,6 +668,22 @@ static int dev_major_minor(const char *devpath,
 |  | ||||||
|      return -1; |  | ||||||
|  } |  | ||||||
|   |  | ||||||
| +/*
 |  | ||||||
| + * Check if we already have the devmajor:devminor in the mounts
 |  | ||||||
| + * If thats the case return true.
 |  | ||||||
| + */
 |  | ||||||
| +static bool dev_exists(FsMountList *mounts, unsigned int devmajor, unsigned int devminor)
 |  | ||||||
| +{
 |  | ||||||
| +    FsMount *mount;
 |  | ||||||
| +
 |  | ||||||
| +    QTAILQ_FOREACH(mount, mounts, next) {
 |  | ||||||
| +        if (mount->devmajor == devmajor && mount->devminor == devminor) {
 |  | ||||||
| +            return true;
 |  | ||||||
| +        }
 |  | ||||||
| +    }
 |  | ||||||
| +    return false;
 |  | ||||||
| +}
 |  | ||||||
| +
 |  | ||||||
|  /* |  | ||||||
|   * Walk the mount table and build a list of local file systems |  | ||||||
|   */ |  | ||||||
| @@ -701,6 +717,10 @@ static void build_fs_mount_list_from_mtab(FsMountList *mounts, Error **errp)
 |  | ||||||
|              /* Skip bind mounts */ |  | ||||||
|              continue; |  | ||||||
|          } |  | ||||||
| +        if (dev_exists(mounts, devmajor, devminor)) {
 |  | ||||||
| +            /* Skip already existing devices (bind mounts) */
 |  | ||||||
| +            continue;
 |  | ||||||
| +        }
 |  | ||||||
|   |  | ||||||
|          mount = g_new0(FsMount, 1); |  | ||||||
|          mount->dirname = g_strdup(ment->mnt_dir); |  | ||||||
| @@ -780,6 +800,11 @@ static void build_fs_mount_list(FsMountList *mounts, Error **errp)
 |  | ||||||
|                  continue; |  | ||||||
|              } |  | ||||||
|          } |  | ||||||
| +        
 |  | ||||||
| +        if (dev_exists(mounts, devmajor, devminor)) {
 |  | ||||||
| +            /* Skip already existing devices (bind mounts) */
 |  | ||||||
| +            continue;
 |  | ||||||
| +        }
 |  | ||||||
|   |  | ||||||
|          mount = g_new0(FsMount, 1); |  | ||||||
|          mount->dirname = g_strdup(line + dir_s); |  | ||||||
| -- 
 |  | ||||||
| 2.47.1 |  | ||||||
| 
 |  | ||||||
| @ -1,52 +0,0 @@ | |||||||
| From 1c0887f9a108a237fc87834c87e9d0358dd98dd9 Mon Sep 17 00:00:00 2001 |  | ||||||
| From: Thomas Huth <thuth@redhat.com> |  | ||||||
| Date: Wed, 23 Apr 2025 12:54:42 +0200 |  | ||||||
| Subject: [PATCH 5/5] redhat: Adjust indentation in qapi/machine-target.json |  | ||||||
|  for QEMU v6.2 |  | ||||||
| MIME-Version: 1.0 |  | ||||||
| Content-Type: text/plain; charset=UTF-8 |  | ||||||
| Content-Transfer-Encoding: 8bit |  | ||||||
| 
 |  | ||||||
| RH-Author: Thomas Huth <thuth@redhat.com> |  | ||||||
| RH-MergeRequest: 449: Fix for live-migrating guests from IBM z16 to z17 host machines |  | ||||||
| RH-Jira: RHEL-88701 |  | ||||||
| RH-Acked-by: Cédric Le Goater <clg@redhat.com> |  | ||||||
| RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com> |  | ||||||
| RH-Commit: [5/5] 1a50aac42e2b8e2990f5a00f69117a58911c8107 |  | ||||||
| 
 |  | ||||||
| Upstream Status: RHEL-only |  | ||||||
| JIRA: https://issues.redhat.com/browse/RHEL-88701 |  | ||||||
| 
 |  | ||||||
| The QAPI parser of QEMU v6.2 is stricter with the indentation rules, |  | ||||||
| so we have to adjust the indentation with the colon of the previous |  | ||||||
| line here. |  | ||||||
| 
 |  | ||||||
| Signed-off-by: Thomas Huth <thuth@redhat.com> |  | ||||||
| ---
 |  | ||||||
|  qapi/machine-target.json | 10 +++++----- |  | ||||||
|  1 file changed, 5 insertions(+), 5 deletions(-) |  | ||||||
| 
 |  | ||||||
| diff --git a/qapi/machine-target.json b/qapi/machine-target.json
 |  | ||||||
| index 320688cd21..415e0fc3c6 100644
 |  | ||||||
| --- a/qapi/machine-target.json
 |  | ||||||
| +++ b/qapi/machine-target.json
 |  | ||||||
| @@ -210,11 +210,11 @@
 |  | ||||||
|  # @model: the expanded CpuModelInfo. |  | ||||||
|  # |  | ||||||
|  # @deprecated-props: a list of properties that are flagged as deprecated |  | ||||||
| -#     by the CPU vendor.  The list depends on the CpuModelExpansionType:
 |  | ||||||
| -#     "static" properties are a subset of the enabled-properties for
 |  | ||||||
| -#     the expanded model; "full" properties are a set of properties
 |  | ||||||
| -#     that are deprecated across all models for the architecture.
 |  | ||||||
| -#     (since: 9.1).
 |  | ||||||
| +#                    by the CPU vendor.  The list depends on the CpuModelExpansionType:
 |  | ||||||
| +#                    "static" properties are a subset of the enabled-properties for
 |  | ||||||
| +#                    the expanded model; "full" properties are a set of properties
 |  | ||||||
| +#                    that are deprecated across all models for the architecture.
 |  | ||||||
| +#                    (since: 9.1).
 |  | ||||||
|  # |  | ||||||
|  # Since: 2.8 |  | ||||||
|  ## |  | ||||||
| -- 
 |  | ||||||
| 2.48.1 |  | ||||||
| 
 |  | ||||||
| @ -1,110 +0,0 @@ | |||||||
| From 31c0a5fb90575b85dc9510417d6b8317319d0b57 Mon Sep 17 00:00:00 2001 |  | ||||||
| From: Collin Walling <walling@linux.ibm.com> |  | ||||||
| Date: Fri, 19 Jul 2024 14:17:41 -0400 |  | ||||||
| Subject: [PATCH 3/5] target/s390x: filter deprecated properties based on model |  | ||||||
|  expansion type |  | ||||||
| MIME-Version: 1.0 |  | ||||||
| Content-Type: text/plain; charset=UTF-8 |  | ||||||
| Content-Transfer-Encoding: 8bit |  | ||||||
| 
 |  | ||||||
| RH-Author: Thomas Huth <thuth@redhat.com> |  | ||||||
| RH-MergeRequest: 449: Fix for live-migrating guests from IBM z16 to z17 host machines |  | ||||||
| RH-Jira: RHEL-88701 |  | ||||||
| RH-Acked-by: Cédric Le Goater <clg@redhat.com> |  | ||||||
| RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com> |  | ||||||
| RH-Commit: [3/5] dd1889f1de28aa4c40df34fcad7898dc600374fd |  | ||||||
| 
 |  | ||||||
| Currently, there is no way to execute the query-cpu-model-expansion |  | ||||||
| command to retrieve a comprehenisve list of deprecated properties, as |  | ||||||
| the result is dependent per-model. To enable this, the expansion output |  | ||||||
| is modified as such: |  | ||||||
| 
 |  | ||||||
| When reporting a "full" CPU model, show the *entire* list of deprecated |  | ||||||
| properties regardless if they are supported on the model. A full |  | ||||||
| expansion outputs all known CPU model properties anyway, so it makes |  | ||||||
| sense to report all deprecated properties here too. |  | ||||||
| 
 |  | ||||||
| This allows management apps to query a single model (e.g. host) to |  | ||||||
| acquire the full list of deprecated properties. |  | ||||||
| 
 |  | ||||||
| Additionally, when reporting a "static" CPU model, the command will |  | ||||||
| only show deprecated properties that are a subset of the model's |  | ||||||
| *enabled* properties. This is more accurate than how the query was |  | ||||||
| handled before, which blindly reported deprecated properties that |  | ||||||
| were never otherwise introduced for certain models. |  | ||||||
| 
 |  | ||||||
| Acked-by: David Hildenbrand <david@redhat.com> |  | ||||||
| Suggested-by: Jiri Denemark <jdenemar@redhat.com> |  | ||||||
| Signed-off-by: Collin Walling <walling@linux.ibm.com> |  | ||||||
| Message-ID: <20240719181741.35146-1-walling@linux.ibm.com> |  | ||||||
| Signed-off-by: Thomas Huth <thuth@redhat.com> |  | ||||||
| (cherry picked from commit eed0e8ffa38f0695c0519508f6e4f5a3297cbd67) |  | ||||||
| ---
 |  | ||||||
|  qapi/machine-target.json         |  5 +++-- |  | ||||||
|  target/s390x/cpu_models_sysemu.c | 16 +++++++++------- |  | ||||||
|  2 files changed, 12 insertions(+), 9 deletions(-) |  | ||||||
| 
 |  | ||||||
| diff --git a/qapi/machine-target.json b/qapi/machine-target.json
 |  | ||||||
| index c93c811dbc..d32dc6958f 100644
 |  | ||||||
| --- a/qapi/machine-target.json
 |  | ||||||
| +++ b/qapi/machine-target.json
 |  | ||||||
| @@ -18,8 +18,9 @@
 |  | ||||||
|  # @props: a dictionary of QOM properties to be applied |  | ||||||
|  # |  | ||||||
|  # @deprecated-props: a list of properties that are flagged as deprecated |  | ||||||
| -#     by the CPU vendor.  These props are a subset of the full model's
 |  | ||||||
| -#     definition list of properties. (since 9.1)
 |  | ||||||
| +#     by the CPU vendor.  These properties are either a subset of the
 |  | ||||||
| +#     properties enabled on the CPU model, or a set of properties
 |  | ||||||
| +#     deprecated across all models for the architecture.
