Fixes: signed integer overflow: 2 * -4962931467012268000 cannot be represented in type 'long' Fixes: 376496313/clusterfuzz-testcase-minimized-ffmpeg_dem_MXF_fuzzer-4921469185884160
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 | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c index 9ecaa287bb4..958a8548e84 100644 --- a/libavformat/mxfdec.c +++ b/libavformat/mxfdec.c @@ -1924,6 +1924,8 @@ static int mxf_edit_unit_absolute_offset(MXFContext *mxf, MXFIndexTable *index_t // clamp to actual range of index index_end = av_sat_add64(last_segment->index_start_position, last_segment->index_duration); edit_unit = FFMAX(FFMIN(edit_unit, index_end), first_segment->index_start_position); + if (edit_unit < 0) + return AVERROR_PATCHWELCOME; // guess which table segment this edit unit is in // saturation is fine since it's just a guess -- 2.47.0 _______________________________________________ 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".
