diff options
| -rw-r--r-- | libavcodec/webp.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libavcodec/webp.c b/libavcodec/webp.c index e0f7239968..9549c0e37e 100644 --- a/libavcodec/webp.c +++ b/libavcodec/webp.c @@ -694,6 +694,11 @@ static int decode_entropy_coded_image(WebPContext *s, enum ImageRole role, length = offset + get_bits(&s->gb, extra_bits) + 1; } prefix_code = huff_reader_get_symbol(&hg[HUFF_IDX_DIST], &s->gb); + if (prefix_code > 39) { + av_log(s->avctx, AV_LOG_ERROR, + "distance prefix code too large: %d\n", prefix_code); + return AVERROR_INVALIDDATA; + } if (prefix_code < 4) { distance = prefix_code + 1; } else { |