On Tue, Sep 24, 2024 at 06:58:31PM +0200, Tomas Härdin wrote: > mån 2024-09-23 klockan 23:32 +0200 skrev Michael Niedermayer: > > Fixes: Use of uninitialized memory > > Fixes: 71444/clusterfuzz-testcase-minimized-ffmpeg_dem_MXF_fuzzer- > > 5448597561212928 > > > > 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, 2 insertions(+), 1 deletion(-) > > > > diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c > > index 24f4ed1c33d..b232c45f47d 100644 > > --- a/libavformat/mxfdec.c > > +++ b/libavformat/mxfdec.c > > @@ -671,7 +671,8 @@ static int mxf_decrypt_triplet(AVFormatContext > > *s, AVPacket *pkt, KLVPacket *klv > > if (size < 32 || size - 32 < orig_size || (int)orig_size != > > orig_size) > > return AVERROR_INVALIDDATA; > > avio_read(pb, ivec, 16); > > - avio_read(pb, tmpbuf, 16); > > + if (avio_read(pb, tmpbuf, 16) != 16) > > + return AVERROR_INVALIDDATA; > > I get the feeling mxfdec has a whole bunch of these..
yeah, and i have even forgotten to apply this one will apply it now at least [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB It is dangerous to be right in matters on which the established authorities are wrong. -- Voltaire
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