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 @@ | |||
1 | CVE: CVE-2022-44638 | ||
2 | Upstream-Status: Backport | ||
3 | Signed-off-by: Ross Burton <ross.burton@arm.com> | ||
4 | Signed-off-by:Bhabu Bindu <bhabu.bindu@kpit.com> | ||
5 | |||
6 | From a1f88e842e0216a5b4df1ab023caebe33c101395 Mon Sep 17 00:00:00 2001 | ||
7 | From: Matt Turner <mattst88@gmail.com> | ||
8 | Date: Wed, 2 Nov 2022 12:07:32 -0400 | ||
9 | Subject: [PATCH] Avoid integer overflow leading to out-of-bounds write | ||
10 | |||
11 | Thanks to Maddie Stone and Google's Project Zero for discovering this | ||
12 | issue, providing a proof-of-concept, and a great analysis. | ||
13 | |||
14 | Closes: https://gitlab.freedesktop.org/pixman/pixman/-/issues/63 | ||
15 | --- | ||
16 | pixman/pixman-trap.c | 2 +- | ||
17 | 1 file changed, 1 insertion(+), 1 deletion(-) | ||
18 | |||
19 | diff --git a/pixman/pixman-trap.c b/pixman/pixman-trap.c | ||
20 | index 91766fd..7560405 100644 | ||
21 | --- a/pixman/pixman-trap.c | ||
22 | +++ b/pixman/pixman-trap.c | ||
23 | @@ -74,7 +74,7 @@ pixman_sample_floor_y (pixman_fixed_t y, | ||
24 | |||
25 | if (f < Y_FRAC_FIRST (n)) | ||
26 | { | ||
27 | - if (pixman_fixed_to_int (i) == 0x8000) | ||
28 | + if (pixman_fixed_to_int (i) == 0xffff8000) | ||
29 | { | ||
30 | f = 0; /* saturate */ | ||
31 | } | ||
32 | -- | ||
33 | GitLab | ||
34 | |||