 |  | ||||||
|  # |  | ||||||
|  # Since: 2.8 |  | ||||||
|  ## |  | ||||||
| diff --git a/target/s390x/cpu_models_sysemu.c b/target/s390x/cpu_models_sysemu.c
 |  | ||||||
| index 7ed94b4117..edb81769cd 100644
 |  | ||||||
| --- a/target/s390x/cpu_models_sysemu.c
 |  | ||||||
| +++ b/target/s390x/cpu_models_sysemu.c
 |  | ||||||
| @@ -183,11 +183,15 @@ static void cpu_info_from_model(CpuModelInfo *info, const S390CPUModel *model,
 |  | ||||||
|                                  bool delta_changes) |  | ||||||
|  { |  | ||||||
|      QDict *qdict = qdict_new(); |  | ||||||
| -    S390FeatBitmap bitmap;
 |  | ||||||
| +    S390FeatBitmap bitmap, deprecated;
 |  | ||||||
|   |  | ||||||
|      /* always fallback to the static base model */ |  | ||||||
|      info->name = g_strdup_printf("%s-base", model->def->name); |  | ||||||
|   |  | ||||||
| +    /* features flagged as deprecated */
 |  | ||||||
| +    bitmap_zero(deprecated, S390_FEAT_MAX);
 |  | ||||||
| +    s390_get_deprecated_features(deprecated);
 |  | ||||||
| +
 |  | ||||||
|      if (delta_changes) { |  | ||||||
|          /* features deleted from the base feature set */ |  | ||||||
|          bitmap_andnot(bitmap, model->def->base_feat, model->features, |  | ||||||
| @@ -202,6 +206,9 @@ static void cpu_info_from_model(CpuModelInfo *info, const S390CPUModel *model,
 |  | ||||||
|          if (!bitmap_empty(bitmap, S390_FEAT_MAX)) { |  | ||||||
|              s390_feat_bitmap_to_ascii(bitmap, qdict, qdict_add_enabled_feat); |  | ||||||
|          } |  | ||||||
| +
 |  | ||||||
| +        /* deprecated features that are a subset of the model's enabled features */
 |  | ||||||
| +        bitmap_and(deprecated, deprecated, model->features, S390_FEAT_MAX);
 |  | ||||||
|      } else { |  | ||||||
|          /* expand all features */ |  | ||||||
|          s390_feat_bitmap_to_ascii(model->features, qdict, |  | ||||||
| @@ -217,12 +224,7 @@ static void cpu_info_from_model(CpuModelInfo *info, const S390CPUModel *model,
 |  | ||||||
|          info->has_props = true; |  | ||||||
|      } |  | ||||||
|   |  | ||||||
| -    /* features flagged as deprecated */
 |  | ||||||
| -    bitmap_zero(bitmap, S390_FEAT_MAX);
 |  | ||||||
| -    s390_get_deprecated_features(bitmap);
 |  | ||||||
| -
 |  | ||||||
| -    bitmap_and(bitmap, bitmap, model->def->full_feat, S390_FEAT_MAX);
 |  | ||||||
| -    s390_feat_bitmap_to_ascii(bitmap, &info->deprecated_props, list_add_feat);
 |  | ||||||
| +    s390_feat_bitmap_to_ascii(deprecated, &info->deprecated_props, list_add_feat);
 |  | ||||||
|      info->has_deprecated_props = !!info->deprecated_props; |  | ||||||
|  } |  | ||||||
|   |  | ||||||
| -- 
 |  | ||||||
| 2.48.1 |  | ||||||
| 
 |  | ||||||
| @ -1,44 +0,0 @@ | |||||||
| From a851c0768ce192035014cce72d231a8df62dc011 Mon Sep 17 00:00:00 2001 |  | ||||||
| From: Collin Walling <walling@linux.ibm.com> |  | ||||||
| Date: Mon, 29 Apr 2024 15:10:59 -0400 |  | ||||||
| Subject: [PATCH 2/5] target/s390x: flag te and cte as deprecated |  | ||||||
| MIME-Version: 1.0 |  | ||||||
| Content-Type: text/plain; charset=UTF-8 |  | ||||||
| Content-Transfer-Encoding: 8bit |  | ||||||
| 
 |  | ||||||
| RH-Author: Thomas Huth <thuth@redhat.com> |  | ||||||
| RH-MergeRequest: 449: Fix for live-migrating guests from IBM z16 to z17 host machines |  | ||||||
| RH-Jira: RHEL-88701 |  | ||||||
| RH-Acked-by: Cédric Le Goater <clg@redhat.com> |  | ||||||
| RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com> |  | ||||||
| RH-Commit: [2/5] d00d9654126596e31603ddec04ede4227b982739 |  | ||||||
| 
 |  | ||||||
| Add the CONSTRAINT_TRANSACTIONAL_EXE (cte) and TRANSACTIONAL_EXE (te) |  | ||||||
| to the list of deprecated features. |  | ||||||
| 
 |  | ||||||
| Signed-off-by: Collin Walling <walling@linux.ibm.com> |  | ||||||
| Reviewed-by: David Hildenbrand <david@redhat.com> |  | ||||||
| Message-ID: <20240429191059.11806-3-walling@linux.ibm.com> |  | ||||||
| Signed-off-by: Thomas Huth <thuth@redhat.com> |  | ||||||
| (cherry picked from commit 6e55b32d45976a8e78cbd3bbdf6ed1148cb2662a) |  | ||||||
| ---
 |  | ||||||
|  target/s390x/cpu_features.c | 3 +++ |  | ||||||
|  1 file changed, 3 insertions(+) |  | ||||||
| 
 |  | ||||||
| diff --git a/target/s390x/cpu_features.c b/target/s390x/cpu_features.c
 |  | ||||||
| index 40be75c90a..59f1d6d81e 100644
 |  | ||||||
| --- a/target/s390x/cpu_features.c
 |  | ||||||
| +++ b/target/s390x/cpu_features.c
 |  | ||||||
| @@ -218,6 +218,9 @@ void s390_get_deprecated_features(S390FeatBitmap features)
 |  | ||||||
|           /* CSSKE is deprecated on newer generations */ |  | ||||||
|           S390_FEAT_CONDITIONAL_SSKE, |  | ||||||
|           S390_FEAT_BPB, |  | ||||||
| +         /* Deprecated on z16 */
 |  | ||||||
| +         S390_FEAT_CONSTRAINT_TRANSACTIONAL_EXE,
 |  | ||||||
| +         S390_FEAT_TRANSACTIONAL_EXE
 |  | ||||||
|      }; |  | ||||||
|      int i; |  | ||||||
|   |  | ||||||
| -- 
 |  | ||||||
| 2.48.1 |  | ||||||
| 
 |  | ||||||
| @ -1,163 +0,0 @@ | |||||||
| From 1142610383e66712cfa4d11cc02d7661f68d7193 Mon Sep 17 00:00:00 2001 |  | ||||||
| From: Collin Walling <walling@linux.ibm.com> |  | ||||||
| Date: Fri, 26 Jul 2024 16:36:46 -0400 |  | ||||||
| Subject: [PATCH 4/5] target/s390x: move @deprecated-props to CpuModelExpansion |  | ||||||
|  Info |  | ||||||
| MIME-Version: 1.0 |  | ||||||
| Content-Type: text/plain; charset=UTF-8 |  | ||||||
| Content-Transfer-Encoding: 8bit |  | ||||||
| 
 |  | ||||||
| RH-Author: Thomas Huth <thuth@redhat.com> |  | ||||||
| RH-MergeRequest: 449: Fix for live-migrating guests from IBM z16 to z17 host machines |  | ||||||
| RH-Jira: RHEL-88701 |  | ||||||
| RH-Acked-by: Cédric Le Goater <clg@redhat.com> |  | ||||||
| RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com> |  | ||||||
| RH-Commit: [4/5] 2c66f3000c44742b02d1cd4b64e3d091b4be05cb |  | ||||||
| 
 |  | ||||||
| CpuModelInfo is used both as command argument and in command |  | ||||||
| returns. |  | ||||||
| 
 |  | ||||||
| Its @deprecated-props array does not make any sense in arguments, |  | ||||||
| and is silently ignored.  We actually want it only as return value |  | ||||||
| of query-cpu-model-expansion. |  | ||||||
| 
 |  | ||||||
| Move it from CpuModelInfo to CpuModelExpansionType, and document |  | ||||||
| its dependence on expansion type property. |  | ||||||
| 
 |  | ||||||
| This was identified late during review [1] and we have to fix it up |  | ||||||
| while it's not part of an official QEMU release yet. |  | ||||||
| 
 |  | ||||||
| [1] https://lore.kernel.org/qemu-devel/20240719181741.35146-1-walling@linux.ibm.com/ |  | ||||||
| 
 |  | ||||||
| Message-ID: <20240726203646.20279-1-walling@linux.ibm.com> |  | ||||||
| Fixes: eed0e8ffa38f ("target/s390x: filter deprecated properties based on model expansion type") |  | ||||||
| Signed-off-by: Collin Walling <walling@linux.ibm.com> |  | ||||||
| [ david: - add "Fixes", adjust description, reference v3 instead |  | ||||||
|          - make property s390x-only and non-optional |  | ||||||
|          - fixup "populate" vs. "populated" ] |  | ||||||
| Signed-off-by: David Hildenbrand <david@redhat.com> |  | ||||||
| (cherry picked from commit 442110bc6f3f308aedf884103fdba87ba906dfe7) |  | ||||||
| ---
 |  | ||||||
|  qapi/machine-target.json         | 19 +++++++++++-------- |  | ||||||
|  target/s390x/cpu_models_sysemu.c | 29 ++++++++++++++++++----------- |  | ||||||
|  2 files changed, 29 insertions(+), 19 deletions(-) |  | ||||||
| 
 |  | ||||||
| diff --git a/qapi/machine-target.json b/qapi/machine-target.json
 |  | ||||||
| index d32dc6958f..320688cd21 100644
 |  | ||||||
| --- a/qapi/machine-target.json
 |  | ||||||
| +++ b/qapi/machine-target.json
 |  | ||||||
| @@ -17,17 +17,11 @@
 |  | ||||||
|  # @name: the name of the CPU definition the model is based on |  | ||||||
|  # @props: a dictionary of QOM properties to be applied |  | ||||||
|  # |  | ||||||
| -# @deprecated-props: a list of properties that are flagged as deprecated
 |  | ||||||
| -#     by the CPU vendor.  These properties are either a subset of the
 |  | ||||||
| -#     properties enabled on the CPU model, or a set of properties
 |  | ||||||
| -#     deprecated across all models for the architecture.
 |  | ||||||
| -#
 |  | ||||||
|  # Since: 2.8 |  | ||||||
|  ## |  | ||||||
|  { 'struct': 'CpuModelInfo', |  | ||||||
|    'data': { 'name': 'str', |  | ||||||
| -            '*props': 'any',
 |  | ||||||
| -            '*deprecated-props': ['str'] } }
 |  | ||||||
| +            '*props': 'any' } }
 |  | ||||||
|   |  | ||||||
|  ## |  | ||||||
|  # @CpuModelExpansionType: |  | ||||||
| @@ -215,10 +209,19 @@
 |  | ||||||
|  # |  | ||||||
|  # @model: the expanded CpuModelInfo. |  | ||||||
|  # |  | ||||||
| +# @deprecated-props: a list of properties that are flagged as deprecated
 |  | ||||||
| +#     by the CPU vendor.  The list depends on the CpuModelExpansionType:
 |  | ||||||
| +#     "static" properties are a subset of the enabled-properties for
 |  | ||||||
| +#     the expanded model; "full" properties are a set of properties
 |  | ||||||
| +#     that are deprecated across all models for the architecture.
 |  | ||||||
| +#     (since: 9.1).
