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| author | Michael Niedermayer <michaelni@gmx.at> | 2012-11-17 03:42:48 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2012-11-17 03:43:17 +0100 |
| commit | 774830050aff71bcf02c68c0767f401240385842 (patch) | |
| tree | cd23d0975b6f84b5faaeca7048d42f9aae3f1f8d | |
| parent | 84281d111c957f8c71691178bdcbc66c7c352f41 (diff) | |
| download | ffmpeg-774830050aff71bcf02c68c0767f401240385842.tar.gz | |
cook: check subbands more completely, fix out of array read.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
| -rw-r--r-- | libavcodec/cook.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavcodec/cook.c b/libavcodec/cook.c index a02dd86744..0092f25307 100644 --- a/libavcodec/cook.c +++ b/libavcodec/cook.c @@ -1197,6 +1197,10 @@ static av_cold int cook_decode_init(AVCodecContext *avctx) av_log_ask_for_sample(avctx, "subbands > 50\n"); return AVERROR_PATCHWELCOME; } + if (q->subpacket[s].subbands == 0) { + av_log_ask_for_sample(avctx, "subbands is 0\n"); + return AVERROR_PATCHWELCOME; + } q->subpacket[s].gains1.now = q->subpacket[s].gain_1; q->subpacket[s].gains1.previous = q->subpacket[s].gain_2; q->subpacket[s].gains2.now = q->subpacket[s].gain_3; |