Fixes: Assertion b >=0 failed at libavutil/mathematics.c:62 Fixes: 67811/clusterfuzz-testcase-minimized-ffmpeg_dem_MXF_fuzzer-5108429687422976
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 | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c index 04de4c1d5e3..233d614f783 100644 --- a/libavformat/mxfdec.c +++ b/libavformat/mxfdec.c @@ -1264,6 +1264,9 @@ static int mxf_read_index_table_segment(void *arg, AVIOContext *pb, int tag, int case 0x3F0B: segment->index_edit_rate.num = avio_rb32(pb); segment->index_edit_rate.den = avio_rb32(pb); + if (segment->index_edit_rate.num <= 0 || + segment->index_edit_rate.den <= 0) + return AVERROR_INVALIDDATA; av_log(NULL, AV_LOG_TRACE, "IndexEditRate %d/%d\n", segment->index_edit_rate.num, segment->index_edit_rate.den); break; -- 2.17.1 _______________________________________________ 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".
