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pixman
pixman-CVE-2022-44638.patch
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File pixman-CVE-2022-44638.patch of Package pixman
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 */ } -- 2.38.0
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