ffmpeg | branch: release/4.4 | Michael Niedermayer <mich...@niedermayer.cc> | Wed Apr 28 16:53:52 2021 +0200| [da9e84fabd0285204df60a032e0846fe70be0068] | committer: Michael Niedermayer
avformat/mov: Fix incorrect overflow detection in mov_read_sidx() Fixes: signed integer overflow: 9223372036854775807 + 1442840321 cannot be represented in type 'long' Fixes: 33670/clusterfuzz-testcase-minimized-ffmpeg_dem_MOV_fuzzer-6644379491106816 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 200406d930eff3202f3230f188f85f4ab9cf4525) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=da9e84fabd0285204df60a032e0846fe70be0068 --- libavformat/mov.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/mov.c b/libavformat/mov.c index 56c538cf63..b49dd01543 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -5132,7 +5132,7 @@ static int mov_read_sidx(MOVContext *c, AVIOContext *pb, MOVAtom atom) if (frag_stream_info) frag_stream_info->sidx_pts = timestamp; - if (av_sat_add64(offset, size) != offset + size || + if (av_sat_add64(offset, size) != offset + (uint64_t)size || av_sat_add64(pts, duration) != pts + (uint64_t)duration ) return AVERROR_INVALIDDATA; _______________________________________________ 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".
