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| author | Michael Niedermayer <michael@niedermayer.cc> | 2024-10-09 20:47:34 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2024-10-25 22:46:40 +0200 |
| commit | 23088a5ff2b549fa4fc037bb9ed833fffbc89ca0 (patch) | |
| tree | c132d1978321cb9109a69547f843ce9548dc82ac | |
| parent | 3fe3014405494503a03c2e6eff4743db91a21c00 (diff) | |
| download | ffmpeg-23088a5ff2b549fa4fc037bb9ed833fffbc89ca0.tar.gz | |
avformat/mxfdec: Fix overflow in midpoint computation
Fixes: signed integer overflow: 4611686016549392399 + 9223372033098784800 cannot be represented in type 'long long'
Fixes: 368503277/clusterfuzz-testcase-minimized-ffmpeg_dem_MXF_fuzzer-5928227458056192
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/mxfdec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c index 27e8e0c261..9ecaa287bb 100644 --- a/libavformat/mxfdec.c +++ b/libavformat/mxfdec.c @@ -3896,7 +3896,7 @@ static int mxf_get_next_track_edit_unit(MXFContext *mxf, MXFTrack *track, int64_ a = -1; b = track->original_duration; while (b - 1 > a) { - m = (a + b) >> 1; + m = (a + (uint64_t)b) >> 1; if (mxf_edit_unit_absolute_offset(mxf, t, m, track->edit_rate, NULL, &offset, NULL, 0) < 0) return -1; if (offset < current_offset) |