import glib2-2.56.4-10.el8_4
This commit is contained in:
parent
5b5d052d1d
commit
5934bb6e61
849
SOURCES/CVE-2021-27219.patch
Normal file
849
SOURCES/CVE-2021-27219.patch
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@ -0,0 +1,849 @@
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From 7b46597384de916b4027ebaff662d06ff3ea2bc8 Mon Sep 17 00:00:00 2001
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From: Philip Withnall <pwithnall@endlessos.org>
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Date: Thu, 4 Feb 2021 13:30:52 +0000
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Subject: [PATCH 1/6] gstrfuncs: Add internal g_memdup2() function
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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This will replace the existing `g_memdup()` function for use within
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GLib. It has an unavoidable security flaw of taking its `byte_size`
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argument as a `guint` rather than as a `gsize`. Most callers will
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expect it to be a `gsize`, and may pass in large values which could
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silently be truncated, resulting in an undersize allocation compared
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to what the caller expects.
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This could lead to a classic buffer overflow vulnerability for many
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callers of `g_memdup()`.
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`g_memdup2()`, in comparison, takes its `byte_size` as a `gsize`.
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Spotted by Kevin Backhouse of GHSL.
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In GLib 2.68, `g_memdup2()` will be a new public API. In this version
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for backport to older stable releases, it’s a new `static inline` API
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in a private header, so that use of `g_memdup()` within GLib can be
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fixed without adding a new API in a stable release series.
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Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
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Helps: CVE-2021-27219
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Helps: GHSL-2021-045
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Helps: #2319
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(cherry picked from commit 5e5f75a77e399c638be66d74e5daa8caeb433e00)
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---
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docs/reference/glib/meson.build | 1 +
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glib/gstrfuncsprivate.h | 55 +++++++++++++++++++++++++++++++++
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glib/meson.build | 1 +
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glib/tests/strfuncs.c | 23 ++++++++++++++
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4 files changed, 80 insertions(+)
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create mode 100644 glib/gstrfuncsprivate.h
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diff --git a/docs/reference/glib/meson.build b/docs/reference/glib/meson.build
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index f0f915e96..1a3680941 100644
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--- a/docs/reference/glib/meson.build
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+++ b/docs/reference/glib/meson.build
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@@ -20,6 +20,7 @@ if get_option('gtk_doc')
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'gprintfint.h',
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'gmirroringtable.h',
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'gscripttable.h',
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+ 'gstrfuncsprivate.h',
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'glib-mirroring-tab',
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'gnulib',
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'pcre',
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diff --git a/glib/gstrfuncsprivate.h b/glib/gstrfuncsprivate.h
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new file mode 100644
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index 000000000..85c88328a
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--- /dev/null
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+++ b/glib/gstrfuncsprivate.h
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@@ -0,0 +1,55 @@
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+/* GLIB - Library of useful routines for C programming
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+ * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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+ *
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+ * This library is free software; you can redistribute it and/or
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+ * modify it under the terms of the GNU Lesser General Public
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+ * License as published by the Free Software Foundation; either
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+ * version 2.1 of the License, or (at your option) any later version.
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+ *
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+ * This library is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ * Lesser General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU Lesser General Public
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+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
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+ */
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+
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+#include <glib.h>
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+#include <string.h>
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+
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+/*
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+ * g_memdup2:
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+ * @mem: (nullable): the memory to copy.
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+ * @byte_size: the number of bytes to copy.
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+ *
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+ * Allocates @byte_size bytes of memory, and copies @byte_size bytes into it
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+ * from @mem. If @mem is %NULL it returns %NULL.
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+ *
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+ * This replaces g_memdup(), which was prone to integer overflows when
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+ * converting the argument from a #gsize to a #guint.
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+ *
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+ * This static inline version is a backport of the new public API from
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+ * GLib 2.68, kept internal to GLib for backport to older stable releases.
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+ * See https://gitlab.gnome.org/GNOME/glib/-/issues/2319.
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+ *
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+ * Returns: (nullable): a pointer to the newly-allocated copy of the memory,
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+ * or %NULL if @mem is %NULL.
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+ * Since: 2.68
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+ */
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+static inline gpointer
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+g_memdup2 (gconstpointer mem,
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+ gsize byte_size)
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+{
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+ gpointer new_mem;
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+
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+ if (mem && byte_size != 0)
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+ {
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+ new_mem = g_malloc (byte_size);
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+ memcpy (new_mem, mem, byte_size);
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+ }
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+ else
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+ new_mem = NULL;
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+
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+ return new_mem;
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+}
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diff --git a/glib/meson.build b/glib/meson.build
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index a2f9da81c..481fd06ff 100644
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--- a/glib/meson.build
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+++ b/glib/meson.build
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@@ -167,6 +167,7 @@ glib_sources = files(
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'gslist.c',
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'gstdio.c',
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'gstrfuncs.c',
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+ 'gstrfuncsprivate.h',
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'gstring.c',
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'gstringchunk.c',
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'gtestutils.c',
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diff --git a/glib/tests/strfuncs.c b/glib/tests/strfuncs.c
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index 7e031bdb1..2aa252946 100644
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--- a/glib/tests/strfuncs.c
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+++ b/glib/tests/strfuncs.c
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@@ -32,6 +32,8 @@
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#include <string.h>
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#include "glib.h"
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+#include "gstrfuncsprivate.h"
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+
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#if defined (_MSC_VER) && (_MSC_VER <= 1800)
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#define isnan(x) _isnan(x)
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@@ -199,6 +201,26 @@ test_is_to_digit (void)
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#undef TEST_DIGIT
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}
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+/* Testing g_memdup2() function with various positive and negative cases */
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+static void
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+test_memdup2 (void)
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+{
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+ gchar *str_dup = NULL;
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+ const gchar *str = "The quick brown fox jumps over the lazy dog";
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+
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+ /* Testing negative cases */
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+ g_assert_null (g_memdup2 (NULL, 1024));
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+ g_assert_null (g_memdup2 (str, 0));
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+ g_assert_null (g_memdup2 (NULL, 0));
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+
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+ /* Testing normal usage cases */
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+ str_dup = g_memdup2 (str, strlen (str) + 1);
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+ g_assert_nonnull (str_dup);
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+ g_assert_cmpstr (str, ==, str_dup);
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+
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+ g_free (str_dup);
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+}
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+
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static void
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test_strdup (void)
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{
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@@ -1726,6 +1748,7 @@ main (int argc,
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g_test_init (&argc, &argv, NULL);
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g_test_add_func ("/strfuncs/test-is-to-digit", test_is_to_digit);
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+ g_test_add_func ("/strfuncs/memdup2", test_memdup2);
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g_test_add_func ("/strfuncs/strdup", test_strdup);
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g_test_add_func ("/strfuncs/strndup", test_strndup);
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g_test_add_func ("/strfuncs/strdup-printf", test_strdup_printf);
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--
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2.31.1
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From d6aab169954d9e6e77753dee68e1b3f5932f6dee Mon Sep 17 00:00:00 2001
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From: Philip Withnall <pwithnall@endlessos.org>
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Date: Thu, 4 Feb 2021 13:41:21 +0000
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Subject: [PATCH 2/6] glib: Use g_memdup2() instead of g_memdup() in obvious
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places
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Convert all the call sites which use `g_memdup()`’s length argument
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trivially (for example, by passing a `sizeof()` or an existing `gsize`
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variable), so that they use `g_memdup2()` instead.
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In almost all of these cases the use of `g_memdup()` would not have
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caused problems, but it will soon be deprecated, so best port away from
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it
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In particular, this fixes an overflow within `g_bytes_new()`, identified
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as GHSL-2021-045 (aka CVE-2021-27219) by GHSL team member Kevin Backhouse.
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Adapted for GLib 2.58 by Simon McVittie.