 |  | ||||||
| +#
 |  | ||||||
|  # Since: 2.8 |  | ||||||
|  ## |  | ||||||
|  { 'struct': 'CpuModelExpansionInfo', |  | ||||||
| -  'data': { 'model': 'CpuModelInfo' },
 |  | ||||||
| +  'data': { 'model': 'CpuModelInfo',
 |  | ||||||
| +            'deprecated-props' : { 'type': ['str'],
 |  | ||||||
| +                                   'if': 'TARGET_S390X' } },
 |  | ||||||
|    'if': { 'any': [ 'TARGET_S390X', |  | ||||||
|                     'TARGET_I386', |  | ||||||
|                     'TARGET_ARM' ] } } |  | ||||||
| diff --git a/target/s390x/cpu_models_sysemu.c b/target/s390x/cpu_models_sysemu.c
 |  | ||||||
| index edb81769cd..6680724bfe 100644
 |  | ||||||
| --- a/target/s390x/cpu_models_sysemu.c
 |  | ||||||
| +++ b/target/s390x/cpu_models_sysemu.c
 |  | ||||||
| @@ -183,15 +183,11 @@ static void cpu_info_from_model(CpuModelInfo *info, const S390CPUModel *model,
 |  | ||||||
|                                  bool delta_changes) |  | ||||||
|  { |  | ||||||
|      QDict *qdict = qdict_new(); |  | ||||||
| -    S390FeatBitmap bitmap, deprecated;
 |  | ||||||
| +    S390FeatBitmap bitmap;
 |  | ||||||
|   |  | ||||||
|      /* always fallback to the static base model */ |  | ||||||
|      info->name = g_strdup_printf("%s-base", model->def->name); |  | ||||||
|   |  | ||||||
| -    /* features flagged as deprecated */
 |  | ||||||
| -    bitmap_zero(deprecated, S390_FEAT_MAX);
 |  | ||||||
| -    s390_get_deprecated_features(deprecated);
 |  | ||||||
| -
 |  | ||||||
|      if (delta_changes) { |  | ||||||
|          /* features deleted from the base feature set */ |  | ||||||
|          bitmap_andnot(bitmap, model->def->base_feat, model->features, |  | ||||||
| @@ -206,9 +202,6 @@ static void cpu_info_from_model(CpuModelInfo *info, const S390CPUModel *model,
 |  | ||||||
|          if (!bitmap_empty(bitmap, S390_FEAT_MAX)) { |  | ||||||
|              s390_feat_bitmap_to_ascii(bitmap, qdict, qdict_add_enabled_feat); |  | ||||||
|          } |  | ||||||
| -
 |  | ||||||
| -        /* deprecated features that are a subset of the model's enabled features */
 |  | ||||||
| -        bitmap_and(deprecated, deprecated, model->features, S390_FEAT_MAX);
 |  | ||||||
|      } else { |  | ||||||
|          /* expand all features */ |  | ||||||
|          s390_feat_bitmap_to_ascii(model->features, qdict, |  | ||||||
| @@ -223,9 +216,6 @@ static void cpu_info_from_model(CpuModelInfo *info, const S390CPUModel *model,
 |  | ||||||
|          info->props = QOBJECT(qdict); |  | ||||||
|          info->has_props = true; |  | ||||||
|      } |  | ||||||
| -
 |  | ||||||
| -    s390_feat_bitmap_to_ascii(deprecated, &info->deprecated_props, list_add_feat);
 |  | ||||||
| -    info->has_deprecated_props = !!info->deprecated_props;
 |  | ||||||
|  } |  | ||||||
|   |  | ||||||
|  CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type, |  | ||||||
| @@ -236,6 +226,7 @@ CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type,
 |  | ||||||
|      CpuModelExpansionInfo *expansion_info = NULL; |  | ||||||
|      S390CPUModel s390_model; |  | ||||||
|      bool delta_changes = false; |  | ||||||
| +    S390FeatBitmap deprecated_feats;
 |  | ||||||
|   |  | ||||||
|      /* convert it to our internal representation */ |  | ||||||
|      cpu_model_from_info(&s390_model, model, &err); |  | ||||||
| @@ -255,6 +246,22 @@ CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type,
 |  | ||||||
|      expansion_info = g_new0(CpuModelExpansionInfo, 1); |  | ||||||
|      expansion_info->model = g_malloc0(sizeof(*expansion_info->model)); |  | ||||||
|      cpu_info_from_model(expansion_info->model, &s390_model, delta_changes); |  | ||||||
| +
 |  | ||||||
| +    /* populate list of deprecated features */
 |  | ||||||
| +    bitmap_zero(deprecated_feats, S390_FEAT_MAX);
 |  | ||||||
| +    s390_get_deprecated_features(deprecated_feats);
 |  | ||||||
| +
 |  | ||||||
| +    if (delta_changes) {
 |  | ||||||
| +        /*
 |  | ||||||
| +         * Only populate deprecated features that are a
 |  | ||||||
| +         * subset of the features enabled on the CPU model.
 |  | ||||||
| +         */
 |  | ||||||
| +        bitmap_and(deprecated_feats, deprecated_feats,
 |  | ||||||
| +                   s390_model.features, S390_FEAT_MAX);
 |  | ||||||
| +    }
 |  | ||||||
| +
 |  | ||||||
| +    s390_feat_bitmap_to_ascii(deprecated_feats,
 |  | ||||||
| +                              &expansion_info->deprecated_props, list_add_feat);
 |  | ||||||
|      return expansion_info; |  | ||||||
|  } |  | ||||||
|   |  | ||||||
| -- 
 |  | ||||||
| 2.48.1 |  | ||||||
| 
 |  | ||||||
| @ -1,136 +0,0 @@ | |||||||
| From 1955d06f0ffcdcacdf1eec5c9fee99a2a9e81350 Mon Sep 17 00:00:00 2001 |  | ||||||
| From: Collin Walling <walling@linux.ibm.com> |  | ||||||
| Date: Mon, 29 Apr 2024 15:10:58 -0400 |  | ||||||
| Subject: [PATCH 1/5] target/s390x: report deprecated-props in |  | ||||||
|  cpu-model-expansion reply |  | ||||||
| MIME-Version: 1.0 |  | ||||||
| Content-Type: text/plain; charset=UTF-8 |  | ||||||
| Content-Transfer-Encoding: 8bit |  | ||||||
| 
 |  | ||||||
| RH-Author: Thomas Huth <thuth@redhat.com> |  | ||||||
| RH-MergeRequest: 449: Fix for live-migrating guests from IBM z16 to z17 host machines |  | ||||||
| RH-Jira: RHEL-88701 |  | ||||||
| RH-Acked-by: Cédric Le Goater <clg@redhat.com> |  | ||||||
| RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com> |  | ||||||
| RH-Commit: [1/5] 9cecba35e831615bc1c899730b4f32de0fd7ba83 |  | ||||||
| 
 |  | ||||||
| Retain a list of deprecated features disjoint from any particular |  | ||||||
| CPU model. A query-cpu-model-expansion reply will now provide a list of |  | ||||||
| properties (i.e. features) that are flagged as deprecated. Example: |  | ||||||
| 
 |  | ||||||
|     { |  | ||||||
|       "return": { |  | ||||||
|         "model": { |  | ||||||
|           "name": "z14.2-base", |  | ||||||
|           "deprecated-props": [ |  | ||||||
|             "bpb", |  | ||||||
|             "csske" |  | ||||||
|           ], |  | ||||||
|           "props": { |  | ||||||
|             "pfmfi": false, |  | ||||||
|             "exrl": true, |  | ||||||
|             ...a lot more props... |  | ||||||
|             "skey": false, |  | ||||||
|             "vxpdeh2": false |  | ||||||
|           } |  | ||||||
|         } |  | ||||||
|       } |  | ||||||
|     } |  | ||||||
| 
 |  | ||||||
| It is recommended that s390 guests operate with these features |  | ||||||
| explicitly disabled to ensure compatibility with future hardware. |  | ||||||
| 
 |  | ||||||
| Signed-off-by: Collin Walling <walling@linux.ibm.com> |  | ||||||
| Acked-by: Markus Armbruster <armbru@redhat.com> |  | ||||||
| Reviewed-by: David Hildenbrand <david@redhat.com> |  | ||||||
| Message-ID: <20240429191059.11806-2-walling@linux.ibm.com> |  | ||||||
| Signed-off-by: Thomas Huth <thuth@redhat.com> |  | ||||||
| (cherry picked from commit 8aa2211e855df79ddd363e5f0d8c4d7d4c376e16) |  | ||||||
| ---
 |  | ||||||
|  qapi/machine-target.json         |  7 ++++++- |  | ||||||
|  target/s390x/cpu_features.c      | 14 ++++++++++++++ |  | ||||||
|  target/s390x/cpu_features.h      |  1 + |  | ||||||
|  target/s390x/cpu_models_sysemu.c |  8 ++++++++ |  | ||||||
|  4 files changed, 29 insertions(+), 1 deletion(-) |  | ||||||
| 
 |  | ||||||
| diff --git a/qapi/machine-target.json b/qapi/machine-target.json
 |  | ||||||
| index f5ec4bc172..c93c811dbc 100644
 |  | ||||||
| --- a/qapi/machine-target.json
 |  | ||||||
| +++ b/qapi/machine-target.json
 |  | ||||||
| @@ -17,11 +17,16 @@
 |  | ||||||
|  # @name: the name of the CPU definition the model is based on |  | ||||||
|  # @props: a dictionary of QOM properties to be applied |  | ||||||
|  # |  | ||||||
| +# @deprecated-props: a list of properties that are flagged as deprecated
 |  | ||||||
| +#     by the CPU vendor.  These props are a subset of the full model's
 |  | ||||||
| +#     definition list of properties. (since 9.1)
 |  | ||||||
| +#
 |  | ||||||
|  # Since: 2.8 |  | ||||||
|  ## |  | ||||||
|  { 'struct': 'CpuModelInfo', |  | ||||||
|    'data': { 'name': 'str', |  | ||||||
| -            '*props': 'any' } }
 |  | ||||||
| +            '*props': 'any',
 |  | ||||||
| +            '*deprecated-props': ['str'] } }
 |  | ||||||
