From: Michael Niedermayer <[email protected]>
This fixes crashes with invalid files.
Based on patch by Piotr Bandurski.
---
libavcodec/wmadec.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/libavcodec/wmadec.c b/libavcodec/wmadec.c
index a730059..4fdfe74 100644
--- a/libavcodec/wmadec.c
+++ b/libavcodec/wmadec.c
@@ -102,6 +102,11 @@ static int wma_decode_init(AVCodecContext * avctx)
s->use_bit_reservoir = flags2 & 0x0002;
s->use_variable_block_len = flags2 & 0x0004;
+ if (avctx->channels > MAX_CHANNELS) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid number of channels (%d)\n",
avctx->channels);
+ return AVERROR(EINVAL);
+ }
+
if(ff_wma_init(avctx, flags2)<0)
return -1;
--
1.7.9.4
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