From ebed7b6865761d0d903757c5121ca2dbfba055dd Mon Sep 17 00:00:00 2001 From: Justin Ruggles Date: Wed, 23 Feb 2011 13:11:05 -0500 Subject: [PATCH] vmdaudio: validate block type Signed-off-by: Ronald S. Bultje (cherry picked from commit 22f893e1c9f9387f0a021f775757130fa48e0180) --- libavcodec/vmdav.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/libavcodec/vmdav.c b/libavcodec/vmdav.c index a528d91190..b338da3904 100644 --- a/libavcodec/vmdav.c +++ b/libavcodec/vmdav.c @@ -518,6 +518,10 @@ static int vmdaudio_decode_frame(AVCodecContext *avctx, return buf_size; block_type = buf[6]; + if (block_type < BLOCK_TYPE_AUDIO || block_type > BLOCK_TYPE_SILENCE) { + av_log(avctx, AV_LOG_ERROR, "unknown block type: %d\n", block_type); + return AVERROR(EINVAL); + } if (block_type == BLOCK_TYPE_AUDIO) { /* the chunk contains audio */ -- 2.11.0