diff options
Diffstat (limited to 'meta/recipes-graphics/xorg-lib/pixman/CVE-2022-44638.patch')
| -rw-r--r-- | meta/recipes-graphics/xorg-lib/pixman/CVE-2022-44638.patch | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/meta/recipes-graphics/xorg-lib/pixman/CVE-2022-44638.patch b/meta/recipes-graphics/xorg-lib/pixman/CVE-2022-44638.patch new file mode 100644 index 0000000000..d54ae16b33 --- /dev/null +++ b/meta/recipes-graphics/xorg-lib/pixman/CVE-2022-44638.patch @@ -0,0 +1,34 @@ +CVE: CVE-2022-44638 +Upstream-Status: Backport +Signed-off-by: Ross Burton <ross.burton@arm.com> +Signed-off-by:Bhabu Bindu <bhabu.bindu@kpit.com> + +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 +--- + 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 + |