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Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
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Fixes: CVE-2021-27219
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Fixes: GHSL-2021-045
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Helps: #2319
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(cherry picked from commit 0736b7c1e7cf4232c5d7eb2b0fbfe9be81bd3baa)
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[Backport to 2.58: Omit changes to ghash.c, will be a separate commit]
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[Backport to 2.58: Omit changes to giochannel.c, not needed in this branch]
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[Backport to 2.58: Omit changes to uri test, not needed in this branch]
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Signed-off-by: Simon McVittie <smcv@collabora.com>
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---
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glib/gbytes.c | 6 ++++--
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glib/gdir.c | 3 ++-
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glib/gslice.c | 3 ++-
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glib/gtestutils.c | 3 ++-
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glib/gvariant.c | 7 ++++---
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||||
glib/gvarianttype.c | 3 ++-
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glib/tests/array-test.c | 2 +-
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glib/tests/option-context.c | 6 ++++--
|
||||
8 files changed, 21 insertions(+), 12 deletions(-)
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|
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diff --git a/glib/gbytes.c b/glib/gbytes.c
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index 3b14a51cd..5141170d7 100644
|
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--- a/glib/gbytes.c
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||||
+++ b/glib/gbytes.c
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@@ -33,6 +33,8 @@
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|
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#include <string.h>
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+#include "gstrfuncsprivate.h"
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+
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/**
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* GBytes:
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*
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@@ -94,7 +96,7 @@ g_bytes_new (gconstpointer data,
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{
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g_return_val_if_fail (data != NULL || size == 0, NULL);
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- return g_bytes_new_take (g_memdup (data, size), size);
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+ return g_bytes_new_take (g_memdup2 (data, size), size);
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}
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||||
|
||||
/**
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||||
@@ -490,7 +492,7 @@ g_bytes_unref_to_data (GBytes *bytes,
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* Copy: Non g_malloc (or compatible) allocator, or static memory,
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* so we have to copy, and then unref.
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*/
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- result = g_memdup (bytes->data, bytes->size);
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+ result = g_memdup2 (bytes->data, bytes->size);
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*size = bytes->size;
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g_bytes_unref (bytes);
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}
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diff --git a/glib/gdir.c b/glib/gdir.c
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index cb4ad0b2f..9d955d57f 100644
|
||||
--- a/glib/gdir.c
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||||
+++ b/glib/gdir.c
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||||
@@ -37,6 +37,7 @@
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||||
#include "gconvert.h"
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||||
#include "gfileutils.h"
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#include "gstrfuncs.h"
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||||
+#include "gstrfuncsprivate.h"
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||||
#include "gtestutils.h"
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||||
#include "glibintl.h"
|
||||
|
||||
@@ -113,7 +114,7 @@ g_dir_open_with_errno (const gchar *path,
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||||
return NULL;
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||||
#endif
|
||||
|
||||
- return g_memdup (&dir, sizeof dir);
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||||
+ return g_memdup2 (&dir, sizeof dir);
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||||
}
|
||||
|
||||
/**
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||||
diff --git a/glib/gslice.c b/glib/gslice.c
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||||
index 454c8a602..8e2359515 100644
|
||||
--- a/glib/gslice.c
|
||||
+++ b/glib/gslice.c
|
||||
@@ -45,6 +45,7 @@
|
||||
#include "gmain.h"
|
||||
#include "gmem.h" /* gslice.h */
|
||||
#include "gstrfuncs.h"
|
||||
+#include "gstrfuncsprivate.h"
|
||||
#include "gutils.h"
|
||||
#include "gtrashstack.h"
|
||||
#include "gtestutils.h"
|
||||
@@ -352,7 +353,7 @@ g_slice_get_config_state (GSliceConfig ckey,
|
||||
array[i++] = allocator->contention_counters[address];
|
||||
array[i++] = allocator_get_magazine_threshold (allocator, address);
|
||||
*n_values = i;
|
||||
- return g_memdup (array, sizeof (array[0]) * *n_values);
|
||||
+ return g_memdup2 (array, sizeof (array[0]) * *n_values);
|
||||
default:
|
||||
return NULL;
|
||||
}
|
||||
diff --git a/glib/gtestutils.c b/glib/gtestutils.c
|
||||
index 0447dcda5..14e071fce 100644
|
||||
--- a/glib/gtestutils.c
|
||||
+++ b/glib/gtestutils.c
|
||||
@@ -49,6 +49,7 @@
|
||||
#include "gpattern.h"
|
||||
#include "grand.h"
|
||||
#include "gstrfuncs.h"
|
||||
+#include "gstrfuncsprivate.h"
|
||||
#include "gtimer.h"
|
||||
#include "gslice.h"
|
||||
#include "gspawn.h"
|
||||
@@ -3397,7 +3398,7 @@ g_test_log_extract (GTestLogBuffer *tbuffer)
|
||||
if (p <= tbuffer->data->str + mlength)
|
||||
{
|
||||
g_string_erase (tbuffer->data, 0, mlength);
|
||||
- tbuffer->msgs = g_slist_prepend (tbuffer->msgs, g_memdup (&msg, sizeof (msg)));
|
||||
+ tbuffer->msgs = g_slist_prepend (tbuffer->msgs, g_memdup2 (&msg, sizeof (msg)));
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
diff --git a/glib/gvariant.c b/glib/gvariant.c
|
||||
index 8be9ce798..45a1a73dc 100644
|
||||
--- a/glib/gvariant.c
|
||||
+++ b/glib/gvariant.c
|
||||
@@ -33,6 +33,7 @@
|
||||
|
||||
#include <string.h>
|
||||
|
||||
+#include "gstrfuncsprivate.h"
|
||||
|
||||
/**
|
||||
* SECTION:gvariant
|
||||
@@ -720,7 +721,7 @@ g_variant_new_variant (GVariant *value)
|
||||
g_variant_ref_sink (value);
|
||||
|
||||
return g_variant_new_from_children (G_VARIANT_TYPE_VARIANT,
|
||||
- g_memdup (&value, sizeof value),
|
||||
+ g_memdup2 (&value, sizeof value),
|
||||
1, g_variant_is_trusted (value));
|
||||
}
|
||||
|
||||
@@ -1224,7 +1225,7 @@ g_variant_new_fixed_array (const GVariantType *element_type,
|
||||
return NULL;
|
||||
}
|
||||
|
||||
- data = g_memdup (elements, n_elements * element_size);
|
||||
+ data = g_memdup2 (elements, n_elements * element_size);
|
||||
value = g_variant_new_from_data (array_type, data,
|
||||
n_elements * element_size,
|
||||
FALSE, g_free, data);
|
||||
@@ -1901,7 +1902,7 @@ g_variant_dup_bytestring (GVariant *value,
|
||||
if (length)
|
||||
*length = size;
|
||||
|
||||
- return g_memdup (original, size + 1);
|
||||
+ return g_memdup2 (original, size + 1);
|
||||
}
|
||||
|
||||
/**
|
||||
diff --git a/glib/gvarianttype.c b/glib/gvarianttype.c
|
||||
index c8433e65a..dbbf7d2d1 100644
|
||||
--- a/glib/gvarianttype.c
|
||||
+++ b/glib/gvarianttype.c
|
||||
@@ -28,6 +28,7 @@
|
||||
|
||||
#include <string.h>
|
||||
|
||||
+#include "gstrfuncsprivate.h"
|
||||
|
||||
/**
|
||||
* SECTION:gvarianttype
|
||||
@@ -1174,7 +1175,7 @@ g_variant_type_new_tuple (const GVariantType * const *items,
|
||||
g_assert (offset < sizeof buffer);
|
||||
buffer[offset++] = ')';
|
||||
|
||||
- return (GVariantType *) g_memdup (buffer, offset);
|
||||
+ return (GVariantType *) g_memdup2 (buffer, offset);
|
||||
}
|
||||
|
||||
/**
|
||||
--
|
||||
2.31.1
|
||||
|
||||
From 7e2c2a07508a97b9d75e402afe4749b02a34dd8b Mon Sep 17 00:00:00 2001
|
||||
From: Simon McVittie <smcv@collabora.com>
|
||||
Date: Thu, 18 Mar 2021 10:31:00 +0000
|
||||
Subject: [PATCH 3/6] ghash: Use g_memdup2() instead of g_memdup()
|
||||
|
||||
Backport of part of commit 0736b7c1e7cf4232c5d7eb2b0fbfe9be81bd3baa
|
||||
to the simpler structure of the GHashTable code in glib-2-58.
