From 569d18aa9dc989c37bb4d4b968026fe5afa6fff9 Mon Sep 17 00:00:00 2001 From: Martin Storsjö Date: Mon, 16 Sep 2013 15:36:24 +0300 Subject: matroskadec: Verify realaudio codec parameters MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org Signed-off-by: Martin Storsjö --- libavformat/matroskadec.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'libavformat/matroskadec.c') diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c index e8ef81f3d1..dc32fd1cc1 100644 --- a/libavformat/matroskadec.c +++ b/libavformat/matroskadec.c @@ -1622,6 +1622,10 @@ static int matroska_read_header(AVFormatContext *s) track->audio.sub_packet_h = avio_rb16(&b); track->audio.frame_size = avio_rb16(&b); track->audio.sub_packet_size = avio_rb16(&b); + if (flavor <= 0 || track->audio.coded_framesize <= 0 || + track->audio.sub_packet_h <= 0 || track->audio.frame_size <= 0 || + track->audio.sub_packet_size <= 0) + return AVERROR_INVALIDDATA; track->audio.buf = av_malloc(track->audio.frame_size * track->audio.sub_packet_h); if (codec_id == AV_CODEC_ID_RA_288) { st->codec->block_align = track->audio.coded_framesize; -- cgit v1.2.3