On Sat, Jun 21, 2025 at 11:15:20PM +0200, Michael Niedermayer wrote: > Fixes: division by 0 > Fixes: > 418396712/clusterfuzz-testcase-minimized-ffmpeg_dem_IFF_fuzzer-6104388018176000 > Fixes: > 418478219/clusterfuzz-testcase-minimized-ffmpeg_dem_IFF_fuzzer-4569544410857472 > > Found-by: continuous fuzzing process > https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > --- > libavformat/iff.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/libavformat/iff.c b/libavformat/iff.c > index 9402be48c98..4ff10beb38a 100644 > --- a/libavformat/iff.c > +++ b/libavformat/iff.c > @@ -284,7 +284,7 @@ static int parse_dsd_prop(AVFormatContext *s, AVStream > *st, uint64_t eof) > return AVERROR_INVALIDDATA; > st->codecpar->ch_layout.order = AV_CHANNEL_ORDER_UNSPEC; > st->codecpar->ch_layout.nb_channels = avio_rb16(pb); > - if (size < 2 + st->codecpar->ch_layout.nb_channels * 4) > + if (size < 2 + st->codecpar->ch_layout.nb_channels * 4 || > !st->codecpar->ch_layout.nb_channels) > return AVERROR_INVALIDDATA; > if (st->codecpar->ch_layout.nb_channels > > FF_ARRAY_ELEMS(dsd_layout)) { > avpriv_request_sample(s, "channel layout");
please apply -- Peter (A907 E02F A6E5 0CD2 34CD 20D2 6760 79C5 AC40 DD6B)
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