Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/webp.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/libavcodec/webp.c b/libavcodec/webp.c index d21536a286..a4fd295250 100644 --- a/libavcodec/webp.c +++ b/libavcodec/webp.c @@ -1423,6 +1423,10 @@ static int webp_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, bytestream2_skip(&gb, chunk_size); break; case MKTAG('V', 'P', '8', 'X'): + if (s->width || s->height || *got_frame) { + av_log(avctx, AV_LOG_ERROR, "Canvas dimensions are already set\n"); + return AVERROR_INVALIDDATA; + } vp8x_flags = bytestream2_get_byte(&gb); bytestream2_skip(&gb, 3); s->width = bytestream2_get_le24(&gb) + 1; -- 2.11.0 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel