ons 2024-07-17 klockan 13:27 +0200 skrev Michael Niedermayer: > 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 <mich...@niedermayer.cc> > --- > libavformat/mxfdec.c | 3 +-- > 1 file changed, 1 insertion(+), 2 deletions(-) > > diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c > index a5863445ab5..af0c8a31007 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;
Should be OK since b is always >= 0. /Tomas _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
