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| author | Michael Niedermayer <michael@niedermayer.cc> | 2024-03-26 00:27:39 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2024-03-26 23:25:37 +0100 |
| commit | f01a89c5a378cb7b55a0bcb5763cfb1da83b81f1 (patch) | |
| tree | 463be19e5ff7aef1b9682ae7cf5d4f9536943430 | |
| parent | 746203af3116288b1dd4442e46a5724ba759e831 (diff) | |
| download | ffmpeg-f01a89c5a378cb7b55a0bcb5763cfb1da83b81f1.tar.gz | |
avformat/mov: use 64bit for intermediate for rounding
Fixes: signed integer overflow: 1768972133 + 968491058 cannot be represented in type 'int'
Fixes: 62276/clusterfuzz-testcase-minimized-ffmpeg_dem_MOV_fuzzer-4802790784303104
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/mov.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/mov.c b/libavformat/mov.c index 8483b34a9a..e7aa8d1833 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -8991,7 +8991,7 @@ static int mov_read_timecode_track(AVFormatContext *s, AVStream *st) /* 60 fps content have tmcd_nb_frames set to 30 but tc_rate set to 60, so * we multiply the frame number with the quotient. * See tickets #9492, #9710. */ - rounded_tc_rate = (tc_rate.num + tc_rate.den / 2) / tc_rate.den; + rounded_tc_rate = (tc_rate.num + tc_rate.den / 2LL) / tc_rate.den; /* Work around files where tmcd_nb_frames is rounded down from frame rate * instead of up. See ticket #5978. */ if (tmcd_nb_frames == tc_rate.num / tc_rate.den && |