eessppeelllloo/ffmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2025-12-11 17:30:00 +01:00
Code Issues Packages Projects Releases Wiki Activity

avcodec/osq: avoid undefined negation

Browse Source 
Fixes: negation of -2147483648 cannot be represented in type 'int32_t' (aka 'int'); cast to an unsigned type to negate this value to itself
Fixes: 390646659/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_OSQ_fuzzer-5040277374435328

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit c6a889f3e0)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer
2025-02-04 03:58:45 +01:00
parent 4007277b68
commit 1bf1f52690
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
libavcodec/osq.c
View File

@@ -189,7 +189,7 @@ static uint32_t get_urice(GetBitContext *gb, int k)
static int32_t get_srice(GetBitContext *gb, int x)
{
int32_t y = get_urice(gb, x);
uint32_t y = get_urice(gb, x);
return get_bits1(gb) ? -y : y;
}