|
||||
|
||||
Helps: #2319
|
||||
Signed-off-by: Simon McVittie <smcv@collabora.com>
|
||||
---
|
||||
glib/ghash.c | 3 ++-
|
||||
1 file changed, 2 insertions(+), 1 deletion(-)
|
||||
|
||||
diff --git a/glib/ghash.c b/glib/ghash.c
|
||||
index 6bb04a50d..608d136f4 100644
|
||||
--- a/glib/ghash.c
|
||||
+++ b/glib/ghash.c
|
||||
@@ -34,6 +34,7 @@
|
||||
|
||||
#include "glib-private.h"
|
||||
#include "gstrfuncs.h"
|
||||
+#include "gstrfuncsprivate.h"
|
||||
#include "gatomic.h"
|
||||
#include "gtestutils.h"
|
||||
#include "gslice.h"
|
||||
@@ -967,7 +968,7 @@ g_hash_table_insert_node (GHashTable *hash_table,
|
||||
* split the table.
|
||||
*/
|
||||
if (G_UNLIKELY (hash_table->keys == hash_table->values && hash_table->keys[node_index] != new_value))
|
||||
- hash_table->values = g_memdup (hash_table->keys, sizeof (gpointer) * hash_table->size);
|
||||
+ hash_table->values = g_memdup2 (hash_table->keys, sizeof (gpointer) * hash_table->size);
|
||||
|
||||
/* Step 3: Actually do the write */
|
||||
hash_table->values[node_index] = new_value;
|
||||
--
|
||||
2.31.1
|
||||
|
||||
From 9e0c87610dccd1b0eaca28a3baa521ea6a24f46b Mon Sep 17 00:00:00 2001
|
||||
From: Philip Withnall <pwithnall@endlessos.org>
|
||||
Date: Thu, 4 Feb 2021 13:39:25 +0000
|
||||
Subject: [PATCH 4/6] gobject: Use g_memdup2() instead of g_memdup() in obvious
|
||||
places
|
||||
MIME-Version: 1.0
|
||||
Content-Type: text/plain; charset=UTF-8
|
||||
Content-Transfer-Encoding: 8bit
|
||||
|
||||
Convert all the call sites which use `g_memdup()`’s length argument
|
||||
trivially (for example, by passing a `sizeof()`), so that they use
|
||||
`g_memdup2()` instead.
|
||||
|
||||
In almost all of these cases the use of `g_memdup()` would not have
|
||||
caused problems, but it will soon be deprecated, so best port away from
|
||||
it.
|
||||
|
||||
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
|
||||
Helps: #2319
|
||||
(cherry picked from commit 6110caea45b235420b98cd41d845cc92238f6781)
|
||||
---
|
||||
gobject/gsignal.c | 3 ++-
|
||||
gobject/gtype.c | 9 +++++----
|
||||
gobject/gtypemodule.c | 3 ++-
|
||||
gobject/tests/param.c | 4 +++-
|
||||
4 files changed, 12 insertions(+), 7 deletions(-)
|
||||
|
||||
diff --git a/gobject/gsignal.c b/gobject/gsignal.c
|
||||
index b22dfcca8..92555eb60 100644
|
||||
--- a/gobject/gsignal.c
|
||||
+++ b/gobject/gsignal.c
|
||||
@@ -28,6 +28,7 @@
|
||||
#include <signal.h>
|
||||
|
||||
#include "gsignal.h"
|
||||
+#include "gstrfuncsprivate.h"
|
||||
#include "gtype-private.h"
|
||||
#include "gbsearcharray.h"
|
||||
#include "gvaluecollector.h"
|
||||
@@ -1724,7 +1725,7 @@ g_signal_newv (const gchar *signal_name,
|
||||
node->single_va_closure_is_valid = FALSE;
|
||||
node->flags = signal_flags & G_SIGNAL_FLAGS_MASK;
|
||||
node->n_params = n_params;
|
||||
- node->param_types = g_memdup (param_types, sizeof (GType) * n_params);
|
||||
+ node->param_types = g_memdup2 (param_types, sizeof (GType) * n_params);
|
||||
node->return_type = return_type;
|
||||
node->class_closure_bsa = NULL;
|
||||
if (accumulator)
|
||||
diff --git a/gobject/gtype.c b/gobject/gtype.c
|
||||
index 275a8b60b..9e663ce52 100644
|
||||
--- a/gobject/gtype.c
|
||||
+++ b/gobject/gtype.c
|
||||
@@ -33,6 +33,7 @@
|
||||
|
||||
#include "glib-private.h"
|
||||
#include "gconstructor.h"
|
||||
+#include "gstrfuncsprivate.h"
|
||||
|
||||
#ifdef G_OS_WIN32
|
||||
#include <windows.h>
|
||||
@@ -1471,7 +1472,7 @@ type_add_interface_Wm (TypeNode *node,
|
||||
iholder->next = iface_node_get_holders_L (iface);
|
||||
iface_node_set_holders_W (iface, iholder);
|
||||
iholder->instance_type = NODE_TYPE (node);
|
||||
- iholder->info = info ? g_memdup (info, sizeof (*info)) : NULL;
|
||||
+ iholder->info = info ? g_memdup2 (info, sizeof (*info)) : NULL;
|
||||
iholder->plugin = plugin;
|
||||
|
||||
/* create an iface entry for this type */
|
||||
@@ -1732,7 +1733,7 @@ type_iface_retrieve_holder_info_Wm (TypeNode *iface,
|
||||
INVALID_RECURSION ("g_type_plugin_*", iholder->plugin, NODE_NAME (iface));
|
||||
|
||||
check_interface_info_I (iface, instance_type, &tmp_info);
|
||||
- iholder->info = g_memdup (&tmp_info, sizeof (tmp_info));
|
||||
+ iholder->info = g_memdup2 (&tmp_info, sizeof (tmp_info));
|
||||
}
|
||||
|
||||
return iholder; /* we don't modify write lock upon returning NULL */
|
||||
@@ -2013,10 +2014,10 @@ type_iface_vtable_base_init_Wm (TypeNode *iface,
|
||||
IFaceEntry *pentry = type_lookup_iface_entry_L (pnode, iface);
|
||||
|
||||
if (pentry)
|
||||
- vtable = g_memdup (pentry->vtable, iface->data->iface.vtable_size);
|
||||
+ vtable = g_memdup2 (pentry->vtable, iface->data->iface.vtable_size);
|
||||
}
|
||||
if (!vtable)
|
||||
- vtable = g_memdup (iface->data->iface.dflt_vtable, iface->data->iface.vtable_size);
|
||||
+ vtable = g_memdup2 (iface->data->iface.dflt_vtable, iface->data->iface.vtable_size);
|
||||
entry->vtable = vtable;
|
||||
vtable->g_type = NODE_TYPE (iface);
|
||||
vtable->g_instance_type = NODE_TYPE (node);
|
||||
diff --git a/gobject/gtypemodule.c b/gobject/gtypemodule.c
|
||||
index c67f789b1..cf877bc0b 100644
|
||||
--- a/gobject/gtypemodule.c
|
||||
+++ b/gobject/gtypemodule.c
|
||||
@@ -19,6 +19,7 @@
|
||||
|
||||
#include <stdlib.h>
|
||||
|
||||
+#include "gstrfuncsprivate.h"
|
||||
#include "gtypeplugin.h"
|
||||
#include "gtypemodule.h"
|
||||
|
||||
@@ -436,7 +437,7 @@ g_type_module_register_type (GTypeModule *module,
|
||||
module_type_info->loaded = TRUE;
|
||||
module_type_info->info = *type_info;
|
||||
if (type_info->value_table)
|
||||
- module_type_info->info.value_table = g_memdup (type_info->value_table,
|
||||
+ module_type_info->info.value_table = g_memdup2 (type_info->value_table,
|
||||
sizeof (GTypeValueTable));
|
||||
|
||||
return module_type_info->type;
|
||||
diff --git a/gobject/tests/param.c b/gobject/tests/param.c
|
||||
index 758289bf8..971cff162 100644
|
||||
--- a/gobject/tests/param.c
|
||||
+++ b/gobject/tests/param.c
|
||||
@@ -2,6 +2,8 @@
|
||||
#include <glib-object.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
+#include "gstrfuncsprivate.h"
|
||||
+
|
||||
static void
|
||||
test_param_value (void)
|
||||
{
|
||||
@@ -851,7 +853,7 @@ main (int argc, char *argv[])
|
||||
test_path = g_strdup_printf ("/param/implement/subprocess/%d-%d-%d-%d",
|
||||
data.change_this_flag, data.change_this_type,
|
||||
data.use_this_flag, data.use_this_type);
|
||||
- test_data = g_memdup (&data, sizeof (TestParamImplementData));
|
||||
+ test_data = g_memdup2 (&data, sizeof (TestParamImplementData));
|
||||
g_test_add_data_func_full (test_path, test_data, test_param_implement_child, g_free);
|
||||
g_free (test_path);
|
||||
}
|
||||
--
|
||||
2.31.1
|
||||
|
||||
From d3f7a79540fc1e85eb82c2987e9f7e2dbd93ff74 Mon Sep 17 00:00:00 2001
|
||||
From: Philip Withnall <pwithnall@endlessos.org>
|
||||
Date: Thu, 4 Feb 2021 13:37:56 +0000
|
||||
Subject: [PATCH 5/6] gio: Use g_memdup2() instead of g_memdup() in obvious
|
||||
places
|
||||
MIME-Version: 1.0
|
||||
Content-Type: text/plain; charset=UTF-8
|
||||
Content-Transfer-Encoding: 8bit
|
||||
|
||||
Convert all the call sites which use `g_memdup()`’s length argument
|
||||
trivially (for example, by passing a `sizeof()`), so that they use
|
||||
`g_memdup2()` instead.
