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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-10-27 17:21:19 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-09-11 21:23:48 +0200 |
| commit | b42f802a3855be7124c6d644e6479214bfca9c8b (patch) | |
| tree | da825bad9804e6ce350e12cd55622f659fcac828 | |
| parent | ec94d7545e9a8635721a1ee7ce33f6b156b4347e (diff) | |
| download | ffmpeg-b42f802a3855be7124c6d644e6479214bfca9c8b.tar.gz | |
avcodec/utils: Check sample rate before use for AV_CODEC_ID_BINKAUDIO_DCT in get_audio_frame_duration()
Fixes: shift exponent 95 is too large for 32-bit type 'int'
Fixes: 26590/clusterfuzz-testcase-minimized-ffmpeg_dem_SMACKER_fuzzer-5120609937522688
Reviewed-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit ec7e0d42884b40ce93b6b5e94de5f7849310f8a0)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/utils.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/libavcodec/utils.c b/libavcodec/utils.c index 6e72329f04..97c61cf1dd 100644 --- a/libavcodec/utils.c +++ b/libavcodec/utils.c @@ -1749,8 +1749,11 @@ static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba, if (ch > 0) { /* calc from sample rate and channels */ - if (id == AV_CODEC_ID_BINKAUDIO_DCT) + if (id == AV_CODEC_ID_BINKAUDIO_DCT) { + if (sr / 22050 > 22) + return 0; return (480 << (sr / 22050)) / ch; + } } if (id == AV_CODEC_ID_MP3) |