netdev - [PATCH] smsc95xx: fix suspend buffer overflow

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Date:	Tue, 27 Nov 2012 13:23:43 +0000
From:	Steve Glendinning <steve.glendinning@...well.net>
To:	netdev@...r.kernel.org
Cc:	dan.carpenter@...cle.com,
	Steve Glendinning <steve.glendinning@...well.net>
Subject: [PATCH] smsc95xx: fix suspend buffer overflow

This patch fixes a buffer overflow introduced by bbd9f9e, where
the filter_mask array is accessed beyond its bounds.

Reported-by: Dan Carpenter <dan.carpenter@...cle.com>
Signed-off-by: Steve Glendinning <steve.glendinning@...well.net>
---
 drivers/net/usb/smsc95xx.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
index 79d495d..6cdc504 100644
--- a/drivers/net/usb/smsc95xx.c
+++ b/drivers/net/usb/smsc95xx.c
@@ -1281,7 +1281,7 @@ static int smsc95xx_suspend(struct usb_interface *intf, pm_message_t message)
 	}
 
 	if (pdata->wolopts & (WAKE_BCAST | WAKE_MCAST | WAKE_ARP | WAKE_UCAST)) {
-		u32 *filter_mask = kzalloc(32, GFP_KERNEL);
+		u32 *filter_mask = kzalloc(sizeof(u32) * 32, GFP_KERNEL);
 		u32 command[2];
 		u32 offset[2];
 		u32 crc[4];
-- 
1.7.10.4

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