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avformat/mov: Do not use reference stream in mov_read_sidx() if there is no reference stream 

Fixes: NULL pointer dereference
Fixes: clusterfuzz-testcase-minimized-audio_decoder_fuzzer-5634316373721088

Reported-by: Chris Cunningham <chcunningham@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2019-02-12 23:28:35 +01:00
parent f1f66df6a2
commit b0d8b7cb8e
1 changed files with 1 additions and 1 deletions
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2
libavformat/mov.c
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@ -5045,7 +5045,7 @@ static int mov_read_sidx(MOVContext *c, AVIOContext *pb, MOVAtom atom)
}
}
}
for (i = 0; i < c->fc->nb_streams; i++) {
if (ref_st) for (i = 0; i < c->fc->nb_streams; i++) {
st = c->fc->streams[i];
sc = st->priv_data;
if (!sc->has_sidx) {