diff options
| -rw-r--r-- | libavcodec/libvorbisdec.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/libavcodec/libvorbisdec.c b/libavcodec/libvorbisdec.c index ecf690a553..89cbbb41b6 100644 --- a/libavcodec/libvorbisdec.c +++ b/libavcodec/libvorbisdec.c @@ -49,8 +49,16 @@ static int oggvorbis_decode_init(AVCodecContext *avccontext) { vorbis_comment_init(&context->vc) ; if(p[0] == 0 && p[1] == 30) { + int sizesum = 0; for(i = 0; i < 3; i++){ hsizes[i] = bytestream_get_be16((const uint8_t **)&p); + sizesum += 2 + hsizes[i]; + if (sizesum > avccontext->extradata_size) { + av_log(avccontext, AV_LOG_ERROR, "vorbis extradata too small\n"); + ret = AVERROR_INVALIDDATA; + goto error; + } + headers[i] = p; p += hsizes[i]; } |