|   |  | ||||||
|  ## |  | ||||||
|  # @CpuModelExpansionType: |  | ||||||
| diff --git a/target/s390x/cpu_features.c b/target/s390x/cpu_features.c
 |  | ||||||
| index ebb155ce1c..40be75c90a 100644
 |  | ||||||
| --- a/target/s390x/cpu_features.c
 |  | ||||||
| +++ b/target/s390x/cpu_features.c
 |  | ||||||
| @@ -212,6 +212,20 @@ void s390_feat_bitmap_to_ascii(const S390FeatBitmap features, void *opaque,
 |  | ||||||
|      }; |  | ||||||
|  } |  | ||||||
|   |  | ||||||
| +void s390_get_deprecated_features(S390FeatBitmap features)
 |  | ||||||
| +{
 |  | ||||||
| +    static const int feats[] = {
 |  | ||||||
| +         /* CSSKE is deprecated on newer generations */
 |  | ||||||
| +         S390_FEAT_CONDITIONAL_SSKE,
 |  | ||||||
| +         S390_FEAT_BPB,
 |  | ||||||
| +    };
 |  | ||||||
| +    int i;
 |  | ||||||
| +
 |  | ||||||
| +    for (i = 0; i < ARRAY_SIZE(feats); i++) {
 |  | ||||||
| +        set_bit(feats[i], features);
 |  | ||||||
| +    }
 |  | ||||||
| +}
 |  | ||||||
| +
 |  | ||||||
|  #define FEAT_GROUP_INIT(_name, _group, _desc)        \ |  | ||||||
|      {                                                \ |  | ||||||
|          .name = _name,                               \ |  | ||||||
| diff --git a/target/s390x/cpu_features.h b/target/s390x/cpu_features.h
 |  | ||||||
| index a9bd68a2e1..661a8cd6db 100644
 |  | ||||||
| --- a/target/s390x/cpu_features.h
 |  | ||||||
| +++ b/target/s390x/cpu_features.h
 |  | ||||||
| @@ -69,6 +69,7 @@ void s390_add_from_feat_block(S390FeatBitmap features, S390FeatType type,
 |  | ||||||
|                            uint8_t *data); |  | ||||||
|  void s390_feat_bitmap_to_ascii(const S390FeatBitmap features, void *opaque, |  | ||||||
|                                 void (*fn)(const char *name, void *opaque)); |  | ||||||
| +void s390_get_deprecated_features(S390FeatBitmap features);
 |  | ||||||
|   |  | ||||||
|  /* Definition of a CPU feature group */ |  | ||||||
|  typedef struct { |  | ||||||
| diff --git a/target/s390x/cpu_models_sysemu.c b/target/s390x/cpu_models_sysemu.c
 |  | ||||||
| index 6a04ccab1b..7ed94b4117 100644
 |  | ||||||
| --- a/target/s390x/cpu_models_sysemu.c
 |  | ||||||
| +++ b/target/s390x/cpu_models_sysemu.c
 |  | ||||||
| @@ -216,6 +216,14 @@ static void cpu_info_from_model(CpuModelInfo *info, const S390CPUModel *model,
 |  | ||||||
|          info->props = QOBJECT(qdict); |  | ||||||
|          info->has_props = true; |  | ||||||
|      } |  | ||||||
| +
 |  | ||||||
| +    /* features flagged as deprecated */
 |  | ||||||
| +    bitmap_zero(bitmap, S390_FEAT_MAX);
 |  | ||||||
| +    s390_get_deprecated_features(bitmap);
 |  | ||||||
| +
 |  | ||||||
| +    bitmap_and(bitmap, bitmap, model->def->full_feat, S390_FEAT_MAX);
 |  | ||||||
| +    s390_feat_bitmap_to_ascii(bitmap, &info->deprecated_props, list_add_feat);
 |  | ||||||
| +    info->has_deprecated_props = !!info->deprecated_props;
 |  | ||||||
|  } |  | ||||||
|   |  | ||||||
|  CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type, |  | ||||||
| -- 
 |  | ||||||
| 2.48.1 |  | ||||||
| 
 |  | ||||||
| @ -1,118 +0,0 @@ | |||||||
| From 4069f8f55d070b5a1eb2bf894a517ea9fb648bbd Mon Sep 17 00:00:00 2001 |  | ||||||
| From: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| Date: Tue, 5 Mar 2024 11:36:15 -0500 |  | ||||||
| Subject: [PATCH 2/3] ui/clipboard: mark type as not available when there is no |  | ||||||
|  data |  | ||||||
| MIME-Version: 1.0 |  | ||||||
| Content-Type: text/plain; charset=UTF-8 |  | ||||||
| Content-Transfer-Encoding: 8bit |  | ||||||
| 
 |  | ||||||
| RH-Author: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| RH-MergeRequest: 353: ui/clipboard: mark type as not available when there is no data |  | ||||||
| RH-Jira: RHEL-19628 |  | ||||||
| RH-Acked-by: Marc-André Lureau <marcandre.lureau@redhat.com> |  | ||||||
| RH-Acked-by: Gerd Hoffmann <None> |  | ||||||
| RH-Commit: [2/2] fa0edf7a362a16978e2377cf61f36ff227d186b2 (redhat/rhel/src/qemu-kvm/jons-qemu-kvm-2) |  | ||||||
| 
 |  | ||||||
| JIRA: https://issues.redhat.com/browse/RHEL-19628 |  | ||||||
| CVE: CVE-2023-6683 |  | ||||||
| Upstream: Merged |  | ||||||
| Conflicts: |  | ||||||
|          - The function g_memdup2() is used by this commit, but is not present in |  | ||||||
|            this code version. It looks safe to introduce it in a preceding commit, |  | ||||||
|            instead of reverting to the less safe g_memdup(), so that is what we do. |  | ||||||
|          - There is a second upstream commit covering this CVE: |  | ||||||
|            commit 9c416582611b ("ui/clipboard: add asserts for update and request") |  | ||||||
|            which is based on several other previous commits not present in this version. |  | ||||||
|            Re-applying these, or trying to adapt the code, is too intrusive and risky |  | ||||||
|            given that it only introduces two diagnostic asserts which are not essential |  | ||||||
|            for solving the CVE. |  | ||||||
|            We therefore omit that commit. |  | ||||||
| 
 |  | ||||||
| commit 405484b29f6548c7b86549b0f961b906337aa68a |  | ||||||
| Author: Fiona Ebner <f.ebner@proxmox.com> |  | ||||||
| Date:   Wed Jan 24 11:57:48 2024 +0100 |  | ||||||
| 
 |  | ||||||
|     ui/clipboard: mark type as not available when there is no data |  | ||||||
| 
 |  | ||||||
|     With VNC, a client can send a non-extended VNC_MSG_CLIENT_CUT_TEXT |  | ||||||
|     message with len=0. In qemu_clipboard_set_data(), the clipboard info |  | ||||||
|     will be updated setting data to NULL (because g_memdup(data, size) |  | ||||||
|     returns NULL when size is 0). If the client does not set the |  | ||||||
|     VNC_ENCODING_CLIPBOARD_EXT feature when setting up the encodings, then |  | ||||||
|     the 'request' callback for the clipboard peer is not initialized. |  | ||||||
|     Later, because data is NULL, qemu_clipboard_request() can be reached |  | ||||||
|     via vdagent_chr_write() and vdagent_clipboard_recv_request() and |  | ||||||
|     there, the clipboard owner's 'request' callback will be attempted to |  | ||||||
|     be called, but that is a NULL pointer. |  | ||||||
| 
 |  | ||||||
|     In particular, this can happen when using the KRDC (22.12.3) VNC |  | ||||||
|     client. |  | ||||||
| 
 |  | ||||||
|     Another scenario leading to the same issue is with two clients (say |  | ||||||
|     noVNC and KRDC): |  | ||||||
| 
 |  | ||||||
|     The noVNC client sets the extension VNC_FEATURE_CLIPBOARD_EXT and |  | ||||||
|     initializes its cbpeer. |  | ||||||
| 
 |  | ||||||
|     The KRDC client does not, but triggers a vnc_client_cut_text() (note |  | ||||||
|     it's not the _ext variant)). There, a new clipboard info with it as |  | ||||||
|     the 'owner' is created and via qemu_clipboard_set_data() is called, |  | ||||||
|     which in turn calls qemu_clipboard_update() with that info. |  | ||||||
| 
 |  | ||||||
|     In qemu_clipboard_update(), the notifier for the noVNC client will be |  | ||||||
|     called, i.e. vnc_clipboard_notify() and also set vs->cbinfo for the |  | ||||||
|     noVNC client. The 'owner' in that clipboard info is the clipboard peer |  | ||||||
|     for the KRDC client, which did not initialize the 'request' function. |  | ||||||
|     That sounds correct to me, it is the owner of that clipboard info. |  | ||||||
| 
 |  | ||||||
|     Then when noVNC sends a VNC_MSG_CLIENT_CUT_TEXT message (it did set |  | ||||||
|     the VNC_FEATURE_CLIPBOARD_EXT feature correctly, so a check for it |  | ||||||
|     passes), that clipboard info is passed to qemu_clipboard_request() and |  | ||||||
|     the original segfault still happens. |  | ||||||
| 
 |  | ||||||
|     Fix the issue by handling updates with size 0 differently. In |  | ||||||
|     particular, mark in the clipboard info that the type is not available. |  | ||||||
| 
 |  | ||||||
|     While at it, switch to g_memdup2(), because g_memdup() is deprecated. |  | ||||||
| 
 |  | ||||||
|     Cc: qemu-stable@nongnu.org |  | ||||||
|     Fixes: CVE-2023-6683 |  | ||||||
|     Reported-by: Markus Frank <m.frank@proxmox.com> |  | ||||||
|     Suggested-by: Marc-André Lureau <marcandre.lureau@redhat.com> |  | ||||||
|     Signed-off-by: Fiona Ebner <f.ebner@proxmox.com> |  | ||||||