|
||||
|
||||
In almost all of these cases the use of `g_memdup()` would not have
|
||||
caused problems, but it will soon be deprecated, so best port away from
|
||||
it.
|
||||
|
||||
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
|
||||
Helps: #2319
|
||||
(cherry picked from commit be8834340a2d928ece82025463ae23dee2c333d0)
|
||||
---
|
||||
gio/gdbusconnection.c | 5 +++--
|
||||
gio/gdbusinterfaceskeleton.c | 3 ++-
|
||||
gio/gfile.c | 7 ++++---
|
||||
gio/gsettingsschema.c | 5 +++--
|
||||
gio/gwin32registrykey.c | 8 +++++---
|
||||
gio/tests/async-close-output-stream.c | 6 ++++--
|
||||
gio/tests/gdbus-export.c | 5 +++--
|
||||
gio/win32/gwinhttpfile.c | 9 +++++----
|
||||
8 files changed, 29 insertions(+), 19 deletions(-)
|
||||
|
||||
diff --git a/gio/gdbusconnection.c b/gio/gdbusconnection.c
|
||||
index 6f7e5fefc..117c8df35 100644
|
||||
--- a/gio/gdbusconnection.c
|
||||
+++ b/gio/gdbusconnection.c
|
||||
@@ -119,6 +119,7 @@
|
||||
#include "gasyncinitable.h"
|
||||
#include "giostream.h"
|
||||
#include "gasyncresult.h"
|
||||
+#include "gstrfuncsprivate.h"
|
||||
#include "gtask.h"
|
||||
|
||||
#ifdef G_OS_UNIX
|
||||
@@ -3970,7 +3971,7 @@ _g_dbus_interface_vtable_copy (const GDBusInterfaceVTable *vtable)
|
||||
/* Don't waste memory by copying padding - remember to update this
|
||||
* when changing struct _GDBusInterfaceVTable in gdbusconnection.h
|
||||
*/
|
||||
- return g_memdup ((gconstpointer) vtable, 3 * sizeof (gpointer));
|
||||
+ return g_memdup2 ((gconstpointer) vtable, 3 * sizeof (gpointer));
|
||||
}
|
||||
|
||||
static void
|
||||
@@ -3987,7 +3988,7 @@ _g_dbus_subtree_vtable_copy (const GDBusSubtreeVTable *vtable)
|
||||
/* Don't waste memory by copying padding - remember to update this
|
||||
* when changing struct _GDBusSubtreeVTable in gdbusconnection.h
|
||||
*/
|
||||
- return g_memdup ((gconstpointer) vtable, 3 * sizeof (gpointer));
|
||||
+ return g_memdup2 ((gconstpointer) vtable, 3 * sizeof (gpointer));
|
||||
}
|
||||
|
||||
static void
|
||||
diff --git a/gio/gdbusinterfaceskeleton.c b/gio/gdbusinterfaceskeleton.c
|
||||
index 96bd520aa..672604c49 100644
|
||||
--- a/gio/gdbusinterfaceskeleton.c
|
||||
+++ b/gio/gdbusinterfaceskeleton.c
|
||||
@@ -27,6 +27,7 @@
|
||||
#include "gdbusprivate.h"
|
||||
#include "gdbusmethodinvocation.h"
|
||||
#include "gdbusconnection.h"
|
||||
+#include "gstrfuncsprivate.h"
|
||||
#include "gtask.h"
|
||||
#include "gioerror.h"
|
||||
|
||||
@@ -697,7 +698,7 @@ add_connection_locked (GDBusInterfaceSkeleton *interface_,
|
||||
* properly before building the hooked_vtable, so we create it
|
||||
* once at the last minute.
