Fix coverity issue

Related: RHEL-39449
Following is the patch list:
xfsprogs-6.5.0-xfs.8-xfs-fix-bounds-check-in-xfs_defer_agfl_block.patch

Signed-off-by: Bill O'Donnell <bodonnel@redhat.com>
This commit is contained in:
Bill O'Donnell 2024-07-11 15:50:55 -05:00
parent c5efc0c41e
commit 5fec78a9af
2 changed files with 65 additions and 1 deletions

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@ -0,0 +1,57 @@
From d096b26c33a858ad88db98306057da67e6d18611 Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Wed, 6 Sep 2023 13:52:48 +0200
Subject: [PATCH] xfs: fix bounds check in xfs_defer_agfl_block()
Source kernel commit: 2bed0d82c2f78b91a0a9a5a73da57ee883a0c070
Need to happen before we allocate and then leak the xefi. Found by
coverity via an xfsprogs libxfs scan.
[djwong: This also fixes the type of the @agbno argument.]
Fixes: 7dfee17b13e5 ("xfs: validate block number being freed before adding to xefi")
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
---
libxfs/xfs_alloc.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
Index: xfsprogs-6.4.0/libxfs/xfs_alloc.c
===================================================================
--- xfsprogs-6.4.0.orig/libxfs/xfs_alloc.c
+++ xfsprogs-6.4.0/libxfs/xfs_alloc.c
@@ -2431,24 +2431,25 @@ static int
xfs_defer_agfl_block(
struct xfs_trans *tp,
xfs_agnumber_t agno,
- xfs_fsblock_t agbno,
+ xfs_agblock_t agbno,
struct xfs_owner_info *oinfo)
{
struct xfs_mount *mp = tp->t_mountp;
struct xfs_extent_free_item *xefi;
+ xfs_fsblock_t fsbno = XFS_AGB_TO_FSB(mp, agno, agbno);
ASSERT(xfs_extfree_item_cache != NULL);
ASSERT(oinfo != NULL);
+ if (XFS_IS_CORRUPT(mp, !xfs_verify_fsbno(mp, fsbno)))
+ return -EFSCORRUPTED;
+
xefi = kmem_cache_zalloc(xfs_extfree_item_cache,
GFP_KERNEL | __GFP_NOFAIL);
- xefi->xefi_startblock = XFS_AGB_TO_FSB(mp, agno, agbno);
+ xefi->xefi_startblock = fsbno;
xefi->xefi_blockcount = 1;
xefi->xefi_owner = oinfo->oi_owner;
- if (XFS_IS_CORRUPT(mp, !xfs_verify_fsbno(mp, xefi->xefi_startblock)))
- return -EFSCORRUPTED;
-
trace_xfs_agfl_free_defer(mp, agno, 0, agbno, 1);
xfs_extent_free_get_group(mp, xefi);

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@ -1,7 +1,7 @@
Summary: Utilities for managing the XFS filesystem
Name: xfsprogs
Version: 6.4.0
Release: 2%{?dist}
Release: 3%{?dist}
License: GPL+ and LGPLv2+
URL: https://xfs.wiki.kernel.org
Source0: http://kernel.org/pub/linux/utils/fs/xfs/xfsprogs/%{name}-%{version}.tar.xz
@ -36,6 +36,7 @@ Patch9: xfsprogs-6.5.0-xfs_fsr.xfs.8-xfs_fsr-replace-atoi-with-strtol.patch
Patch 10: xfsprogs-6.5.0-xfs_db.xfs.8-xfs_db-add-helper-for-flist_find_type-for-clearer-fi.patch
Patch 11: xfsprogs-6.5.0-xfs_repair.xfs.8-xfs_repair-catch-strtol-errors.patch
Patch 12: xfsprogs-rhelonly-xfs_db-fix-unitialized-variable-in-check_parents-function.patch
Patch 13: xfsprogs-6.5.0-xfs.8-xfs-fix-bounds-check-in-xfs_defer_agfl_block.patch
%description
A set of commands to use the XFS filesystem, including mkfs.xfs.
@ -147,6 +148,12 @@ install -m 0644 %{SOURCE3} %{buildroot}%{mkfsdir}
%{_libdir}/*.so
%changelog
* Thu Jul 11 2024 Bill O'Donnell <bodonnel@redhat.com> - 6.4.0-3
- Fix coverity issue
- Related: RHEL-39449
- Following is the patch list:
- xfsprogs-6.5.0-xfs.8-xfs-fix-bounds-check-in-xfs_defer_agfl_block.patch
* Wed Jun 26 2024 Bill O'Donnell <bodonnel@redhat.com> - 6.4.0-2
- Fix various CVE issues.
- Related: RHEL-32996