---
libavcodec/adx.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/libavcodec/adx.c b/libavcodec/adx.c
index aa90fd8..1e5d89c 100644
--- a/libavcodec/adx.c
+++ b/libavcodec/adx.c
@@ -58,7 +58,7 @@ int avpriv_adx_decode_header(AVCodecContext *avctx, const
uint8_t *buf,
/* channels */
avctx->channels = buf[7];
- if (avctx->channels > 2)
+ if (avctx->channels <= 0 || avctx->channels > 2)
return AVERROR_INVALIDDATA;
/* sample rate */
--
1.7.1
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