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| author | Michael Niedermayer <michael@niedermayer.cc> | 2023-01-11 18:59:16 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2023-06-04 20:18:16 +0200 |
| commit | 331d1d56776db3e70afcc49cb4555ea4941bd499 (patch) | |
| tree | f6283e9fcac2f75b71de2dd88a605f8d0a8d1754 /libavcodec/msmpeg4dec.c | |
| parent | 6047f056afd366cc7c12312cce01f58b60fed6df (diff) | |
| download | ffmpeg-331d1d56776db3e70afcc49cb4555ea4941bd499.tar.gz | |
avcodec/utils: allocate a line more for VC1 and WMV3
Fixes: out of array read on 32bit
Fixes: 54857/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC1_fuzzer-5840588224462848
The chroma MC code reads over the currently allocated frame.
Alternative fixes would be allocating a few bytes more at the end instead of a whole
line extra or to adjust the threshold where the edge emu code is activated
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 01636a63d452c592ece35af6f72bb7affcad58f2)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/msmpeg4dec.c')
0 files changed, 0 insertions, 0 deletions