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movdec: Avoid av_malloc(0) in stss

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Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
This commit is contained in:
Alex Converse 2012-02-03 10:43:21 -08:00
parent 58fc740059
commit 29a20ac4a1
1 changed files with 2 additions and 0 deletions
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2
libavformat/mov.c
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@ -1529,6 +1529,8 @@ static int mov_read_stss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
av_dlog(c->fc, "keyframe_count = %d\n", entries);
if (!entries)
return 0;
if (entries >= UINT_MAX / sizeof(int))
return AVERROR_INVALIDDATA;
sc->keyframes = av_malloc(entries * sizeof(int));