On Mon, Aug 19, 2019 at 8:17 AM Jean-Baptiste Kempf <j...@videolan.org> wrote:
> You need to explain why. A "NAK" is not enough. > > 16k pixels x 16k is a large size already for vc1. > And for any other codecs.... > > On Sun, Aug 18, 2019, at 12:45, Paul B Mahol wrote: > > NAK > > > > On Thu, Aug 15, 2019 at 11:51 PM Michael Niedermayer > <mich...@niedermayer.cc> > > wrote: > > > > > Fixes: overflow in aspect ratio calculation > > > Fixes: signed integer overflow: 393215 * 14594 cannot be represented in > > > type 'int' > > > Fixes: > > > > 15728/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMV3IMAGE_fuzzer-5661588893204480 > > > > > > Found-by: continuous fuzzing process > > > https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > > > Signed-off-by > > > < > https://github.com/google/oss-fuzz/tree/master/projects/ffmpegSigned-off-by > >: > > > Michael Niedermayer <mich...@niedermayer.cc> > > > --- > > > libavcodec/vc1dec.c | 5 +++++ > > > 1 file changed, 5 insertions(+) > > > > > > diff --git a/libavcodec/vc1dec.c b/libavcodec/vc1dec.c > > > index 9519864c55..2636ea701f 100644 > > > --- a/libavcodec/vc1dec.c > > > +++ b/libavcodec/vc1dec.c > > > @@ -426,6 +426,11 @@ static av_cold int vc1_decode_init(AVCodecContext > > > *avctx) > > > GetBitContext gb; > > > int ret; > > > > > > + if (avctx->width > 1 << 14 || avctx->height > 1 << 14) { > > > + avpriv_request_sample(avctx, "Huge resolution"); > > > + return AVERROR_PATCHWELCOME; > > > + } > > > + > > > /* save the container output size for WMImage */ > > > v->output_width = avctx->width; > > > v->output_height = avctx->height; > > > -- > > > 2.22.1 > > > > > > _______________________________________________ > > > ffmpeg-devel mailing list > > > ffmpeg-devel@ffmpeg.org > > > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > > > > > To unsubscribe, visit link above, or email > > > ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe". > > _______________________________________________ > > ffmpeg-devel mailing list > > ffmpeg-devel@ffmpeg.org > > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > > > To unsubscribe, visit link above, or email > > ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe". > > -- > Jean-Baptiste Kempf - President > +33 672 704 734 > _______________________________________________ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > To unsubscribe, visit link above, or email > ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe". _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