|     Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> |  | ||||||
|     Tested-by: Markus Frank <m.frank@proxmox.com> |  | ||||||
|     Message-ID: <20240124105749.204610-1-f.ebner@proxmox.com> |  | ||||||
| 
 |  | ||||||
| Signed-off-by: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| ---
 |  | ||||||
|  ui/clipboard.c | 12 +++++++++--- |  | ||||||
|  1 file changed, 9 insertions(+), 3 deletions(-) |  | ||||||
| 
 |  | ||||||
| diff --git a/ui/clipboard.c b/ui/clipboard.c
 |  | ||||||
| index d7b008d62a..b8c795f2e2 100644
 |  | ||||||
| --- a/ui/clipboard.c
 |  | ||||||
| +++ b/ui/clipboard.c
 |  | ||||||
| @@ -123,9 +123,15 @@ void qemu_clipboard_set_data(QemuClipboardPeer *peer,
 |  | ||||||
|      } |  | ||||||
|   |  | ||||||
|      g_free(info->types[type].data); |  | ||||||
| -    info->types[type].data = g_memdup(data, size);
 |  | ||||||
| -    info->types[type].size = size;
 |  | ||||||
| -    info->types[type].available = true;
 |  | ||||||
| +    if (size) {
 |  | ||||||
| +        info->types[type].data = g_memdup2(data, size);
 |  | ||||||
| +        info->types[type].size = size;
 |  | ||||||
| +        info->types[type].available = true;
 |  | ||||||
| +    } else {
 |  | ||||||
| +        info->types[type].data = NULL;
 |  | ||||||
| +        info->types[type].size = 0;
 |  | ||||||
| +        info->types[type].available = false;
 |  | ||||||
| +    }
 |  | ||||||
|   |  | ||||||
|      if (update) { |  | ||||||
|          qemu_clipboard_update(info); |  | ||||||
| -- 
 |  | ||||||
| 2.41.0 |  | ||||||
| 
 |  | ||||||
| @ -1,92 +0,0 @@ | |||||||
| From 7ad4fc282b1f96d619ce2f9f7ed9049c3b894dd4 Mon Sep 17 00:00:00 2001 |  | ||||||
| From: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| Date: Thu, 18 Jul 2024 09:42:42 -0400 |  | ||||||
| Subject: [PATCH 1/6] virtio-gpu: free BHs, by implementing unrealize |  | ||||||
| MIME-Version: 1.0 |  | ||||||
| Content-Type: text/plain; charset=UTF-8 |  | ||||||
| Content-Transfer-Encoding: 8bit |  | ||||||
| 
 |  | ||||||
| RH-Author: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| RH-MergeRequest: 380: QEMU: virtio: DMA reentrancy issue leads to double free vulnerability |  | ||||||
| RH-Jira: RHEL-32276 |  | ||||||
| RH-Acked-by: Gerd Hoffmann <None> |  | ||||||
| RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com> |  | ||||||
| RH-Commit: [1/6] d05c10426afac428d775669748f0aa689c23e787 (redhat/rhel/src/qemu-kvm/jons-qemu-kvm-2) |  | ||||||
| 
 |  | ||||||
| JIRA: https://issues.redhat.com/browse/RHEL-32276 |  | ||||||
| CVE: CVE-2024-3446 |  | ||||||
| Upstream: Merged |  | ||||||
| 
 |  | ||||||
| commit 957d77863e4564454eb97f8f371096843daf4678 |  | ||||||
| Author: Marc-André Lureau <marcandre.lureau@redhat.com> |  | ||||||
| Date:   Wed Jul 26 21:39:28 2023 +0400 |  | ||||||
| 
 |  | ||||||
|     virtio-gpu: free BHs, by implementing unrealize |  | ||||||
| 
 |  | ||||||
|     Acked-by: Dongwon Kim <dongwon.kim@intel.com> |  | ||||||
|     Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> |  | ||||||
|     Message-Id: <20230726173929.690601-2-marcandre.lureau@redhat.com> |  | ||||||
| 
 |  | ||||||
| Signed-off-by: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| ---
 |  | ||||||
|  hw/display/virtio-gpu-base.c   |  2 +- |  | ||||||
|  hw/display/virtio-gpu.c        | 10 ++++++++++ |  | ||||||
|  include/hw/virtio/virtio-gpu.h |  1 + |  | ||||||
|  3 files changed, 12 insertions(+), 1 deletion(-) |  | ||||||
| 
 |  | ||||||
| diff --git a/hw/display/virtio-gpu-base.c b/hw/display/virtio-gpu-base.c
 |  | ||||||
| index c8da4806e0..e3ff9dcf38 100644
 |  | ||||||
| --- a/hw/display/virtio-gpu-base.c
 |  | ||||||
| +++ b/hw/display/virtio-gpu-base.c
 |  | ||||||
| @@ -223,7 +223,7 @@ virtio_gpu_base_set_features(VirtIODevice *vdev, uint64_t features)
 |  | ||||||
|      trace_virtio_gpu_features(((features & virgl) == virgl)); |  | ||||||
|  } |  | ||||||
|   |  | ||||||
| -static void
 |  | ||||||
| +void
 |  | ||||||
|  virtio_gpu_base_device_unrealize(DeviceState *qdev) |  | ||||||
|  { |  | ||||||
|      VirtIOGPUBase *g = VIRTIO_GPU_BASE(qdev); |  | ||||||
| diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c
 |  | ||||||
| index ecf9079145..e230e5091f 100644
 |  | ||||||
| --- a/hw/display/virtio-gpu.c
 |  | ||||||
| +++ b/hw/display/virtio-gpu.c
 |  | ||||||
| @@ -1341,6 +1341,15 @@ void virtio_gpu_device_realize(DeviceState *qdev, Error **errp)
 |  | ||||||
|      QTAILQ_INIT(&g->fenceq); |  | ||||||
|  } |  | ||||||
|   |  | ||||||
| +static void virtio_gpu_device_unrealize(DeviceState *qdev)
 |  | ||||||
| +{
 |  | ||||||
| +    VirtIOGPU *g = VIRTIO_GPU(qdev);
 |  | ||||||
| +
 |  | ||||||
| +    g_clear_pointer(&g->ctrl_bh, qemu_bh_delete);
 |  | ||||||
| +    g_clear_pointer(&g->cursor_bh, qemu_bh_delete);
 |  | ||||||
| +    virtio_gpu_base_device_unrealize(qdev);
 |  | ||||||
| +}
 |  | ||||||
| +
 |  | ||||||
|  void virtio_gpu_reset(VirtIODevice *vdev) |  | ||||||
|  { |  | ||||||
|      VirtIOGPU *g = VIRTIO_GPU(vdev); |  | ||||||
| @@ -1436,6 +1445,7 @@ static void virtio_gpu_class_init(ObjectClass *klass, void *data)
 |  | ||||||
|      vgbc->gl_flushed = virtio_gpu_handle_gl_flushed; |  | ||||||
|   |  | ||||||
|      vdc->realize = virtio_gpu_device_realize; |  | ||||||
| +    vdc->unrealize = virtio_gpu_device_unrealize;
 |  | ||||||
|      vdc->reset = virtio_gpu_reset; |  | ||||||
|      vdc->get_config = virtio_gpu_get_config; |  | ||||||
|      vdc->set_config = virtio_gpu_set_config; |  | ||||||
| diff --git a/include/hw/virtio/virtio-gpu.h b/include/hw/virtio/virtio-gpu.h
 |  | ||||||
| index acfba7c76c..4367d005f1 100644
 |  | ||||||
| --- a/include/hw/virtio/virtio-gpu.h
 |  | ||||||
| +++ b/include/hw/virtio/virtio-gpu.h
 |  | ||||||
| @@ -235,6 +235,7 @@ bool virtio_gpu_base_device_realize(DeviceState *qdev,
 |  | ||||||
|                                      VirtIOHandleOutput ctrl_cb, |  | ||||||
|                                      VirtIOHandleOutput cursor_cb, |  | ||||||
|                                      Error **errp); |  | ||||||
| +void virtio_gpu_base_device_unrealize(DeviceState *qdev);
 |  | ||||||
|  void virtio_gpu_base_reset(VirtIOGPUBase *g); |  | ||||||
|  void virtio_gpu_base_fill_display_info(VirtIOGPUBase *g, |  | ||||||
|                          struct virtio_gpu_resp_display_info *dpy_info); |  | ||||||
| -- 
 |  | ||||||
| 2.39.3 |  | ||||||
| 
 |  | ||||||
| @ -1,143 +0,0 @@ | |||||||
| From 29328e9693aeae1c980a859d4966deda9f54242d Mon Sep 17 00:00:00 2001 |  | ||||||
| From: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| Date: Thu, 18 Jul 2024 09:36:06 -0400 |  | ||||||
| Subject: [PATCH 2/6] virtio-gpu: reset gfx resources in main thread |  | ||||||
| MIME-Version: 1.0 |  | ||||||
| Content-Type: text/plain; charset=UTF-8 |  | ||||||
| Content-Transfer-Encoding: 8bit |  | ||||||
| 
 |  | ||||||
| RH-Author: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| RH-MergeRequest: 380: QEMU: virtio: DMA reentrancy issue leads to double free vulnerability |  | ||||||
| RH-Jira: RHEL-32276 |  | ||||||
| RH-Acked-by: Gerd Hoffmann <None> |  | ||||||
| RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com> |  | ||||||
| RH-Commit: [2/6] a97eef1e6e85b44c08d17adcdc468e857e48a17e (redhat/rhel/src/qemu-kvm/jons-qemu-kvm-2) |  | ||||||
| 
 |  | ||||||
| JIRA: https://issues.redhat.com/browse/RHEL-32276 |  | ||||||
| CVE: CVE-2024-3446 |  | ||||||
| Upstream: Merged |  | ||||||
| 
 |  | ||||||
| commit a41e2d97f92b48552988b3cc62dce79d62f60dcc |  | ||||||
| Author: Marc-André Lureau <marcandre.lureau@redhat.com> |  | ||||||
| Date:   Wed Jul 26 21:39:29 2023 +0400 |  | ||||||
| 
 |  | ||||||
|     virtio-gpu: reset gfx resources in main thread |  | ||||||
| 
 |  | ||||||
|     Calling OpenGL from different threads can have bad consequences if not |  | ||||||
|     carefully reviewed. It's not generally supported. In my case, I was |  | ||||||
|     debugging a crash in glDeleteTextures from OPENGL32.DLL, where I asked |  | ||||||
|     qemu for gl=es, and thus ANGLE implementation was expected. libepoxy did |  | ||||||
|     resolution of the global pointer for glGenTexture to the GLES version |  | ||||||
|     from the main thread. But it resolved glDeleteTextures to the GL |  | ||||||
