tor 2025-07-24 klockan 00:51 +0200 skrev Marton Balint: > > > On Wed, 23 Jul 2025, Tomas Härdin wrote: > > > ons 2025-07-23 klockan 13:45 +0200 skrev Michael Niedermayer: > > > Fixes: read of uninitialized memory > > > Fixes: 391916474/clusterfuzz-testcase-minimized- > > > ffmpeg_dem_MXF_fuzzer-4935250956845056 > > > > > > 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 | 4 +++- > > > 1 file changed, 3 insertions(+), 1 deletion(-) > > > > > > diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c > > > index 0eed13d850d..184e97256cd 100644 > > > --- a/libavformat/mxfdec.c > > > +++ b/libavformat/mxfdec.c > > > @@ -491,7 +491,9 @@ static int klv_read_packet(MXFContext *mxf, > > > KLVPacket *klv, AVIOContext *pb) > > > return AVERROR_INVALIDDATA; > > > > > > memcpy(klv->key, mxf_klv_key, 4); > > > - avio_read(pb, klv->key + 4, 12); > > > + int ret = ffio_read_size(pb, klv->key + 4, 12); > > > + if (ret < 0) > > > + return ret; > > > > ret != 12 is better. If it's non-negative then return AVERROR_EOF > > ffio_read_size always returns the requested size or negative.
Herp. Well in that case it's fine yes /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".
