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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-10-27 17:21:19 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-02-02 14:18:21 +0100 |
| commit | 4b080eaf2b437a86c3cffa37fa1a258205f9e50b (patch) | |
| tree | d5fbae8daea901ec2d59658f4aec959cd90d64ae | |
| parent | 7f235532346ffb66c4ed96667c3d0499eb266cf6 (diff) | |
| download | ffmpeg-4b080eaf2b437a86c3cffa37fa1a258205f9e50b.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 9ba61dca71..2e99e2fce7 100644 --- a/libavcodec/utils.c +++ b/libavcodec/utils.c @@ -1613,8 +1613,11 @@ 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) |