|     version, because it was done from a different thread without correct |  | ||||||
|     context. Oops. |  | ||||||
| 
 |  | ||||||
|     Let's stick to the main thread for GL calls by using a BH. |  | ||||||
| 
 |  | ||||||
|     Note: I didn't use atomics for reset_finished check, assuming the BQL |  | ||||||
|     will provide enough of sync, but I might be wrong. |  | ||||||
| 
 |  | ||||||
|     Acked-by: Dongwon Kim <dongwon.kim@intel.com> |  | ||||||
|     Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> |  | ||||||
|     Message-Id: <20230726173929.690601-3-marcandre.lureau@redhat.com> |  | ||||||
| 
 |  | ||||||
| Signed-off-by: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| ---
 |  | ||||||
|  hw/display/virtio-gpu.c        | 35 +++++++++++++++++++++++++++++++--- |  | ||||||
|  include/hw/virtio/virtio-gpu.h |  3 +++ |  | ||||||
|  2 files changed, 35 insertions(+), 3 deletions(-) |  | ||||||
| 
 |  | ||||||
| diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c
 |  | ||||||
| index e230e5091f..c28ce1ea72 100644
 |  | ||||||
| --- a/hw/display/virtio-gpu.c
 |  | ||||||
| +++ b/hw/display/virtio-gpu.c
 |  | ||||||
| @@ -14,6 +14,7 @@
 |  | ||||||
|  #include "qemu/osdep.h" |  | ||||||
|  #include "qemu/units.h" |  | ||||||
|  #include "qemu/iov.h" |  | ||||||
| +#include "sysemu/cpus.h"
 |  | ||||||
|  #include "ui/console.h" |  | ||||||
|  #include "trace.h" |  | ||||||
|  #include "sysemu/dma.h" |  | ||||||
| @@ -42,6 +43,7 @@ virtio_gpu_find_check_resource(VirtIOGPU *g, uint32_t resource_id,
 |  | ||||||
|   |  | ||||||
|  static void virtio_gpu_cleanup_mapping(VirtIOGPU *g, |  | ||||||
|                                         struct virtio_gpu_simple_resource *res); |  | ||||||
| +static void virtio_gpu_reset_bh(void *opaque);
 |  | ||||||
|   |  | ||||||
|  void virtio_gpu_update_cursor_data(VirtIOGPU *g, |  | ||||||
|                                     struct virtio_gpu_scanout *s, |  | ||||||
| @@ -1336,6 +1338,8 @@ void virtio_gpu_device_realize(DeviceState *qdev, Error **errp)
 |  | ||||||
|                                       &qdev->mem_reentrancy_guard); |  | ||||||
|      g->cursor_bh = qemu_bh_new_guarded(virtio_gpu_cursor_bh, g, |  | ||||||
|                                         &qdev->mem_reentrancy_guard); |  | ||||||
| +    g->reset_bh = qemu_bh_new(virtio_gpu_reset_bh, g);
 |  | ||||||
| +    qemu_cond_init(&g->reset_cond);
 |  | ||||||
|      QTAILQ_INIT(&g->reslist); |  | ||||||
|      QTAILQ_INIT(&g->cmdq); |  | ||||||
|      QTAILQ_INIT(&g->fenceq); |  | ||||||
| @@ -1347,19 +1351,44 @@ static void virtio_gpu_device_unrealize(DeviceState *qdev)
 |  | ||||||
|   |  | ||||||
|      g_clear_pointer(&g->ctrl_bh, qemu_bh_delete); |  | ||||||
|      g_clear_pointer(&g->cursor_bh, qemu_bh_delete); |  | ||||||
| +    g_clear_pointer(&g->reset_bh, qemu_bh_delete);
 |  | ||||||
| +    qemu_cond_destroy(&g->reset_cond);
 |  | ||||||
|      virtio_gpu_base_device_unrealize(qdev); |  | ||||||
|  } |  | ||||||
|   |  | ||||||
| -void virtio_gpu_reset(VirtIODevice *vdev)
 |  | ||||||
| +static void virtio_gpu_reset_bh(void *opaque)
 |  | ||||||
|  { |  | ||||||
| -    VirtIOGPU *g = VIRTIO_GPU(vdev);
 |  | ||||||
| +    VirtIOGPU *g = VIRTIO_GPU(opaque);
 |  | ||||||
|      struct virtio_gpu_simple_resource *res, *tmp; |  | ||||||
| -    struct virtio_gpu_ctrl_command *cmd;
 |  | ||||||
| +    int i = 0;
 |  | ||||||
|   |  | ||||||
|      QTAILQ_FOREACH_SAFE(res, &g->reslist, next, tmp) { |  | ||||||
|          virtio_gpu_resource_destroy(g, res); |  | ||||||
|      } |  | ||||||
|   |  | ||||||
| +    for (i = 0; i < g->parent_obj.conf.max_outputs; i++) {
 |  | ||||||
| +        dpy_gfx_replace_surface(g->parent_obj.scanout[i].con, NULL);
 |  | ||||||
| +    }
 |  | ||||||
| +
 |  | ||||||
| +    g->reset_finished = true;
 |  | ||||||
| +    qemu_cond_signal(&g->reset_cond);
 |  | ||||||
| +}
 |  | ||||||
| +
 |  | ||||||
| +void virtio_gpu_reset(VirtIODevice *vdev)
 |  | ||||||
| +{
 |  | ||||||
| +    VirtIOGPU *g = VIRTIO_GPU(vdev);
 |  | ||||||
| +    struct virtio_gpu_ctrl_command *cmd;
 |  | ||||||
| +
 |  | ||||||
| +    if (qemu_in_vcpu_thread()) {
 |  | ||||||
| +        g->reset_finished = false;
 |  | ||||||
| +        qemu_bh_schedule(g->reset_bh);
 |  | ||||||
| +        while (!g->reset_finished) {
 |  | ||||||
| +            qemu_cond_wait_iothread(&g->reset_cond);
 |  | ||||||
| +        }
 |  | ||||||
| +    } else {
 |  | ||||||
| +        virtio_gpu_reset_bh(g);
 |  | ||||||
| +    }
 |  | ||||||
| +
 |  | ||||||
|      while (!QTAILQ_EMPTY(&g->cmdq)) { |  | ||||||
|          cmd = QTAILQ_FIRST(&g->cmdq); |  | ||||||
|          QTAILQ_REMOVE(&g->cmdq, cmd, next); |  | ||||||
| diff --git a/include/hw/virtio/virtio-gpu.h b/include/hw/virtio/virtio-gpu.h
 |  | ||||||
| index 4367d005f1..f3578c1325 100644
 |  | ||||||
| --- a/include/hw/virtio/virtio-gpu.h
 |  | ||||||
| +++ b/include/hw/virtio/virtio-gpu.h
 |  | ||||||
| @@ -166,6 +166,9 @@ struct VirtIOGPU {
 |  | ||||||
|   |  | ||||||
|      QEMUBH *ctrl_bh; |  | ||||||
|      QEMUBH *cursor_bh; |  | ||||||
| +    QEMUBH *reset_bh;
 |  | ||||||
| +    QemuCond reset_cond;
 |  | ||||||
| +    bool reset_finished;
 |  | ||||||
|   |  | ||||||
|      QTAILQ_HEAD(, virtio_gpu_simple_resource) reslist; |  | ||||||
|      QTAILQ_HEAD(, virtio_gpu_ctrl_command) cmdq; |  | ||||||
| -- 
 |  | ||||||
| 2.39.3 |  | ||||||
| 
 |  | ||||||
| @ -1,90 +0,0 @@ | |||||||
| From c3146dd39fb274ffbd70d20f8ba9e13562fb21ad Mon Sep 17 00:00:00 2001 |  | ||||||
| From: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| Date: Tue, 5 Mar 2024 16:38:49 -0500 |  | ||||||
| Subject: [PATCH 3/3] virtio-net: correctly copy vnet header when flushing TX |  | ||||||
| 
 |  | ||||||
| RH-Author: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| RH-MergeRequest: 354: virtio-net: correctly copy vnet header when flushing TX |  | ||||||
| RH-Jira: RHEL-19496 |  | ||||||
| RH-Acked-by: Jason Wang <jasowang@redhat.com> |  | ||||||
| RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com> |  | ||||||
| RH-Commit: [1/1] 445b601da86a64298b776879fa0f30a4bf6c16f5 (redhat/rhel/src/qemu-kvm/jons-qemu-kvm-2) |  | ||||||
| 
 |  | ||||||
| JIRA: https://issues.redhat.com/browse/RHEL-19496 |  | ||||||
| CVE: CVE-2023-6693 |  | ||||||
| Upstream: Merged |  | ||||||
| 
 |  | ||||||
| commit 2220e8189fb94068dbad333228659fbac819abb0 |  | ||||||
| Author: Jason Wang <jasowang@redhat.com> |  | ||||||
| Date:   Tue Jan 2 11:29:01 2024 +0800 |  | ||||||
| 
 |  | ||||||
|     virtio-net: correctly copy vnet header when flushing TX |  | ||||||
| 
 |  | ||||||
|     When HASH_REPORT is negotiated, the guest_hdr_len might be larger than |  | ||||||
|     the size of the mergeable rx buffer header. Using |  | ||||||
|     virtio_net_hdr_mrg_rxbuf during the header swap might lead a stack |  | ||||||
|     overflow in this case. Fixing this by using virtio_net_hdr_v1_hash |  | ||||||
|     instead. |  | ||||||
| 
 |  | ||||||
|     Reported-by: Xiao Lei <leixiao.nop@zju.edu.cn> |  | ||||||
|     Cc: Yuri Benditovich <yuri.benditovich@daynix.com> |  | ||||||
|     Cc: qemu-stable@nongnu.org |  | ||||||
|     Cc: Mauro Matteo Cascella <mcascell@redhat.com> |  | ||||||
|     Fixes: CVE-2023-6693 |  | ||||||
|     Fixes: e22f0603fb2f ("virtio-net: reference implementation of hash report") |  | ||||||
|     Reviewed-by: Michael Tokarev <mjt@tls.msk.ru> |  | ||||||
|     Signed-off-by: Jason Wang <jasowang@redhat.com> |  | ||||||
| 
 |  | ||||||
| Signed-off-by: Jon Maloy <jmaloy@redhat.com> |  | ||||||
| ---
 |  | ||||||
|  hw/net/virtio-net.c | 13 +++++++++---- |  | ||||||
|  1 file changed, 9 insertions(+), 4 deletions(-) |  | ||||||
| 
 |  | ||||||
| diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
 |  | ||||||
| index f5f07f8e63..7d459726d4 100644
 |  | ||||||
| --- a/hw/net/virtio-net.c
 |  | ||||||
| +++ b/hw/net/virtio-net.c
 |  | ||||||
| @@ -602,6 +602,11 @@ static void virtio_net_set_mrg_rx_bufs(VirtIONet *n, int mergeable_rx_bufs,
 |  | ||||||
|   |  | ||||||
|      n->mergeable_rx_bufs = mergeable_rx_bufs; |  | ||||||
|   |  | ||||||
| +    /*
 |  | ||||||
| +     * Note: when extending the vnet header, please make sure to
 |  | ||||||
| +     * change the vnet header copying logic in virtio_net_flush_tx()
 |  | ||||||
| +     * as well.
