On Mon, Aug 05, 2024 at 02:10:18AM +0200, Kacper Michajlow wrote:
> On Sun, 4 Aug 2024 at 23:01, Michael Niedermayer <mich...@niedermayer.cc> 
> wrote:
> >
> > Fixes: use-of-uninitialized-value
> > Fixes: 
> > 70852/clusterfuzz-testcase-minimized-ffmpeg_IO_DEMUXER_fuzzer-5179190066872320
> >
> > Found-by: continuous fuzzing process 
> > https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
> > Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
> > ---
> >  libavformat/img2dec.c | 1 +
> >  1 file changed, 1 insertion(+)
> >
> > diff --git a/libavformat/img2dec.c b/libavformat/img2dec.c
> > index 20b1bc31f6a..3389fa818e9 100644
> > --- a/libavformat/img2dec.c
> > +++ b/libavformat/img2dec.c
> > @@ -563,6 +563,7 @@ int ff_img_read_packet(AVFormatContext *s1, AVPacket 
> > *pkt)
> >          }
> >          goto fail;
> >      } else {
> > +        memset(pkt->data + pkt->size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
> >          s->img_count++;
> >          s->img_number++;
> >          s->pts++;
> > --
> > 2.45.2
> 
> I've also had this one
> (https://patchwork.ffmpeg.org/project/ffmpeg/patch/20240627004037.1336-3-kaspe...@gmail.com/),
> but probably it is better to do it only in the else branch here. So,

> LGTM.

will apply

thx

[...]
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Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

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