ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Mon Oct 19 16:24:58 2020 +0200| [685ed1cbd139d1da04d432a3d3be9929666761bf] | committer: Michael Niedermayer
avformat/sbgdec: Check for timestamp overflow in parse_time_sequence() Fixes: signed integer overflow: 3458015007900000256 + 6425686373040000000 cannot be represented in type 'long' Fixes: 26430/clusterfuzz-testcase-minimized-ffmpeg_dem_BRSTM_fuzzer-5761175004119040 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Nicolas George <geo...@nsup.org> Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=685ed1cbd139d1da04d432a3d3be9929666761bf --- libavformat/sbgdec.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavformat/sbgdec.c b/libavformat/sbgdec.c index c11244ef3d..4d6ae7abc5 100644 --- a/libavformat/sbgdec.c +++ b/libavformat/sbgdec.c @@ -538,6 +538,9 @@ static int parse_time_sequence(struct sbg_parser *p, int inblock) return AVERROR_INVALIDDATA; } ts.type = p->current_time.type; + + if (av_sat_add64(p->current_time.t, rel_ts) != p->current_time.t + (uint64_t)rel_ts) + return AVERROR_INVALIDDATA; ts.t = p->current_time.t + rel_ts; r = parse_fade(p, &fade); if (r < 0) _______________________________________________ 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".
