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vmdav: more complete check for block_align, prevent out of array access.

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Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-11-15 17:44:18 +01:00
parent ea3eaa37b1
commit c2409a7c5b
1 changed files with 1 additions and 1 deletions
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2
libavcodec/vmdav.c
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@ -497,7 +497,7 @@ static av_cold int vmdaudio_decode_init(AVCodecContext *avctx)
av_log(avctx, AV_LOG_ERROR, "invalid number of channels\n");
return AVERROR(EINVAL);
}
if (avctx->block_align < 1) {
if (avctx->block_align < 1 || avctx->block_align % avctx->channels) {
av_log(avctx, AV_LOG_ERROR, "invalid block align\n");
return AVERROR(EINVAL);
}