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[AutoPR- Security] Patch gdk-pixbuf2 for CVE-2026-81893 [MEDIUM] #18729

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[AutoPR- Security] Patch gdk-pixbuf2 for CVE-2026-81893 [MEDIUM] #18729

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36 changes: 36 additions & 0 deletions SPECS/gdk-pixbuf2/CVE-2026-81893.patch
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Original file line number Diff line number Diff line change
@@ -0,0 +1,36 @@
From adcf6af8bdfe57da8955784eb2ef7e1a66201fe3 Mon Sep 17 00:00:00 2001
From: Benjamin Otte <otte@redhat.com>
Date: Wed, 5 Aug 2026 18:19:01 +0200
Subject: [PATCH] jpeg: When freeing memory, unset the size

Fixes potential invalid write if a specifically crafted JPEG file
would use markers to:

1. cause memory to be allocated
2. cause it to be freed due to an error
3. cause memory to be allocated again

I did not attempt to craft such a file.

Signed-off-by: Azure Linux Security Servicing Account <azurelinux-security@microsoft.com>
Upstream-reference: https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/commit/efe658674bd103d1c9bf50809d5767a3f6dd5a01.patch
---
gdk-pixbuf/io-jpeg.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/gdk-pixbuf/io-jpeg.c b/gdk-pixbuf/io-jpeg.c
index 60ad0d0..767546e 100644
--- a/gdk-pixbuf/io-jpeg.c
+++ b/gdk-pixbuf/io-jpeg.c
@@ -386,6 +386,8 @@ out:
if (!ret) {
g_free (context->icc_profile);
context->icc_profile = NULL;
+ context->icc_profile_size = 0;
+ context->icc_profile_size_allocated = 0;
}
return ret;
}
--
2.45.4

6 changes: 5 additions & 1 deletion SPECS/gdk-pixbuf2/gdk-pixbuf2.spec
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
Summary: An image loading library
Name: gdk-pixbuf2
Version: 2.42.10
Release: 5%{?dist}
Release: 6%{?dist}
License: LGPLv2+
Vendor: Microsoft Corporation
Distribution: Azure Linux
Expand All @@ -12,6 +12,7 @@ Patch0: CVE-2022-48622.patch
Patch1: CVE-2025-6199.patch
Patch2: CVE-2025-7345.patch
Patch3: CVE-2026-5201.patch
Patch4: CVE-2026-81893.patch
BuildRequires: %{_bindir}/rst2man
BuildRequires: gettext
BuildRequires: libjpeg-devel
Expand Down Expand Up @@ -118,6 +119,9 @@ gdk-pixbuf-query-loaders-%{__isa_bits} --update-cache
%{_datadir}/installed-tests

%changelog
* Mon Sep 07 2026 Azure Linux Security Servicing Account <azurelinux-security@microsoft.com> - 2.42.10-6
- Patch for CVE-2026-81893

* Thu Apr 02 2026 Azure Linux Security Servicing Account <azurelinux-security@microsoft.com> - 2.42.10-5
- Patch for CVE-2026-5201

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