ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Thu Aug 26 13:37:27 2021 +0200| [4de4bc06fdfd0383f3d9012c6557a38408a09d28] | committer: Michael Niedermayer
avformat/mov: Check dts for overflow in mov_read_trun() Fixes: signed integer overflow: 9223372034248226491 + 3275247799 cannot be represented in type 'long' Fixes: clusterfuzz-testcase-minimized-audio_decoder_fuzzer-4538729166077952 Reported-by: Matt Wolenetz <wolen...@google.com> Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=4de4bc06fdfd0383f3d9012c6557a38408a09d28 --- libavformat/mov.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavformat/mov.c b/libavformat/mov.c index da4c5d60f8..c5583e07c7 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -4953,6 +4953,8 @@ static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom) "size %u, distance %d, keyframe %d\n", st->index, index_entry_pos, offset, dts, sample_size, distance, keyframe); distance++; + if (av_sat_add64(dts, sample_duration) != dts + (uint64_t)sample_duration) + return AVERROR_INVALIDDATA; dts += sample_duration; offset += sample_size; sc->data_size += sample_size; _______________________________________________ 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".
