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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-07-23 23:41:27 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-10-17 21:34:53 +0200 |
| commit | e241831a6cf6014159d08c409dad1088bb6655bf (patch) | |
| tree | be4c3458cf5bb64c5f0ce59ebb16621d0697e4e3 /libavutil/parseutils.h | |
| parent | eeefeb5681af7da685c945fb37bb901df9dedc72 (diff) | |
| download | ffmpeg-e241831a6cf6014159d08c409dad1088bb6655bf.tar.gz | |
avcodec/alac: Check decorr_shift to avoid invalid shift
Later the decorrelate_stereo call is guarded by channels == 2
and non-zero decorr_left_weight. Make sure decorr_shift is in
the expected shift range for that case.
Fixes: shift exponent 128 is too large for 32-bit type 'int'
Fixes: 23860/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALAC_fuzzer-5751138914402304
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Alexander Strasser <eclipse7@gmx.net>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 4333718b357a9ad195031e5d0ea080d37677b795)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavutil/parseutils.h')
0 files changed, 0 insertions, 0 deletions