On Sun, Sep 12, 2021 at 02:58:52PM +0200, Tomas Härdin wrote: > sön 2021-09-05 klockan 21:24 +0200 skrev Michael Niedermayer: > > Fixes: Out of array access > > Fixes: 37030/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer- > > 5387719147651072 > > > > Found-by: continuous fuzzing process > > https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > > Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > > --- > > libavformat/mxfdec.c | 4 ++++ > > 1 file changed, 4 insertions(+) > > > > diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c > > index 55f2e5c767..ebe411b04d 100644 > > --- a/libavformat/mxfdec.c > > +++ b/libavformat/mxfdec.c > > @@ -552,6 +552,10 @@ static int mxf_get_d10_aes3_packet(AVIOContext > > *pb, AVStream *st, AVPacket *pkt, > > data_ptr = pkt->data; > > end_ptr = pkt->data + length; > > buf_ptr = pkt->data + 4; /* skip SMPTE 331M header */ > > + > > + if (st->codecpar->channels > 8) > > + return AVERROR_INVALIDDATA; > > Looks fine. Double-checked S331m, AES is limited to 8 channels
will apply thx [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Those who are too smart to engage in politics are punished by being governed by those who are dumber. -- Plato
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