|
||||
*/
|
||||
- interface_->priv->hooked_vtable = g_memdup (g_dbus_interface_skeleton_get_vtable (interface_), sizeof (GDBusInterfaceVTable));
|
||||
+ interface_->priv->hooked_vtable = g_memdup2 (g_dbus_interface_skeleton_get_vtable (interface_), sizeof (GDBusInterfaceVTable));
|
||||
interface_->priv->hooked_vtable->method_call = skeleton_intercept_handle_method_call;
|
||||
}
|
||||
|
||||
diff --git a/gio/gfile.c b/gio/gfile.c
|
||||
index ff313ebf8..29ebaaa62 100644
|
||||
--- a/gio/gfile.c
|
||||
+++ b/gio/gfile.c
|
||||
@@ -60,6 +60,7 @@
|
||||
#include "gasyncresult.h"
|
||||
#include "gioerror.h"
|
||||
#include "glibintl.h"
|
||||
+#include "gstrfuncsprivate.h"
|
||||
|
||||
|
||||
/**
|
||||
@@ -7734,7 +7735,7 @@ measure_disk_usage_progress (gboolean reporting,
|
||||
g_main_context_invoke_full (g_task_get_context (task),
|
||||
g_task_get_priority (task),
|
||||
measure_disk_usage_invoke_progress,
|
||||
- g_memdup (&progress, sizeof progress),
|
||||
+ g_memdup2 (&progress, sizeof progress),
|
||||
g_free);
|
||||
}
|
||||
|
||||
@@ -7752,7 +7753,7 @@ measure_disk_usage_thread (GTask *task,
|
||||
data->progress_callback ? measure_disk_usage_progress : NULL, task,
|
||||
&result.disk_usage, &result.num_dirs, &result.num_files,
|
||||
&error))
|
||||
- g_task_return_pointer (task, g_memdup (&result, sizeof result), g_free);
|
||||
+ g_task_return_pointer (task, g_memdup2 (&result, sizeof result), g_free);
|
||||
else
|
||||
g_task_return_error (task, error);
|
||||
}
|
||||
@@ -7776,7 +7777,7 @@ g_file_real_measure_disk_usage_async (GFile *file,
|
||||
|
||||
task = g_task_new (file, cancellable, callback, user_data);
|
||||
g_task_set_source_tag (task, g_file_real_measure_disk_usage_async);
|
||||
- g_task_set_task_data (task, g_memdup (&data, sizeof data), g_free);
|
||||
+ g_task_set_task_data (task, g_memdup2 (&data, sizeof data), g_free);
|
||||
g_task_set_priority (task, io_priority);
|
||||
|
||||
g_task_run_in_thread (task, measure_disk_usage_thread);
|
||||
diff --git a/gio/gsettingsschema.c b/gio/gsettingsschema.c
|
||||
index 17b7e3b01..499944395 100644
|
||||
--- a/gio/gsettingsschema.c
|
||||
+++ b/gio/gsettingsschema.c
|
||||
@@ -20,6 +20,7 @@
|
||||
|
||||
#include "gsettingsschema-internal.h"
|
||||
#include "gsettings.h"
|
||||
+#include "gstrfuncsprivate.h"
|
||||
|
||||
#include "gvdb/gvdb-reader.h"
|
||||
#include "strinfo.c"
|
||||
@@ -1054,9 +1055,9 @@ g_settings_schema_list_children (GSettingsSchema *schema)
|
||||
|
||||
if (g_str_has_suffix (key, "/"))
|
||||
{
|
||||
- gint length = strlen (key);
|
||||
+ gsize length = strlen (key);
|
||||
|
||||
- strv[j] = g_memdup (key, length);
|
||||
+ strv[j] = g_memdup2 (key, length);
|
||||
strv[j][length - 1] = '\0';
|
||||
j++;
|
||||
}
|
||||
diff --git a/gio/gwin32registrykey.c b/gio/gwin32registrykey.c
|
||||
index c19fede4e..619fd48af 100644
|
||||
--- a/gio/gwin32registrykey.c
|
||||
+++ b/gio/gwin32registrykey.c
|
||||
@@ -28,6 +28,8 @@
|
||||
#include <ntstatus.h>
|
||||
#include <winternl.h>
|
||||
|
||||
+#include "gstrfuncsprivate.h"
|
||||
+
|
||||
#ifndef _WDMDDK_
|
||||
typedef enum _KEY_INFORMATION_CLASS {
|
||||
KeyBasicInformation,
|
||||
@@ -247,7 +249,7 @@ g_win32_registry_value_iter_copy (const GWin32RegistryValueIter *iter)
|
||||
new_iter->value_name_size = iter->value_name_size;
|
||||
|
||||
if (iter->value_data != NULL)
|
||||
- new_iter->value_data = g_memdup (iter->value_data, iter->value_data_size);
|
||||
+ new_iter->value_data = g_memdup2 (iter->value_data, iter->value_data_size);
|
||||
|
||||
new_iter->value_data_size = iter->value_data_size;
|
||||
|
||||
@@ -268,8 +270,8 @@ g_win32_registry_value_iter_copy (const GWin32RegistryValueIter *iter)
|
||||
new_iter->value_data_expanded_charsize = iter->value_data_expanded_charsize;
|
||||
|
||||
if (iter->value_data_expanded_u8 != NULL)
|
||||
- new_iter->value_data_expanded_u8 = g_memdup (iter->value_data_expanded_u8,
|
||||
- iter->value_data_expanded_charsize);
|
||||
+ new_iter->value_data_expanded_u8 = g_memdup2 (iter->value_data_expanded_u8,
|
||||
+ iter->value_data_expanded_charsize);
|
||||
|
||||
new_iter->value_data_expanded_u8_size = iter->value_data_expanded_charsize;
|
||||
|
||||
diff --git a/gio/tests/async-close-output-stream.c b/gio/tests/async-close-output-stream.c
|
||||
index 5f6620275..d3f97a119 100644
|
||||
--- a/gio/tests/async-close-output-stream.c
|
||||
+++ b/gio/tests/async-close-output-stream.c
|
||||
@@ -24,6 +24,8 @@
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
+#include "gstrfuncsprivate.h"
|
||||
+
|
||||
#define DATA_TO_WRITE "Hello world\n"
|
||||
|
||||
typedef struct
|
||||
@@ -147,9 +149,9 @@ prepare_data (SetupData *data,
|
||||
|
||||
data->expected_size = g_memory_output_stream_get_data_size (G_MEMORY_OUTPUT_STREAM (data->data_stream));
|
||||
|
||||
- g_assert_cmpint (data->expected_size, >, 0);
|
||||
+ g_assert_cmpuint (data->expected_size, >, 0);
|
||||
|
||||
- data->expected_output = g_memdup (written, (guint)data->expected_size);
|
||||
+ data->expected_output = g_memdup2 (written, data->expected_size);
|
||||
|
||||
/* then recreate the streams and prepare them for the asynchronous close */
|
||||
destroy_streams (data);
|
||||
diff --git a/gio/tests/gdbus-export.c b/gio/tests/gdbus-export.c
|
||||
index ef0dddeee..a3c842360 100644
|
||||
--- a/gio/tests/gdbus-export.c
|
||||
+++ b/gio/tests/gdbus-export.c
|
||||
@@ -23,6 +23,7 @@
|
||||
#include <string.h>
|
||||
|
||||
#include "gdbus-tests.h"
|
||||
+#include "gstrfuncsprivate.h"
|
||||
|
||||
/* all tests rely on a shared mainloop */
|
||||
static GMainLoop *loop = NULL;
|
||||
@@ -652,7 +653,7 @@ subtree_introspect (GDBusConnection *connection,
|
||||
g_assert_not_reached ();
|
||||
}
|
||||
|
||||
- return g_memdup (interfaces, 2 * sizeof (void *));
|
||||
+ return g_memdup2 (interfaces, 2 * sizeof (void *));
|
||||
}
|
||||
|
||||
static const GDBusInterfaceVTable *
|
||||
@@ -708,7 +709,7 @@ dynamic_subtree_introspect (GDBusConnection *connection,
|
||||
{
|
||||
const GDBusInterfaceInfo *interfaces[2] = { &dyna_interface_info, NULL };
|
||||
|
||||
- return g_memdup (interfaces, 2 * sizeof (void *));
|
||||
+ return g_memdup2 (interfaces, 2 * sizeof (void *));
|
||||
}
|
||||
|
||||
static const GDBusInterfaceVTable *
|
||||
diff --git a/gio/win32/gwinhttpfile.c b/gio/win32/gwinhttpfile.c
|
||||
index d5df16d91..f424d21cc 100644
|
||||
--- a/gio/win32/gwinhttpfile.c
|
||||
+++ b/gio/win32/gwinhttpfile.c
|
||||
@@ -29,6 +29,7 @@
|
||||
#include "gio/gfile.h"
|
||||
#include "gio/gfileattribute.h"
|
||||
#include "gio/gfileinfo.h"
|
||||
+#include "gstrfuncsprivate.h"
|
||||
#include "gwinhttpfile.h"
|
||||
#include "gwinhttpfileinputstream.h"
|
||||
#include "gwinhttpfileoutputstream.h"
|
||||
@@ -393,10 +394,10 @@ g_winhttp_file_resolve_relative_path (GFile *file,
|
||||
child = g_object_new (G_TYPE_WINHTTP_FILE, NULL);
|
||||
child->vfs = winhttp_file->vfs;
|
||||
child->url = winhttp_file->url;
|
||||
- child->url.lpszScheme = g_memdup (winhttp_file->url.lpszScheme, (winhttp_file->url.dwSchemeLength+1)*2);
|
||||
- child->url.lpszHostName = g_memdup (winhttp_file->url.lpszHostName, (winhttp_file->url.dwHostNameLength+1)*2);
|
||||
- child->url.lpszUserName = g_memdup (winhttp_file->url.lpszUserName, (winhttp_file->url.dwUserNameLength+1)*2);
|
||||
- child->url.lpszPassword = g_memdup (winhttp_file->url.lpszPassword, (winhttp_file->url.dwPasswordLength+1)*2);
|
||||
+ child->url.lpszScheme = g_memdup2 (winhttp_file->url.lpszScheme, (winhttp_file->url.dwSchemeLength+1)*2);
|
||||
+ child->url.lpszHostName = g_memdup2 (winhttp_file->url.lpszHostName, (winhttp_file->url.dwHostNameLength+1)*2);
|
||||
+ child->url.lpszUserName = g_memdup2 (winhttp_file->url.lpszUserName, (winhttp_file->url.dwUserNameLength+1)*2);
|
||||
+ child->url.lpszPassword = g_memdup2 (winhttp_file->url.lpszPassword, (winhttp_file->url.dwPasswordLength+1)*2);
|
||||
child->url.lpszUrlPath = wnew_path;
|
||||
child->url.dwUrlPathLength = wcslen (wnew_path);
|
||||
child->url.lpszExtraInfo = NULL;
|
||||
--
|
||||
2.31.1
|
||||
|
||||
From 661f5edc901219a1a99bb51f171be13063878bd6 Mon Sep 17 00:00:00 2001
|
||||
From: Michael Catanzaro <mcatanzaro@redhat.com>
|
||||
Date: Thu, 20 May 2021 15:58:53 -0500
|
||||
Subject: [PATCH 6/6] gdatainputstream: replace easy use of g_memdup()
|
||||
|
||||
This code is passing a gsize, so might as well switch this to g_memdup2().
