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| author | Michael Niedermayer <michael@niedermayer.cc> | 2023-01-11 18:59:16 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2023-03-27 13:37:20 +0200 |
| commit | 8ed2948348673407c5e30662687ff445fc621c52 (patch) | |
| tree | 894f857cb0e2487cc941ce4140dd8495b442a3f2 /libavutil/x86/cpu.c | |
| parent | 9fc6586a007cdcd0689e42a88854abe727fcc9f4 (diff) | |
| download | ffmpeg-8ed2948348673407c5e30662687ff445fc621c52.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 'libavutil/x86/cpu.c')
0 files changed, 0 insertions, 0 deletions