---
libavcodec/smacker.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/libavcodec/smacker.c b/libavcodec/smacker.c
index 496bbb5..f3dec7f 100644
--- a/libavcodec/smacker.c
+++ b/libavcodec/smacker.c
@@ -559,6 +559,10 @@ static av_cold int decode_end(AVCodecContext *avctx)
static av_cold int smka_decode_init(AVCodecContext *avctx)
{
+ if (avctx->channels < 1 || avctx->channels > 2) {
+ av_log(avctx, AV_LOG_ERROR, "invalid number of channels\n");
+ return AVERROR(EINVAL);
+ }
avctx->channel_layout = (avctx->channels==2) ? AV_CH_LAYOUT_STEREO :
AV_CH_LAYOUT_MONO;
avctx->sample_fmt = avctx->bits_per_coded_sample == 8 ? AV_SAMPLE_FMT_U8 :
AV_SAMPLE_FMT_S16;
return 0;
--
1.7.1
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