On Fri, Jul 12, 2019 at 10:30:26AM +0200, Paul B Mahol wrote: > On 7/11/19, Michael Niedermayer <mich...@niedermayer.cc> wrote: > > Fixes: out of array access > > Fixes: > > 15540/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APNG_fuzzer-5684905029140480 > > > > Found-by: continuous fuzzing process > > https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > > Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > > --- > > libavcodec/pngdec.c | 3 +++ > > 1 file changed, 3 insertions(+) > > > > diff --git a/libavcodec/pngdec.c b/libavcodec/pngdec.c > > index 5209e342db..bf5a5191cc 100644 > > --- a/libavcodec/pngdec.c > > +++ b/libavcodec/pngdec.c > > @@ -1391,6 +1391,9 @@ exit_loop: > > if (CONFIG_PNG_DECODER && avctx->codec_id != AV_CODEC_ID_APNG) > > handle_p_frame_png(s, p); > > else if (CONFIG_APNG_DECODER && > > + s->previous_picture.f->width == p->width && > > + s->previous_picture.f->height== p->height && > > + s->previous_picture.f->format== p->format && > > avctx->codec_id == AV_CODEC_ID_APNG && > > (ret = handle_p_frame_apng(avctx, s, p)) < 0) > > goto fail; > > -- > > 2.22.0 > > Probably OK
will apply thanks [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB The worst form of inequality is to try to make unequal things equal. -- Aristotle
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