mirror of https://git.ffmpeg.org/ffmpeg.git
avformat/matroskadec: Check timescale
Fixes: 3.82046e+18 is outside the range of representable values of type 'unsigned int'
Fixes: 62276/clusterfuzz-testcase-minimized-ffmpeg_dem_WEBM_DASH_MANIFEST_fuzzer-6381436594421760
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 e849eb2343
)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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@ -2687,6 +2687,10 @@ static int matroska_parse_tracks(AVFormatContext *s)
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if (track->time_scale < 0.01)
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track->time_scale = 1.0;
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if (matroska->time_scale * track->time_scale > UINT_MAX)
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return AVERROR_INVALIDDATA;
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avpriv_set_pts_info(st, 64, matroska->time_scale * track->time_scale,
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1000 * 1000 * 1000); /* 64 bit pts in ns */
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