diff options
| author | Michael Niedermayer <[email protected]> | 2024-07-16 21:31:21 +0200 |
|---|---|---|
| committer | Michael Niedermayer <[email protected]> | 2024-07-21 15:29:25 +0200 |
| commit | d8d288479d3431d65318d957aab710b13714fc05 (patch) | |
| tree | 4008eae7b4b477f8c2e0bb269df0022aedab7c28 | |
| parent | d5ca373d7efa37d2d3911f0afbc85fad0dc86b38 (diff) | |
avformat/mxfdec: Reorder elements of expression in bisect loop
Fixes: signed integer overflow: 9223372036854775807 - -1 cannot be represented in type 'long'
Fixes: 68578/clusterfuzz-testcase-minimized-ffmpeg_dem_MXF_fuzzer-6032171648221184
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <[email protected]>
| -rw-r--r-- | libavformat/mxfdec.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c index a5863445ab..af0c8a3100 100644 --- a/libavformat/mxfdec.c +++ b/libavformat/mxfdec.c @@ -3821,8 +3821,7 @@ static int mxf_get_next_track_edit_unit(MXFContext *mxf, MXFTrack *track, int64_ a = -1; b = track->original_duration; - - while (b - a > 1) { + while (b - 1 > a) { m = (a + b) >> 1; if (mxf_edit_unit_absolute_offset(mxf, t, m, track->edit_rate, NULL, &offset, NULL, 0) < 0) return -1; |