From a27b58fed90cc5654e2daf1d292cc5bc61be4dd7 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Mon, 30 Oct 2006 15:06:12 -0800
Subject: [NET]: fix uaccess handling

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/netlink/af_netlink.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'net/netlink')

diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index d56e0d21f91..d527c8977b1 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -1075,8 +1075,9 @@ static int netlink_getsockopt(struct socket *sock, int level, int optname,
 			return -EINVAL;
 		len = sizeof(int);
 		val = nlk->flags & NETLINK_RECV_PKTINFO ? 1 : 0;
-		put_user(len, optlen);
-		put_user(val, optval);
+		if (put_user(len, optlen) ||
+		    put_user(val, optval))
+			return -EFAULT;
 		err = 0;
 		break;
 	default:
-- 
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