On Thu, Apr 11, 2019 at 10:21:49AM +0200, Paul B Mahol wrote: > On 4/11/19, Michael Niedermayer <mich...@niedermayer.cc> wrote: > > Fixes: out of array access > > Fixes: > > 14110/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AGM_fuzzer-5649184864075776 > > > > Found-by: continuous fuzzing process > > https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > > Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > > --- > > libavcodec/agm.c | 3 +++ > > 1 file changed, 3 insertions(+) > > > > diff --git a/libavcodec/agm.c b/libavcodec/agm.c > > index cbd45e8095..b538854613 100644 > > --- a/libavcodec/agm.c > > +++ b/libavcodec/agm.c > > @@ -578,6 +578,9 @@ static int decode_frame(AVCodecContext *avctx, void > > *data, > > av_log(avctx, AV_LOG_ERROR, "Missing reference frame.\n"); > > return AVERROR_INVALIDDATA; > > } > > + if (s->prev_frame-> width != frame->width || > > + s->prev_frame->height != frame->height) > > + return AVERROR_INVALIDDATA; > > > > if (!(s->flags & 2)) { > > ret = av_frame_copy(frame, s->prev_frame); > > LGTM
will apply thx [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Concerning the gods, I have no means of knowing whether they exist or not or of what sort they may be, because of the obscurity of the subject, and the brevity of human life -- Protagoras
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