ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Mon Mar 25 03:13:50 2024 +0100| [2882d30e3acfc3155e2be11db653c7c721f94f34] | committer: Michael Niedermayer
avformat/mov: Check edit list for overflow Fixes: 67492/clusterfuzz-testcase-minimized-ffmpeg_dem_MOV_fuzzer-5778297231310848 Fixes: signed integer overflow: 2314885530818453536 + 7782220156096217088 cannot be represented in type 'long' Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=2882d30e3acfc3155e2be11db653c7c721f94f34 --- libavformat/mov.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/libavformat/mov.c b/libavformat/mov.c index 14f43bf906..7b1f90c890 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -3686,6 +3686,10 @@ static int get_edit_list_entry(MOVContext *mov, } *edit_list_duration = av_rescale(*edit_list_duration, msc->time_scale, global_timescale); + + if (*edit_list_duration + (uint64_t)*edit_list_media_time > INT64_MAX) + *edit_list_duration = 0; + return 1; } _______________________________________________ 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".
