fre 2024-09-13 klockan 01:33 +0200 skrev Michael Niedermayer: > Fixes: signed integer overflow: 9223372036854775807 - - > 1927491430256034080 cannot be represented in type 'long' > Fixes: 70607/clusterfuzz-testcase-minimized-ffmpeg_dem_MXF_fuzzer- > 5282235077951488 > > 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 | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c > index 8eae9f87afa..41281c5196d 100644 > --- a/libavformat/mxfdec.c > +++ b/libavformat/mxfdec.c > @@ -1924,6 +1924,11 @@ static int > mxf_edit_unit_absolute_offset(MXFContext *mxf, MXFIndexTable *index_t > return mxf_absolute_bodysid_offset(mxf, index_table- > >body_sid, offset_temp, offset_out, partition_out); > } else { > /* EditUnitByteCount == 0 for VBR indexes, which is fine > since they use explicit StreamOffsets */ > + if (s->edit_unit_byte_count && s->index_duration > > INT64_MAX / s->edit_unit_byte_count || > + s->edit_unit_byte_count * s->index_duration > > INT64_MAX - offset_temp > + ) > + return AVERROR_INVALIDDATA;
Looks OK /Tomas _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
