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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-10-27 17:21:19 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-10-29 20:42:48 +0100 |
| commit | ec7e0d42884b40ce93b6b5e94de5f7849310f8a0 (patch) | |
| tree | f8dc687a4b99d2d6f37b6d0606df4c84e2af223d /libavcodec | |
| parent | fbb44bc51a647862eb05ae3f9d7d49a0be9bed57 (diff) | |
| download | ffmpeg-ec7e0d42884b40ce93b6b5e94de5f7849310f8a0.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>
Diffstat (limited to 'libavcodec')
| -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 fb40962c47..110496cc44 100644 --- a/libavcodec/utils.c +++ b/libavcodec/utils.c @@ -1633,8 +1633,11 @@ 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) |