|
||||
|
||||
This is the only use of g_memdup() in GLib 2.56 that is not part of GLib
|
||||
2.58. All other uses analyzed in glib!2000.
|
||||
---
|
||||
gio/gdatainputstream.c | 3 ++-
|
||||
1 file changed, 2 insertions(+), 1 deletion(-)
|
||||
|
||||
diff --git a/gio/gdatainputstream.c b/gio/gdatainputstream.c
|
||||
index 9f207b158..ebef7c797 100644
|
||||
--- a/gio/gdatainputstream.c
|
||||
+++ b/gio/gdatainputstream.c
|
||||
@@ -27,6 +27,7 @@
|
||||
#include "gioenumtypes.h"
|
||||
#include "gioerror.h"
|
||||
#include "glibintl.h"
|
||||
+#include "gstrfuncsprivate.h"
|
||||
|
||||
#include <string.h>
|
||||
|
||||
@@ -1082,7 +1083,7 @@ g_data_input_stream_read_async (GDataInputStream *stream,
|
||||
data = g_slice_new0 (GDataInputStreamReadData);
|
||||
if (stop_chars_len == -1)
|
||||
stop_chars_len = strlen (stop_chars);
|
||||
- data->stop_chars = g_memdup (stop_chars, stop_chars_len);
|
||||
+ data->stop_chars = g_memdup2 (stop_chars, stop_chars_len);
|
||||
data->stop_chars_len = stop_chars_len;
|
||||
data->last_saw_cr = FALSE;
|
||||
|
||||
--
|
||||
2.31.1
|
386
SOURCES/gmain-corruption.patch
Normal file
386
SOURCES/gmain-corruption.patch
Normal file
@ -0,0 +1,386 @@
|
||||
From 2bad3cb3bf8f0cc3f45057061f9a538ecf7742b6 Mon Sep 17 00:00:00 2001
|
||||
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
|
||||
Date: Thu, 14 Feb 2019 17:46:33 +0200
|
||||
Subject: [PATCH 1/5] Use atomic reference counting for GSource
|
||||
|
||||
If attached to a context already it would use a mutex instead but at
|
||||
least before that the reference counting is not thread-safe currently.
|
||||
---
|
||||
glib/gmain.c | 50 +++++++++++++++-----------------------------------
|
||||
1 file changed, 15 insertions(+), 35 deletions(-)
|
||||
|
||||
diff --git a/glib/gmain.c b/glib/gmain.c
|
||||
index 26e68823d..5b91c3117 100644
|
||||
--- a/glib/gmain.c
|
||||
+++ b/glib/gmain.c
|
||||
@@ -374,15 +374,6 @@ typedef struct _GSourceIter
|
||||
#define SOURCE_DESTROYED(source) (((source)->flags & G_HOOK_FLAG_ACTIVE) == 0)
|
||||
#define SOURCE_BLOCKED(source) (((source)->flags & G_SOURCE_BLOCKED) != 0)
|
||||
|
||||
-#define SOURCE_UNREF(source, context) \
|
||||
- G_STMT_START { \
|
||||
- if ((source)->ref_count > 1) \
|
||||
- (source)->ref_count--; \
|
||||
- else \
|
||||
- g_source_unref_internal ((source), (context), TRUE); \
|
||||
- } G_STMT_END
|
||||
-
|
||||
-
|
||||
/* Forward declarations */
|
||||
|
||||
static void g_source_unref_internal (GSource *source,
|
||||
@@ -977,10 +968,10 @@ g_source_iter_next (GSourceIter *iter, GSource **source)
|
||||
*/
|
||||
|
||||
if (iter->source && iter->may_modify)
|
||||
- SOURCE_UNREF (iter->source, iter->context);
|
||||
+ g_source_unref_internal (iter->source, iter->context, TRUE);
|
||||
iter->source = next_source;
|
||||
if (iter->source && iter->may_modify)
|
||||
- iter->source->ref_count++;
|
||||
+ g_source_ref (iter->source);
|
||||
|
||||
*source = iter->source;
|
||||
return *source != NULL;
|
||||
@@ -994,7 +985,7 @@ g_source_iter_clear (GSourceIter *iter)
|
||||
{
|
||||
if (iter->source && iter->may_modify)
|
||||
{
|
||||
- SOURCE_UNREF (iter->source, iter->context);
|
||||
+ g_source_unref_internal (iter->source, iter->context, TRUE);
|
||||
iter->source = NULL;
|
||||
}
|
||||
}
|
||||
@@ -1135,7 +1126,7 @@ g_source_attach_unlocked (GSource *source,
|
||||
|
||||
source->context = context;
|
||||
source->source_id = id;
|
||||
- source->ref_count++;
|
||||
+ g_source_ref (source);
|
||||
|
||||
g_hash_table_insert (context->sources, GUINT_TO_POINTER (id), source);
|
||||
|
||||
@@ -1675,7 +1666,7 @@ g_source_set_funcs (GSource *source,
|
||||
{
|
||||
g_return_if_fail (source != NULL);
|
||||
g_return_if_fail (source->context == NULL);
|
||||
- g_return_if_fail (source->ref_count > 0);
|
||||
+ g_return_if_fail (g_atomic_int_get (&source->ref_count) > 0);
|
||||
g_return_if_fail (funcs != NULL);
|
||||
|
||||
source->source_funcs = funcs;
|
||||
@@ -2050,19 +2041,9 @@ g_source_set_name_by_id (guint tag,
|
||||
GSource *
|
||||
g_source_ref (GSource *source)
|
||||
{
|
||||
- GMainContext *context;
|
||||
-
|
||||
g_return_val_if_fail (source != NULL, NULL);
|
||||
|
||||
- context = source->context;
|
||||
-
|
||||
- if (context)
|
||||
- LOCK_CONTEXT (context);
|
||||
-
|
||||
- source->ref_count++;
|
||||
-
|
||||
- if (context)
|
||||
- UNLOCK_CONTEXT (context);
|
||||
+ g_atomic_int_inc (&source->ref_count);
|
||||
|
||||
return source;
|
||||
}
|
||||
@@ -2078,12 +2059,11 @@ g_source_unref_internal (GSource *source,
|
||||
GSourceCallbackFuncs *old_cb_funcs = NULL;
|
||||
|
||||
g_return_if_fail (source != NULL);
|
||||
-
|
||||
+
|
||||
if (!have_lock && context)
|
||||
LOCK_CONTEXT (context);
|
||||
|
||||
- source->ref_count--;
|
||||
- if (source->ref_count == 0)
|
||||
+ if (g_atomic_int_dec_and_test (&source->ref_count))
|
||||
{
|
||||
TRACE (GLIB_SOURCE_BEFORE_FREE (source, context,
|
||||
source->source_funcs->finalize));
|
||||
@@ -2107,20 +2087,20 @@ g_source_unref_internal (GSource *source,
|
||||
{
|
||||
/* Temporarily increase the ref count again so that GSource methods
|
||||
* can be called from finalize(). */
|
||||
- source->ref_count++;
|
||||
+ g_atomic_int_inc (&source->ref_count);
|
||||
if (context)
|
||||
UNLOCK_CONTEXT (context);
|
||||
source->source_funcs->finalize (source);
|
||||
if (context)
|
||||
LOCK_CONTEXT (context);
|
||||
- source->ref_count--;
|
||||
+ g_atomic_int_add (&source->ref_count, -1);
|
||||
}
|
||||
|
||||
if (old_cb_funcs)
|
||||
{
|
||||
/* Temporarily increase the ref count again so that GSource methods
|
||||
* can be called from callback_funcs.unref(). */
|
||||
- source->ref_count++;
|
||||
+ g_atomic_int_inc (&source->ref_count);
|
||||
if (context)
|
||||
UNLOCK_CONTEXT (context);
|
||||
|
||||
@@ -2128,7 +2108,7 @@ g_source_unref_internal (GSource *source,
|
||||
|
||||
if (context)
|
||||
LOCK_CONTEXT (context);
|
||||
- source->ref_count--;
|
||||
+ g_atomic_int_add (&source->ref_count, -1);
|
||||
}
|
||||
|
||||
g_free (source->name);
|
||||
@@ -3201,7 +3181,7 @@ g_main_dispatch (GMainContext *context)
