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mov: log and return early on non-positive stsd entry counts

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Based on an FFmpeg patch by Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Sean McGovern 2017-07-28 16:17:33 -04:00
parent b90fdb2c71
commit d7bdab1ad7
1 changed files with 5 additions and 0 deletions
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5
libavformat/mov.c
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@ -1875,6 +1875,11 @@ static int mov_read_stsd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
avio_rb24(pb); /* flags */
entries = avio_rb32(pb);
if (entries <= 0) {
av_log(c->fc, AV_LOG_ERROR, "invalid STSD entries %d\n", entries);
return AVERROR_INVALIDDATA;
}
if (sc->extradata) {
av_log(c->fc, AV_LOG_ERROR,
"Duplicate stsd found in this track.\n");