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avformat/cafdec: clip sample rate 

Fixes: 1.21126e+111 is outside the range of representable values of type 'int'
Fixes: 27398/clusterfuzz-testcase-minimized-ffmpeg_dem_CAF_fuzzer-5412960339755008

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 684aec6a68)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2020-11-18 00:48:26 +01:00
parent dcb07bee75
commit 2b3c1a3000
1 changed files with 1 additions and 1 deletions
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2
libavformat/cafdec.c
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@ -70,7 +70,7 @@ static int read_desc_chunk(AVFormatContext *s)
/* parse format description */
st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
st->codecpar->sample_rate = av_int2double(avio_rb64(pb));
st->codecpar->sample_rate = av_clipd(av_int2double(avio_rb64(pb)), 0, INT_MAX);
st->codecpar->codec_tag = avio_rl32(pb);
flags = avio_rb32(pb);
caf->bytes_per_packet = avio_rb32(pb);