|
||||
}
|
||||
}
|
||||
|
||||
- SOURCE_UNREF (source, context);
|
||||
+ g_source_unref_internal (source, context, TRUE);
|
||||
}
|
||||
|
||||
g_ptr_array_set_size (context->pending_dispatches, 0);
|
||||
@@ -3440,7 +3420,7 @@ g_main_context_prepare (GMainContext *context,
|
||||
for (i = 0; i < context->pending_dispatches->len; i++)
|
||||
{
|
||||
if (context->pending_dispatches->pdata[i])
|
||||
- SOURCE_UNREF ((GSource *)context->pending_dispatches->pdata[i], context);
|
||||
+ g_source_unref_internal ((GSource *)context->pending_dispatches->pdata[i], context, TRUE);
|
||||
}
|
||||
g_ptr_array_set_size (context->pending_dispatches, 0);
|
||||
|
||||
@@ -3788,7 +3768,7 @@ g_main_context_check (GMainContext *context,
|
||||
|
||||
if (source->flags & G_SOURCE_READY)
|
||||
{
|
||||
- source->ref_count++;
|
||||
+ g_source_ref (source);
|
||||
g_ptr_array_add (context->pending_dispatches, source);
|
||||
|
||||
n_ready++;
|
||||
--
|
||||
2.31.1
|
||||
|
||||
From 323d0c7658a9a44efc327840c0667044a4b98f89 Mon Sep 17 00:00:00 2001
|
||||
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
|
||||
Date: Mon, 3 Feb 2020 15:38:28 +0200
|
||||
Subject: [PATCH 2/5] GMainContext - Fix GSource iterator if iteration can
|
||||
modify the list
|
||||
|
||||
We first have to ref the next source and then unref the previous one.
|
||||
This might be the last reference to the previous source, and freeing the
|
||||
previous source might unref and free the next one which would then leave
|
||||
use with a dangling pointer here.
|
||||
|
||||
Fixes https://gitlab.gnome.org/GNOME/glib/issues/2031
|
||||
---
|
||||
glib/gmain.c | 8 ++++++--
|
||||
1 file changed, 6 insertions(+), 2 deletions(-)
|
||||
|
||||
diff --git a/glib/gmain.c b/glib/gmain.c
|
||||
index 5b91c3117..a3ea1d36c 100644
|
||||
--- a/glib/gmain.c
|
||||
+++ b/glib/gmain.c
|
||||
@@ -965,13 +965,17 @@ g_source_iter_next (GSourceIter *iter, GSource **source)
|
||||
* GSourceList to be removed from source_lists (if iter->source is
|
||||
* the only source in its list, and it is destroyed), so we have to
|
||||
* keep it reffed until after we advance iter->current_list, above.
|
||||
+ *
|
||||
+ * Also we first have to ref the next source before unreffing the
|
||||
+ * previous one as unreffing the previous source can potentially
|
||||
+ * free the next one.
|
||||
*/
|
||||
+ if (next_source && iter->may_modify)
|
||||
+ g_source_ref (next_source);
|
||||
|
||||
if (iter->source && iter->may_modify)
|
||||
g_source_unref_internal (iter->source, iter->context, TRUE);
|
||||
iter->source = next_source;
|
||||
- if (iter->source && iter->may_modify)
|
||||
- g_source_ref (iter->source);
|
||||
|
||||
*source = iter->source;
|
||||
return *source != NULL;
|
||||
--
|
||||
2.31.1
|
||||
|
||||
From fc051ec83d8894dd754bf364562ba9be9ff999fc Mon Sep 17 00:00:00 2001
|
||||
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
|
||||
Date: Mon, 3 Feb 2020 15:35:51 +0200
|
||||
Subject: [PATCH 3/5] GMainContext - Fix memory leaks and memory corruption
|
||||
when freeing sources while freeing a context
|
||||
|
||||
Instead of destroying sources directly while freeing the context, and
|
||||
potentially freeing them if this was the last reference to them, collect
|
||||
new references of all sources in a separate list before and at the same
|
||||
time invalidate their context so that they can't access it anymore. Only
|
||||
once all sources have their context invalidated, destroy them while
|
||||
still keeping a reference to them. Once all sources are destroyed we get
|
||||
rid of the additional references and free them if nothing else keeps a
|
||||
reference to them anymore.
|
||||
|
||||
This fixes a regression introduced by 26056558be in 2012.
|
||||
|
||||
The previous code that invalidated the context of each source and then
|
||||
destroyed it before going to the next source without keeping an
|
||||
additional reference caused memory leaks or memory corruption depending
|
||||
on the order of the sources in the sources lists.
|
||||
|
||||
If a source was destroyed it might happen that this was the last
|
||||
reference to this source, and it would then be freed. This would cause
|
||||
the finalize function to be called, which might destroy and unref
|
||||
another source and potentially free it. This other source would then
|
||||
either
|
||||
- go through the normal free logic and change the intern linked list
|
||||
between the sources, while other sources that are unreffed as part of
|
||||
the main context freeing would not. As such the list would be in an
|
||||
inconsistent state and we might dereference freed memory.
|
||||
- go through the normal destroy and free logic but because the context
|
||||
pointer was already invalidated it would simply mark the source as
|
||||
destroyed without actually removing it from the context. This would
|
||||
then cause a memory leak because the reference owned by the context is
|
||||
not freed.
|
||||
|
||||
Fixes https://github.com/gtk-rs/glib/issues/583 while still keeping
|
||||
https://bugzilla.gnome.org/show_bug.cgi?id=661767 fixes.
|
||||
---
|
||||
glib/gmain.c | 35 ++++++++++++++++++++++++++++++++++-
|
||||
1 file changed, 34 insertions(+), 1 deletion(-)
|
||||
|
||||
diff --git a/glib/gmain.c b/glib/gmain.c
|
||||
index a3ea1d36c..1c249ad02 100644
|
||||
--- a/glib/gmain.c
|
||||
+++ b/glib/gmain.c
|
||||
@@ -534,6 +534,7 @@ g_main_context_unref (GMainContext *context)
|
||||
GSourceIter iter;
|
||||
GSource *source;
|
||||
GList *sl_iter;
|
||||
+ GSList *s_iter, *remaining_sources = NULL;
|
||||
GSourceList *list;
|
||||
guint i;
|
||||
|
||||
@@ -553,10 +554,30 @@ g_main_context_unref (GMainContext *context)
|
||||
|
||||
/* g_source_iter_next() assumes the context is locked. */
|
||||
LOCK_CONTEXT (context);
|
||||
- g_source_iter_init (&iter, context, TRUE);
|
||||
+
|
||||
+ /* First collect all remaining sources from the sources lists and store a
|
||||
+ * new reference in a separate list. Also set the context of the sources
|
||||
+ * to NULL so that they can't access a partially destroyed context anymore.
