virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-02-04 06:08:26 +02:00
Code Issues Releases Activity

avcodec/sonic: Use unsigned for predictor_k to avoid undefined behavior

Browse Source 
Fixes: signed integer overflow: -1094995529 * 24 cannot be represented in type 'int'
Fixes: 44436/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SONIC_fuzzer-4874459459223552

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 28008bf95ed9b2ab5945ae6658358ad7c7f1df35)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2022-02-08 00:43:56 +01:00
parent cc53ce7e5b
commit cd310f0502
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
libavcodec/sonic.c
View File

@ -1004,7 +1004,7 @@ static int sonic_decode_frame(AVCodecContext *avctx,
// dequantize
for (i = 0; i < s->num_taps; i++)
s->predictor_k[i] *= s->tap_quant[i];
s->predictor_k[i] *= (unsigned) s->tap_quant[i];
if (s->lossless)
quant = 1;