diff --git a/libavformat/asfdec.c b/libavformat/asfdec.c index aef61bbdd4..cbab9a2dd6 100644 --- a/libavformat/asfdec.c +++ b/libavformat/asfdec.c @@ -190,8 +190,13 @@ static int asf_read_unknown(AVFormatContext *s, const GUIDParseTable *g) if ((ret = detect_unknown_subobject(s, asf->unknown_offset, asf->unknown_size)) < 0) return ret; - } else + } else { + if (size < 24) { + av_log(s, AV_LOG_ERROR, "Too small size %"PRIu64" (< 24).\n", size); + return AVERROR_INVALIDDATA; + } avio_skip(pb, size - 24); + } return 0; }