|
||||
+ *
|
||||
+ * We have to do this first so that we have a strong reference to all
|
||||
+ * sources and destroying them below does not also free them, and so that
|
||||
+ * none of the sources can access the context from their finalize/dispose
|
||||
+ * functions. */
|
||||
+ g_source_iter_init (&iter, context, FALSE);
|
||||
while (g_source_iter_next (&iter, &source))
|
||||
{
|
||||
source->context = NULL;
|
||||
+ remaining_sources = g_slist_prepend (remaining_sources, g_source_ref (source));
|
||||
+ }
|
||||
+ g_source_iter_clear (&iter);
|
||||
+
|
||||
+ /* Next destroy all sources. As we still hold a reference to all of them,
|
||||
+ * this won't cause any of them to be freed yet and especially prevents any
|
||||
+ * source that unrefs another source from its finalize function to be freed.
|
||||
+ */
|
||||
+ for (s_iter = remaining_sources; s_iter; s_iter = s_iter->next)
|
||||
+ {
|
||||
+ source = s_iter->data;
|
||||
g_source_destroy_internal (source, context, TRUE);
|
||||
}
|
||||
UNLOCK_CONTEXT (context);
|
||||
@@ -581,6 +602,18 @@ g_main_context_unref (GMainContext *context)
|
||||
g_cond_clear (&context->cond);
|
||||
|
||||
g_free (context);
|
||||
+
|
||||
+ /* And now finally get rid of our references to the sources. This will cause
|
||||
+ * them to be freed unless something else still has a reference to them. Due
|
||||
+ * to setting the context pointers in the sources to NULL above, this won't
|
||||
+ * ever access the context or the internal linked list inside the GSource.
|
||||
+ * We already removed the sources completely from the context above. */
|
||||
+ for (s_iter = remaining_sources; s_iter; s_iter = s_iter->next)
|
||||
+ {
|
||||
+ source = s_iter->data;
|
||||
+ g_source_unref_internal (source, NULL, FALSE);
|
||||
+ }
|
||||
+ g_slist_free (remaining_sources);
|
||||
}
|
||||
|
||||
/* Helper function used by mainloop/overflow test.
|
||||
--
|
||||
2.31.1
|
||||
|
||||
From 1d16e92028f235ed9cd786070832d5bd71017661 Mon Sep 17 00:00:00 2001
|
||||
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
|
||||
Date: Tue, 11 Feb 2020 09:34:38 +0200
|
||||
Subject: [PATCH 4/5] GMainContext - Move mutex unlocking in destructor right
|
||||
before freeing the mutex
|
||||
|
||||
This does not have any behaviour changes but is cleaner. The mutex is
|
||||
only unlocked now after all operations on the context are done and right
|
||||
before freeing the mutex and the context itself.
|
||||
---
|
||||
glib/gmain.c | 2 +-
|
||||
1 file changed, 1 insertion(+), 1 deletion(-)
|
||||
|
||||
diff --git a/glib/gmain.c b/glib/gmain.c
|
||||
index 1c249ad02..44e6ed0c3 100644
|
||||
--- a/glib/gmain.c
|
||||
+++ b/glib/gmain.c
|
||||
@@ -580,7 +580,6 @@ g_main_context_unref (GMainContext *context)
|
||||
source = s_iter->data;
|
||||
g_source_destroy_internal (source, context, TRUE);
|
||||
}
|
||||
- UNLOCK_CONTEXT (context);
|
||||
|
||||
for (sl_iter = context->source_lists; sl_iter; sl_iter = sl_iter->next)
|
||||
{
|
||||
@@ -591,6 +590,7 @@ g_main_context_unref (GMainContext *context)
|
||||
|
||||
g_hash_table_destroy (context->sources);
|
||||
|
||||
+ UNLOCK_CONTEXT (context);
|
||||
g_mutex_clear (&context->mutex);
|
||||
|
||||
g_ptr_array_free (context->pending_dispatches, TRUE);
|
||||
--
|
||||
2.31.1
|
||||
|
||||
From 02ad7294ad5895178df73a6cd8546c6e67097493 Mon Sep 17 00:00:00 2001
|
||||
From: Benjamin Berg <bberg@redhat.com>
|
||||
Date: Tue, 13 Oct 2020 15:09:43 +0200
|
||||
Subject: [PATCH 5/5] gmain: Fix possible locking issue in source unref
|
||||
|
||||
When unref'ing child sources, the lock is already held. But instead of
|
||||
passing TRUE to g_source_unref_internal it currently passes whether the
|
||||
lock was already held outside of the current invocation. Just pass TRUE
|
||||
to fix this possible issue.
|
||||
---
|
||||
glib/gmain.c | 2 +-
|
||||
1 file changed, 1 insertion(+), 1 deletion(-)
|
||||
|
||||
diff --git a/glib/gmain.c b/glib/gmain.c
|
||||
index 44e6ed0c3..95992253d 100644
|
||||
--- a/glib/gmain.c
|
||||
+++ b/glib/gmain.c
|
||||
@@ -2164,7 +2164,7 @@ g_source_unref_internal (GSource *source,
|
||||
g_slist_remove (source->priv->child_sources, child_source);
|
||||
child_source->priv->parent_source = NULL;
|
||||
|
||||
- g_source_unref_internal (child_source, context, have_lock);
|
||||
+ g_source_unref_internal (child_source, context, TRUE);
|
||||
}
|
||||
|
||||
g_slice_free (GSourcePrivate, source->priv);
|
||||
--
|
||||
2.31.1
|
@ -5,7 +5,7 @@
|
||||
|
||||
Name: glib2
|
||||
Version: 2.56.4
|
||||
Release: 9%{?dist}
|
||||
Release: 10%{?dist}
|
||||
Summary: A library of handy utility functions
|
||||
|
||||
License: LGPLv2+
|
||||
@ -70,6 +70,16 @@ Patch60: keyfile-backend.patch
|
||||
# https://gitlab.gnome.org/GNOME/glib/-/issues/1658
|
||||
Patch61: CVE-2019-13012.patch
|
||||
|
||||
# https://gitlab.gnome.org/GNOME/glib/-/merge_requests/1927
|
||||
# https://gitlab.gnome.org/GNOME/glib/-/merge_requests/2000
|
||||
Patch70: CVE-2021-27219.patch
|
||||
|
||||
# https://bugzilla.redhat.com/show_bug.cgi?id=1948988
|
||||
# https://gitlab.gnome.org/GNOME/glib/-/merge_requests/873
|
||||
# https://gitlab.gnome.org/GNOME/glib/-/merge_requests/1353
|
||||
# https://gitlab.gnome.org/GNOME/glib/-/merge_requests/1691
|
||||
Patch80: gmain-corruption.patch
|
||||
|
||||
%description
|
||||
GLib is the low-level core library that forms the basis for projects
|
||||
such as GTK+ and GNOME. It provides data structure handling for C,
|
||||
@ -267,6 +277,12 @@ glib-compile-schemas %{_datadir}/glib-2.0/schemas &> /dev/null || :
|
||||
%{_datadir}/installed-tests
|
||||
|
||||
%changelog
|
||||
* Thu May 20 2021 Michael Catanzaro <mcatanzaro@redhat.com> - 2.56.4-10
|
||||
- Fix various problems in GMainContext
|
||||
Resolves: #1953553
|
||||
- Fix CVE-2021-27219
|
||||
Resolves: #1960600
|
||||
|
||||
* Tue Nov 10 2020 Michael Catanzaro <mcatanzaro@redhat.com> - 2.56.4-9
|
||||
- Update GHmac patch to implement g_hmac_copy()
|
||||
Resolves: #1786538
|
||||
|
Loading…
Reference in New Issue
Block a user