fix CVE-2022-44638

backport-CVE-2022-44638.patch

@@ -0,0 +1,32 @@
+From a1f88e842e0216a5b4df1ab023caebe33c101395 Mon Sep 17 00:00:00 2001
+From: Matt Turner <mattst88@gmail.com>
+Date: Wed, 2 Nov 2022 12:07:32 -0400
+Subject: [PATCH] Avoid integer overflow leading to out-of-bounds write
+
+Thanks to Maddie Stone and Google's Project Zero for discovering this
+issue, providing a proof-of-concept, and a great analysis.
+
+Closes: https://gitlab.freedesktop.org/pixman/pixman/-/issues/63
+
+Conflict:NA
+Reference:https://gitlab.freedesktop.org/pixman/pixman/-/commit/a1f88e842e0216a5b4df1ab023caebe33c101395
+---
+ pixman/pixman-trap.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/pixman/pixman-trap.c b/pixman/pixman-trap.c
+index 91766fd..7560405 100644
+--- a/pixman/pixman-trap.c
++++ b/pixman/pixman-trap.c
+@@ -74,7 +74,7 @@ pixman_sample_floor_y (pixman_fixed_t y,
+ 
+     if (f < Y_FRAC_FIRST (n))
+     {
+-	if (pixman_fixed_to_int (i) == 0x8000)
++	if (pixman_fixed_to_int (i) == 0xffff8000)
+ 	{
+ 	    f = 0; /* saturate */
+ 	}
+-- 
+GitLab
+

pixman.spec

@@ -1,11 +1,13 @@
 Name:              pixman
 Version:	   0.40.0
-Release:           2
+Release:           3
 Summary:           Pixman is a pixel manipulation library for X and Cairo
 License:           MIT
 URL:               https://gitlab.freedesktop.org/pixman/pixman
 Source0:           https://gitlab.freedesktop.org/pixman/pixman/-/archive/pixman-%{version}/pixman-pixman-%{version}.tar.bz2
 
+Patch6000:	   backport-CVE-2022-44638.patch
+
 BuildRequires:     gcc meson
 
 %description
@@ -53,6 +55,9 @@ sed -i 's/120/600/' test/meson.build
 %{_libdir}/pkgconfig/*
 
 %changelog
+* Tue Nov 08 2022 wangkerong <wangkerong@h-partners.com> - 0.40.0-3
+- fix CVE-2022-44638
+
 * Wed Oct 26 2022 zhouwenpei <zhouwenpei1@h-partners.com> - 0.40.0-2
 - Rebuild for next release