On Thu, Dec 26, 2024 at 12:28:16PM +1100, Peter Ross wrote: > On Wed, Dec 25, 2024 at 05:26:57AM +0100, Michael Niedermayer wrote: > > Fixes: use-of-uninitialized-value > > Fixes: > > 383170476/clusterfuzz-testcase-minimized-ffmpeg_dem_MLV_fuzzer-4696002884337664 > > > > Found-by: continuous fuzzing process > > https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > > Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > > --- > > libavformat/mlvdec.c | 6 ++++-- > > 1 file changed, 4 insertions(+), 2 deletions(-) > > > > diff --git a/libavformat/mlvdec.c b/libavformat/mlvdec.c > > index 1a6d38f37cb..985365326e8 100644 > > --- a/libavformat/mlvdec.c > > +++ b/libavformat/mlvdec.c > > @@ -82,13 +82,15 @@ static int check_file_header(AVIOContext *pb, uint64_t > > guid) > > static void read_string(AVFormatContext *avctx, AVIOContext *pb, const > > char *tag, unsigned size) > > { > > char * value = av_malloc(size + 1); > > + int ret; > > + > > if (!value) { > > avio_skip(pb, size); > > return; > > } > > > > - avio_read(pb, value, size); > > - if (!value[0]) { > > + ret = avio_read(pb, value, size); > > + if (ret != size || !value[0]) { > > av_free(value); > > return; > > } > > please apply
will apply thx [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB It is a danger to trust the dream we wish for rather than the science we have, -- Dr. Kenneth Brown
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