linux-kernel - [PATCH 36/58] Hostap: copying wrong data prism2_ioctl

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Date:	Mon,  2 Sep 2013 09:54:21 +0100
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Dan Carpenter <dan.carpenter@...cle.com>,
	"John W. Linville" <linville@...driver.com>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 36/58] Hostap: copying wrong data prism2_ioctl_giwaplist()

3.5.7.21 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dan Carpenter <dan.carpenter@...cle.com>

commit 909bd5926d474e275599094acad986af79671ac9 upstream.

We want the data stored in "addr" and "qual", but the extra ampersands
mean we are copying stack data instead.

Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
Signed-off-by: John W. Linville <linville@...driver.com>
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
---
 drivers/net/wireless/hostap/hostap_ioctl.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/hostap/hostap_ioctl.c b/drivers/net/wireless/hostap/hostap_ioctl.c
index 18054d9..dbec2ff 100644
--- a/drivers/net/wireless/hostap/hostap_ioctl.c
+++ b/drivers/net/wireless/hostap/hostap_ioctl.c
@@ -522,9 +522,9 @@ static int prism2_ioctl_giwaplist(struct net_device *dev,
 
 	data->length = prism2_ap_get_sta_qual(local, addr, qual, IW_MAX_AP, 1);
 
-	memcpy(extra, &addr, sizeof(struct sockaddr) * data->length);
+	memcpy(extra, addr, sizeof(struct sockaddr) * data->length);
 	data->flags = 1; /* has quality information */
-	memcpy(extra + sizeof(struct sockaddr) * data->length, &qual,
+	memcpy(extra + sizeof(struct sockaddr) * data->length, qual,
 	       sizeof(struct iw_quality) * data->length);
 
 	kfree(addr);
-- 
1.8.3.2

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