ffmpeg | branch: release/4.4 | Michael Niedermayer <mich...@niedermayer.cc> | Thu Apr 4 00:38:20 2024 +0200| [a0c6c0379b4c3a322e9686e4d980d1a6f52d8efe] | committer: Michael Niedermayer
avformat/mxfdec: Check index_edit_rate 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> (cherry picked from commit ed49391961999f028e0bc55767d0eef6eeb15e49) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=a0c6c0379b4c3a322e9686e4d980d1a6f52d8efe --- libavformat/mxfdec.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c index cf0d6adfd6..c6d95bab80 100644 --- a/libavformat/mxfdec.c +++ b/libavformat/mxfdec.c @@ -1159,6 +1159,9 @@ 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; _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
