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avformat/avidec: Detect index with too short entries 

Fixes Ticket5498

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2016-05-18 23:27:54 +02:00
parent 7155bd1c94
commit d08f2c172f
1 changed files with 2 additions and 0 deletions
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2
libavformat/avidec.c
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@ -1699,6 +1699,8 @@ static int guess_ni_flag(AVFormatContext *s)
size = avio_rl32(s->pb);
if (get_stream_idx(tag) == i && pos + size > st->index_entries[1].pos)
last_start = INT64_MAX;
if (get_stream_idx(tag) == i && size == st->index_entries[0].size + 8)
last_start = INT64_MAX;
}
if (st->index_entries[0].pos > last_start)