From: Andre Noll <maan@tuebingen.mpg.de>
Date: Thu, 8 Dec 2016 20:32:32 +0000 (+0100)
Subject: wmadec: Set data size to 0 if nothing was decoded.
X-Git-Tag: v0.5.7~11^2~2
X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=commitdiff_plain;h=c6dff555d7ed916d47b5739923613a265042c1a0;ds=sidebyside

wmadec: Set data size to 0 if nothing was decoded.

Without this, we might feed uninitialized data into the output stream.
---

diff --git a/wmadec_filter.c b/wmadec_filter.c
index f695d869..41dd51f9 100644
--- a/wmadec_filter.c
+++ b/wmadec_filter.c
@@ -1068,10 +1068,13 @@ static int wma_decode_superframe(struct private_wmadec_data *pwd, void *data,
 
 	if (buf_size == 0) {
 		pwd->last_superframe_len = 0;
+		*data_size = 0;
 		return 0;
 	}
-	if (buf_size < pwd->ahi.block_align)
+	if (buf_size < pwd->ahi.block_align) {
+		*data_size = 0;
 		return 0;
+	}
 	buf_size = pwd->ahi.block_align;
 	samples = data;
 	init_get_bits(&pwd->gb, buf, buf_size);