 |  | ||||||
| +     */
 |  | ||||||
|      if (version_1) { |  | ||||||
|          n->guest_hdr_len = hash_report ? |  | ||||||
|              sizeof(struct virtio_net_hdr_v1_hash) : |  | ||||||
| @@ -2535,7 +2540,7 @@ static int32_t virtio_net_flush_tx(VirtIONetQueue *q)
 |  | ||||||
|          ssize_t ret; |  | ||||||
|          unsigned int out_num; |  | ||||||
|          struct iovec sg[VIRTQUEUE_MAX_SIZE], sg2[VIRTQUEUE_MAX_SIZE + 1], *out_sg; |  | ||||||
| -        struct virtio_net_hdr_mrg_rxbuf mhdr;
 |  | ||||||
| +        struct virtio_net_hdr_v1_hash vhdr;
 |  | ||||||
|   |  | ||||||
|          elem = virtqueue_pop(q->tx_vq, sizeof(VirtQueueElement)); |  | ||||||
|          if (!elem) { |  | ||||||
| @@ -2552,7 +2557,7 @@ static int32_t virtio_net_flush_tx(VirtIONetQueue *q)
 |  | ||||||
|          } |  | ||||||
|   |  | ||||||
|          if (n->has_vnet_hdr) { |  | ||||||
| -            if (iov_to_buf(out_sg, out_num, 0, &mhdr, n->guest_hdr_len) <
 |  | ||||||
| +            if (iov_to_buf(out_sg, out_num, 0, &vhdr, n->guest_hdr_len) <
 |  | ||||||
|                  n->guest_hdr_len) { |  | ||||||
|                  virtio_error(vdev, "virtio-net header incorrect"); |  | ||||||
|                  virtqueue_detach_element(q->tx_vq, elem, 0); |  | ||||||
| @@ -2560,8 +2565,8 @@ static int32_t virtio_net_flush_tx(VirtIONetQueue *q)
 |  | ||||||
|                  return -EINVAL; |  | ||||||
|              } |  | ||||||
|              if (n->needs_vnet_hdr_swap) { |  | ||||||
| -                virtio_net_hdr_swap(vdev, (void *) &mhdr);
 |  | ||||||
| -                sg2[0].iov_base = &mhdr;
 |  | ||||||
| +                virtio_net_hdr_swap(vdev, (void *) &vhdr);
 |  | ||||||
| +                sg2[0].iov_base = &vhdr;
 |  | ||||||
|                  sg2[0].iov_len = n->guest_hdr_len; |  | ||||||
|                  out_num = iov_copy(&sg2[1], ARRAY_SIZE(sg2) - 1, |  | ||||||
|                                     out_sg, out_num, |  | ||||||
| -- 
 |  | ||||||
| 2.41.0 |  | ||||||
| 
 |  | ||||||
| @ -1,49 +0,0 @@ | |||||||
| From a38e51982522910475ec051f81116639254a2955 Mon Sep 17 00:00:00 2001 |  | ||||||
| From: Gerd Hoffmann <kraxel@redhat.com> |  | ||||||
| Date: Thu, 30 May 2024 13:10:29 +0200 |  | ||||||
| Subject: [PATCH 5/5] vnc: increase max display size |  | ||||||
| MIME-Version: 1.0 |  | ||||||
| Content-Type: text/plain; charset=UTF-8 |  | ||||||
| Content-Transfer-Encoding: 8bit |  | ||||||
| 
 |  | ||||||
| RH-Author: Marc-André Lureau <marcandre.lureau@redhat.com> |  | ||||||
| RH-MergeRequest: 391: vnc: increase max display size |  | ||||||
| RH-Jira: RHEL-50854 |  | ||||||
| RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com> |  | ||||||
| RH-Commit: [1/1] 8d79bbc6949ca7264f6701121b47e946eb8ac824 |  | ||||||
| 
 |  | ||||||
| Resolves: |  | ||||||
| https://issues.redhat.com/browse/RHEL-50854 |  | ||||||
| 
 |  | ||||||
| It's 2024.  4k display resolutions are a thing these days. |  | ||||||
| Raise width and height limits of the qemu vnc server. |  | ||||||
| 
 |  | ||||||
| Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1596 |  | ||||||
| Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> |  | ||||||
| Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> |  | ||||||
| Message-ID: <20240530111029.1726329-1-kraxel@redhat.com> |  | ||||||
| 
 |  | ||||||
| (cherry picked from commit 1f1736a8f16d27a99abd371caaeedc10e6411d15) |  | ||||||
| Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> |  | ||||||
| ---
 |  | ||||||
|  ui/vnc.h | 4 ++-- |  | ||||||
|  1 file changed, 2 insertions(+), 2 deletions(-) |  | ||||||
| 
 |  | ||||||
| diff --git a/ui/vnc.h b/ui/vnc.h
 |  | ||||||
| index a7149831f9..4d44957cc2 100644
 |  | ||||||
| --- a/ui/vnc.h
 |  | ||||||
| +++ b/ui/vnc.h
 |  | ||||||
| @@ -81,8 +81,8 @@ typedef void VncSendHextileTile(VncState *vs,
 |  | ||||||
|   |  | ||||||
|  /* VNC_MAX_WIDTH must be a multiple of VNC_DIRTY_PIXELS_PER_BIT. */ |  | ||||||
|   |  | ||||||
| -#define VNC_MAX_WIDTH ROUND_UP(2560, VNC_DIRTY_PIXELS_PER_BIT)
 |  | ||||||
| -#define VNC_MAX_HEIGHT 2048
 |  | ||||||
| +#define VNC_MAX_WIDTH ROUND_UP(5120, VNC_DIRTY_PIXELS_PER_BIT)
 |  | ||||||
| +#define VNC_MAX_HEIGHT 2160
 |  | ||||||
|   |  | ||||||
|  /* VNC_DIRTY_BITS is the number of bits in the dirty bitmap. */ |  | ||||||
|  #define VNC_DIRTY_BITS (VNC_MAX_WIDTH / VNC_DIRTY_PIXELS_PER_BIT) |  | ||||||
| -- 
 |  | ||||||
| 2.39.3 |  | ||||||
| 
 |  | ||||||
| @ -83,7 +83,7 @@ Obsoletes: %1-rhev <= %{epoch}:%{version}-%{release} | |||||||
| Summary: QEMU is a machine emulator and virtualizer | Summary: QEMU is a machine emulator and virtualizer | ||||||
| Name: qemu-kvm | Name: qemu-kvm | ||||||
| Version: 6.2.0 | Version: 6.2.0 | ||||||
| Release: 53%{?rcrel}%{?dist}.4 | Release: 48%{?rcrel}%{?dist} | ||||||
| # Epoch because we pushed a qemu-1.0 package. AIUI this can't ever be dropped | # Epoch because we pushed a qemu-1.0 package. AIUI this can't ever be dropped | ||||||
| Epoch: 15 | Epoch: 15 | ||||||
| License: GPLv2 and GPLv2+ and CC-BY | License: GPLv2 and GPLv2+ and CC-BY | ||||||
| @ -841,68 +841,6 @@ Patch339: kvm-iotests-port-141-to-Python-for-reliable-QMP-testing.patch | |||||||
| Patch340: kvm-monitor-only-run-coroutine-commands-in-qemu_aio_cont.patch | Patch340: kvm-monitor-only-run-coroutine-commands-in-qemu_aio_cont.patch | ||||||
| # For RHEL-7353 - [qemu-kvm] no response with QMP command device_add when repeatedly hotplug/unplug virtio disks [RHEL-8] | # For RHEL-7353 - [qemu-kvm] no response with QMP command device_add when repeatedly hotplug/unplug virtio disks [RHEL-8] | ||||||
| Patch341: kvm-iotests-Make-144-deterministic-again.patch | Patch341: kvm-iotests-Make-144-deterministic-again.patch | ||||||
| # For RHEL-19628 - CVE-2023-6683 virt:rhel/qemu-kvm: QEMU: VNC: NULL pointer dereference in qemu_clipboard_request() [rhel-8] |  | ||||||
| Patch342: kvm-glib-compat-Introduce-g_memdup2-wrapper.patch |  | ||||||
| # For RHEL-19628 - CVE-2023-6683 virt:rhel/qemu-kvm: QEMU: VNC: NULL pointer dereference in qemu_clipboard_request() [rhel-8] |  | ||||||
| Patch343: kvm-ui-clipboard-mark-type-as-not-available-when-there-i.patch |  | ||||||
| # For RHEL-19496 - CVE-2023-6693 virt:rhel/qemu-kvm: QEMU: virtio-net: stack buffer overflow in virtio_net_flush_tx() [rhel-8] |  | ||||||
| Patch344: kvm-virtio-net-correctly-copy-vnet-header-when-flushing-.patch |  | ||||||
| # For RHEL-35616 - CVE-2024-4467 virt:rhel/qemu-kvm: QEMU: 'qemu-img info' leads to host file read/write [rhel-8.10.z] |  | ||||||
| Patch345: kvm-qcow2-Don-t-open-data_file-with-BDRV_O_NO_IO.patch |  | ||||||
| # For RHEL-35616 - CVE-2024-4467 virt:rhel/qemu-kvm: QEMU: 'qemu-img info' leads to host file read/write [rhel-8.10.z] |  | ||||||
| Patch346: kvm-iotests-244-Don-t-store-data-file-with-protocol-in-i.patch |  | ||||||
| # For RHEL-35616 - CVE-2024-4467 virt:rhel/qemu-kvm: QEMU: 'qemu-img info' leads to host file read/write [rhel-8.10.z] |  | ||||||
| Patch347: kvm-iotests-270-Don-t-store-data-file-with-json-prefix-i.patch |  | ||||||
| # For RHEL-35616 - CVE-2024-4467 virt:rhel/qemu-kvm: QEMU: 'qemu-img info' leads to host file read/write [rhel-8.10.z] |  | ||||||
| Patch348: kvm-block-introduce-bdrv_open_file_child-helper.patch |  | ||||||
| # For RHEL-35616 - CVE-2024-4467 virt:rhel/qemu-kvm: QEMU: 'qemu-img info' leads to host file read/write [rhel-8.10.z] |  | ||||||
| Patch349: kvm-block-Parse-filenames-only-when-explicitly-requested.patch |  | ||||||
| # For RHEL-32276 - CVE-2024-3446 virt:rhel/qemu-kvm: QEMU: virtio: DMA reentrancy issue leads to double free vulnerability [rhel-8] |  | ||||||
| Patch350: kvm-virtio-gpu-free-BHs-by-implementing-unrealize.patch |  | ||||||
| # For RHEL-32276 - CVE-2024-3446 virt:rhel/qemu-kvm: QEMU: virtio: DMA reentrancy issue leads to double free vulnerability [rhel-8] |  | ||||||
| Patch351: kvm-virtio-gpu-reset-gfx-resources-in-main-thread.patch |  | ||||||
| # For RHEL-32276 - CVE-2024-3446 virt:rhel/qemu-kvm: QEMU: virtio: DMA reentrancy issue leads to double free vulnerability [rhel-8] |  | ||||||
| Patch352: kvm-hw-virtio-Introduce-virtio_bh_new_guarded-helper.patch |  | ||||||
| # For RHEL-32276 - CVE-2024-3446 virt:rhel/qemu-kvm: QEMU: virtio: DMA reentrancy issue leads to double free vulnerability [rhel-8] |  | ||||||
| Patch353: kvm-hw-display-virtio-gpu-Protect-from-DMA-re-entrancy-b.patch |  | ||||||
| # For RHEL-32276 - CVE-2024-3446 virt:rhel/qemu-kvm: QEMU: virtio: DMA reentrancy issue leads to double free vulnerability [rhel-8] |  | ||||||
| Patch354: kvm-hw-char-virtio-serial-bus-Protect-from-DMA-re-entran.patch |  | ||||||
| # For RHEL-32276 - CVE-2024-3446 virt:rhel/qemu-kvm: QEMU: virtio: DMA reentrancy issue leads to double free vulnerability [rhel-8] |  | ||||||
| Patch355: kvm-hw-virtio-virtio-crypto-Protect-from-DMA-re-entrancy.patch |  | ||||||
| # For RHEL-52611 - CVE-2024-7409 virt:rhel/qemu-kvm: Denial of Service via Improper Synchronization in QEMU NBD Server During Socket Closure [rhel-8.10.z] |  | ||||||
| Patch356: kvm-nbd-server-Plumb-in-new-args-to-nbd_client_add.patch |  | ||||||
| # For RHEL-52611 - CVE-2024-7409 virt:rhel/qemu-kvm: Denial of Service via Improper Synchronization in QEMU NBD Server During Socket Closure [rhel-8.10.z] |  | ||||||
