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avformat/mov: Check size of STSC allocation

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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit a6fdd75fe6)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Fredrik Hubinette 2017-11-15 17:24:30 -08:00 committed by Michael Niedermayer
parent 066c657376
commit 74104d2dc0
1 changed files with 2 additions and 0 deletions
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libavformat/mov.c
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@ -2411,6 +2411,8 @@ static int mov_read_stsc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
avio_rb24(pb); /* flags */
entries = avio_rb32(pb);
if ((uint64_t)entries * 12 + 4 > atom.size)
return AVERROR_INVALIDDATA;
av_log(c->fc, AV_LOG_TRACE, "track[%u].stsc.entries = %u\n", c->fc->nb_streams - 1, entries);