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vmdaudio: validate block type

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Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 22f893e1c9)
This commit is contained in:
Justin Ruggles 2011-02-23 13:11:05 -05:00 committed by Michael Niedermayer
parent 149d36877a
commit ebed7b6865
1 changed files with 4 additions and 0 deletions
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4
libavcodec/vmdav.c
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@ -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 */