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| author | Ronald S. Bultje <rsbultje@gmail.com> | 2012-02-17 12:10:33 -0800 |
|---|---|---|
| committer | Reinhard Tartler <siretart@tauware.de> | 2012-02-26 10:03:15 +0100 |
| commit | cfd7d166e2ae68302329c059afa7c4778a70e9b5 (patch) | |
| tree | a705918dbcac09174c08cf2ef8a85dd34994f73e | |
| parent | 5bcd47cf63cb719e1c650d08cdfb7f4ede351367 (diff) | |
| download | ffmpeg-cfd7d166e2ae68302329c059afa7c4778a70e9b5.tar.gz | |
cook: prevent div-by-zero if channels is zero.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
(cherry picked from commit 941fc1ea1ed7f7d99a8b9e2607b41f2f2820394a)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
| -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 d2ed819b83..dc4c2ab170 100644 --- a/libavcodec/cook.c +++ b/libavcodec/cook.c @@ -1078,6 +1078,10 @@ static av_cold int cook_decode_init(AVCodecContext *avctx) q->sample_rate = avctx->sample_rate; q->nb_channels = avctx->channels; q->bit_rate = avctx->bit_rate; + if (!q->nb_channels) { + av_log(avctx, AV_LOG_ERROR, "Invalid number of channels\n"); + return AVERROR_INVALIDDATA; + } /* Initialize RNG. */ av_lfg_init(&q->random_state, 0); |