[FFmpeg-devel] [PATCH] avformat/ifv: Check for EOF in read_index()

[Michael Niedermayer]

On Fri, Jul 19, 2019 at 12:32:06AM +1000, Peter Ross wrote:
> On Thu, Jul 18, 2019 at 01:42:23AM +0200, Michael Niedermayer wrote:
> > Fixes: Timeout
> > Fixes: 15567/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5758451487080448
> > 
> > Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
> > Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
> > ---
> >  libavformat/ifv.c | 2 ++
> >  1 file changed, 2 insertions(+)
> > 
> > diff --git a/libavformat/ifv.c b/libavformat/ifv.c
> > index 6acbb29a75..f95e9b0e52 100644
> > --- a/libavformat/ifv.c
> > +++ b/libavformat/ifv.c
> > @@ -68,6 +68,8 @@ static int read_index(AVFormatContext *s,
> >      }
> >  
> >      for (i = start_index; i < end_index; i++) {
> > +        if (avio_feof(s->pb))
> > +            return AVERROR_EOF;
> >          pos = avio_rl32(s->pb);
> >          size = avio_rl32(s->pb);
> >  
> 
> i approve.

will apply

thanks

[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Breaking DRM is a little like attempting to break through a door even
though the window is wide open and the only thing in the house is a bunch
of things you dont want and which you would get tomorrow for free anyway
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