On Wed, Dec 15, 2021 at 06:37:13PM +0100, Michael Niedermayer wrote: > Fixes: division by zero > Fixes: > 42198/clusterfuzz-testcase-minimized-ffmpeg_dem_MV_fuzzer-5054366405492736.fuzz > Fixes: > 42222/clusterfuzz-testcase-minimized-ffmpeg_dem_MV_fuzzer-4561249331970048 > > Found-by: continuous fuzzing process > https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > --- > libavformat/mvdec.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/libavformat/mvdec.c b/libavformat/mvdec.c > index 8b54a9ab045..5d184f20a49 100644 > --- a/libavformat/mvdec.c > +++ b/libavformat/mvdec.c > @@ -381,7 +381,7 @@ static int mv_read_header(AVFormatContext *avctx) > avio_skip(pb, 8); > av_add_index_entry(ast, pos, timestamp, asize, 0, > AVINDEX_KEYFRAME); > av_add_index_entry(vst, pos + asize, i, vsize, 0, > AVINDEX_KEYFRAME); > - timestamp += asize / (ast->codecpar->channels * > bytes_per_sample); > + timestamp += asize / (ast->codecpar->channels * > (uint64_t)bytes_per_sample); > } > } else if (!version && avio_rb16(pb) == 3) { > avio_skip(pb, 4); > -- > 2.17.1
please apply. -- Peter (A907 E02F A6E5 0CD2 34CD 20D2 6760 79C5 AC40 DD6B)
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