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avformat/mpegts: check sl.timestamp_len 

Fixes: msan_uninit-mem_7ff4404547ba_4883_dmbts.ts
Fixes assertion failure
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-12-27 11:45:55 +01:00
parent f55bc96a54
commit e630ca5111
1 changed files with 5 additions and 0 deletions
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5
libavformat/mpegts.c
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@ -1256,6 +1256,11 @@ static int parse_MP4SLDescrTag(MP4DescrParseContext *d, int64_t off, int len)
descr->sl.timestamp_res = avio_rb32(&d->pb);
avio_rb32(&d->pb);
descr->sl.timestamp_len = avio_r8(&d->pb);
if (descr->sl.timestamp_len > 64) {
avpriv_request_sample(NULL, "timestamp_len > 64");
descr->sl.timestamp_len = 64;
return AVERROR_PATCHWELCOME;
}
descr->sl.ocr_len = avio_r8(&d->pb);
descr->sl.au_len = avio_r8(&d->pb);
descr->sl.inst_bitrate_len = avio_r8(&d->pb);