| Patch357: kvm-nbd-server-CVE-2024-7409-Cap-default-max-connections.patch |  | ||||||
| # For RHEL-52611 - CVE-2024-7409 virt:rhel/qemu-kvm: Denial of Service via Improper Synchronization in QEMU NBD Server During Socket Closure [rhel-8.10.z] |  | ||||||
| Patch358: kvm-nbd-server-CVE-2024-7409-Drop-non-negotiating-client.patch |  | ||||||
| # For RHEL-52611 - CVE-2024-7409 virt:rhel/qemu-kvm: Denial of Service via Improper Synchronization in QEMU NBD Server During Socket Closure [rhel-8.10.z] |  | ||||||
| Patch359: kvm-nbd-server-CVE-2024-7409-Close-stray-clients-at-serv.patch |  | ||||||
| # For RHEL-50854 - vnc: increase max display size to 4K |  | ||||||
| Patch360: kvm-vnc-increase-max-display-size.patch |  | ||||||
| # For RHEL-52611 - CVE-2024-7409 virt:rhel/qemu-kvm: Denial of Service via Improper Synchronization in QEMU NBD Server During Socket Closure [rhel-8.10.z] |  | ||||||
| Patch361: kvm-nbd-server-Favor-qemu_aio_context-over-iohandler-con.patch |  | ||||||
| # For RHEL-52611 - CVE-2024-7409 virt:rhel/qemu-kvm: Denial of Service via Improper Synchronization in QEMU NBD Server During Socket Closure [rhel-8.10.z] |  | ||||||
| Patch362: kvm-iotests-test-NBD-TLS-iothread.patch |  | ||||||
| # For RHEL-52611 - CVE-2024-7409 virt:rhel/qemu-kvm: Denial of Service via Improper Synchronization in QEMU NBD Server During Socket Closure [rhel-8.10.z] |  | ||||||
| Patch363: kvm-nbd-server-CVE-2024-7409-Avoid-use-after-free-when-c.patch |  | ||||||
| # For RHEL-60553 - Frequent VM pauses on OpenShift Virtualization with Portworx storage |  | ||||||
| Patch364: kvm-block-move-bdrv_qiov_is_aligned-to-file-posix.patch |  | ||||||
| # For RHEL-60553 - Frequent VM pauses on OpenShift Virtualization with Portworx storage |  | ||||||
| Patch365: kvm-block-use-the-request-length-for-iov-alignment.patch |  | ||||||
| # For RHEL-26197 - virtiofsd --help and manpage does not agree on --thread-pool-size default value |  | ||||||
| Patch366: kvm-Fix-thread-pool-size-default-value-in-the-man-page.patch |  | ||||||
| # For RHEL-59214 - qemu-ga cannot freeze filesystems with sentinelone |  | ||||||
| Patch367: kvm-qga-skip-bind-mounts-in-fs-list.patch |  | ||||||
| # For RHEL-88701 - [RHEL 8.10 qemu] KVM - Live migration of guest fails from z16-z17 [rhel-8.10.z] |  | ||||||
| Patch368: kvm-target-s390x-report-deprecated-props-in-cpu-model-ex.patch |  | ||||||
| # For RHEL-88701 - [RHEL 8.10 qemu] KVM - Live migration of guest fails from z16-z17 [rhel-8.10.z] |  | ||||||
| Patch369: kvm-target-s390x-flag-te-and-cte-as-deprecated.patch |  | ||||||
| # For RHEL-88701 - [RHEL 8.10 qemu] KVM - Live migration of guest fails from z16-z17 [rhel-8.10.z] |  | ||||||
| Patch370: kvm-target-s390x-filter-deprecated-properties-based-on-m.patch |  | ||||||
| # For RHEL-88701 - [RHEL 8.10 qemu] KVM - Live migration of guest fails from z16-z17 [rhel-8.10.z] |  | ||||||
| Patch371: kvm-target-s390x-move-deprecated-props-to-CpuModelExpans.patch |  | ||||||
| # For RHEL-88701 - [RHEL 8.10 qemu] KVM - Live migration of guest fails from z16-z17 [rhel-8.10.z] |  | ||||||
| Patch372: kvm-redhat-Adjust-indentation-in-qapi-machine-target.jso.patch |  | ||||||
| 
 | 
 | ||||||
| BuildRequires: wget | BuildRequires: wget | ||||||
| BuildRequires: rpm-build | BuildRequires: rpm-build | ||||||
| @ -2072,77 +2010,6 @@ sh %{_sysconfdir}/sysconfig/modules/kvm.modules &> /dev/null || : | |||||||
| 
 | 
 | ||||||
| 
 | 
 | ||||||
| %changelog | %changelog | ||||||
| * Mon May 05 2025 Jon Maloy <jmaloy@redhat.com> - 6.2.0-53.el8.4 |  | ||||||
| - kvm-target-s390x-report-deprecated-props-in-cpu-model-ex.patch [RHEL-88701] |  | ||||||
| - kvm-target-s390x-flag-te-and-cte-as-deprecated.patch [RHEL-88701] |  | ||||||
| - kvm-target-s390x-filter-deprecated-properties-based-on-m.patch [RHEL-88701] |  | ||||||
| - kvm-target-s390x-move-deprecated-props-to-CpuModelExpans.patch [RHEL-88701] |  | ||||||
| - kvm-redhat-Adjust-indentation-in-qapi-machine-target.jso.patch [RHEL-88701] |  | ||||||
| - Resolves: RHEL-88701 |  | ||||||
|   ([RHEL 8.10 qemu] KVM - Live migration of guest fails from z16-z17 [rhel-8.10.z]) |  | ||||||
| 
 |  | ||||||
| * Sun Jan 05 2025 Jon Maloy <jmaloy@redhat.com> - 6.2.0-53.el8.3 |  | ||||||
| - kvm-qga-skip-bind-mounts-in-fs-list.patch [RHEL-59214] |  | ||||||
| - Resolves: RHEL-59214 |  | ||||||
|   (qemu-ga cannot freeze filesystems with sentinelone) |  | ||||||
| 
 |  | ||||||
| * Tue Oct 15 2024 Jon Maloy <jmaloy@redhat.com> - 6.2.0-53.el8.2 |  | ||||||
| - kvm-Fix-thread-pool-size-default-value-in-the-man-page.patch [RHEL-26197] |  | ||||||
| - Resolves: RHEL-26197 |  | ||||||
|   (virtiofsd --help and manpage does not agree on --thread-pool-size default value) |  | ||||||
| 
 |  | ||||||
| * Tue Oct 08 2024 Jon Maloy <jmaloy@redhat.com> - 6.2.0-53.el8.1 |  | ||||||
| - kvm-block-move-bdrv_qiov_is_aligned-to-file-posix.patch [RHEL-60553] |  | ||||||
| - kvm-block-use-the-request-length-for-iov-alignment.patch [RHEL-60553] |  | ||||||
| - Resolves: RHEL-60553 |  | ||||||
|   (Frequent VM pauses on OpenShift Virtualization with Portworx storage) |  | ||||||
| 
 |  | ||||||
| * Thu Sep 05 2024 Miroslav Rezanina <mrezanin@redhat.com> - 6.2.0-53.el8 |  | ||||||
| - kvm-nbd-server-Favor-qemu_aio_context-over-iohandler-con.patch [RHEL-52611] |  | ||||||
| - kvm-iotests-test-NBD-TLS-iothread.patch [RHEL-52611] |  | ||||||
| - kvm-nbd-server-CVE-2024-7409-Avoid-use-after-free-when-c.patch [RHEL-52611] |  | ||||||
| - Resolves: RHEL-52611 |  | ||||||
|   (CVE-2024-7409 virt:rhel/qemu-kvm: Denial of Service via Improper Synchronization in QEMU NBD Server During Socket Closure [rhel-8.10.z]) |  | ||||||
| 
 |  | ||||||
| * Wed Aug 21 2024 Miroslav Rezanina <mrezanin@redhat.com> - 6.2.0-52.el8 |  | ||||||
| - kvm-nbd-server-Plumb-in-new-args-to-nbd_client_add.patch [RHEL-52611] |  | ||||||
| - kvm-nbd-server-CVE-2024-7409-Cap-default-max-connections.patch [RHEL-52611] |  | ||||||
| - kvm-nbd-server-CVE-2024-7409-Drop-non-negotiating-client.patch [RHEL-52611] |  | ||||||
| - kvm-nbd-server-CVE-2024-7409-Close-stray-clients-at-serv.patch [RHEL-52611] |  | ||||||
| - kvm-vnc-increase-max-display-size.patch [RHEL-50854] |  | ||||||
| - Resolves: RHEL-52611 |  | ||||||
|   (CVE-2024-7409 virt:rhel/qemu-kvm: Denial of Service via Improper Synchronization in QEMU NBD Server During Socket Closure [rhel-8.10.z]) |  | ||||||
| - Resolves: RHEL-50854 |  | ||||||
|   (vnc: increase max display size to 4K) |  | ||||||
| 
 |  | ||||||
| * Mon Jul 29 2024 Miroslav Rezanina <mrezanin@redhat.com> - 6.2.0-51.el8 |  | ||||||
| - kvm-virtio-gpu-free-BHs-by-implementing-unrealize.patch [RHEL-32276] |  | ||||||
| - kvm-virtio-gpu-reset-gfx-resources-in-main-thread.patch [RHEL-32276] |  | ||||||
| - kvm-hw-virtio-Introduce-virtio_bh_new_guarded-helper.patch [RHEL-32276] |  | ||||||
| - kvm-hw-display-virtio-gpu-Protect-from-DMA-re-entrancy-b.patch [RHEL-32276] |  | ||||||
| - kvm-hw-char-virtio-serial-bus-Protect-from-DMA-re-entran.patch [RHEL-32276] |  | ||||||
| - kvm-hw-virtio-virtio-crypto-Protect-from-DMA-re-entrancy.patch [RHEL-32276] |  | ||||||
| - Resolves: RHEL-32276 |  | ||||||
|   (CVE-2024-3446 virt:rhel/qemu-kvm: QEMU: virtio: DMA reentrancy issue leads to double free vulnerability [rhel-8]) |  | ||||||
| 
 |  | ||||||
| * Thu Jul 04 2024 Miroslav Rezanina <mrezanin@redhat.com> - 6.2.0-50 |  | ||||||
| - kvm-qcow2-Don-t-open-data_file-with-BDRV_O_NO_IO.patch [RHEL-35616] |  | ||||||
| - kvm-iotests-244-Don-t-store-data-file-with-protocol-in-i.patch [RHEL-35616] |  | ||||||
| - kvm-iotests-270-Don-t-store-data-file-with-json-prefix-i.patch [RHEL-35616] |  | ||||||
| - kvm-block-introduce-bdrv_open_file_child-helper.patch [RHEL-35616] |  | ||||||
| - kvm-block-Parse-filenames-only-when-explicitly-requested.patch [RHEL-35616] |  | ||||||
| - Resolves: RHEL-35616 |  | ||||||
|   (CVE-2024-4467 virt:rhel/qemu-kvm: QEMU: 'qemu-img info' leads to host file read/write [rhel-8.10.z]) |  | ||||||
| 
 |  | ||||||
| * Thu Mar 14 2024 Jon Maloy <jmaloy@redhat.com> - 6.2.0-49 |  | ||||||
| - kvm-glib-compat-Introduce-g_memdup2-wrapper.patch [RHEL-19628] |  | ||||||
| - kvm-ui-clipboard-mark-type-as-not-available-when-there-i.patch [RHEL-19628] |  | ||||||
| - kvm-virtio-net-correctly-copy-vnet-header-when-flushing-.patch [RHEL-19496] |  | ||||||
| - Resolves: RHEL-19628 |  | ||||||
|   (CVE-2023-6683 virt:rhel/qemu-kvm: QEMU: VNC: NULL pointer dereference in qemu_clipboard_request() [rhel-8]) |  | ||||||
| - Resolves: RHEL-19496 |  | ||||||
|   (CVE-2023-6693 virt:rhel/qemu-kvm: QEMU: virtio-net: stack buffer overflow in virtio_net_flush_tx() [rhel-8]) |  | ||||||
| 
 |  | ||||||
| * Mon Feb 26 2024 Miroslav Rezanina <mrezanin@redhat.com> - 6.2.0-48 | * Mon Feb 26 2024 Miroslav Rezanina <mrezanin@redhat.com> - 6.2.0-48 | ||||||
| - kvm-iotests-add-filter_qmp_generated_node_ids.patch [RHEL-7353] | - kvm-iotests-add-filter_qmp_generated_node_ids.patch [RHEL-7353] | ||||||
| - kvm-iotests-port-141-to-Python-for-reliable-QMP-testing.patch [RHEL-7353] | - kvm-iotests-port-141-to-Python-for-reliable-QMP-testing.patch [RHEL-7353] | ||||||
|  | |||||||
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