Pull 5165 into release branch

[powerpc.git] / net / ipv4 / fib_frontend.c

diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index e61bc71..19b1b98 100644 (file)
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -266,8 +266,7 @@ int ip_rt_ioctl(unsigned int cmd, void __user *arg)
                                if (tb)
                                        err = tb->tb_insert(tb, &req.rtm, &rta, &req.nlh, NULL);
                        }
-                       if (rta.rta_mx)
-                               kfree(rta.rta_mx);
+                       kfree(rta.rta_mx);
                }
                rtnl_unlock();
                return err;
@@ -408,7 +407,7 @@ static void fib_magic(int cmd, int type, u32 dst, int dst_len, struct in_ifaddr
                tb->tb_delete(tb, &req.rtm, &rta, &req.nlh, NULL);
 }
 
-static void fib_add_ifaddr(struct in_ifaddr *ifa)
+void fib_add_ifaddr(struct in_ifaddr *ifa)
 {
        struct in_device *in_dev = ifa->ifa_dev;
        struct net_device *dev = in_dev->dev;
@@ -545,12 +544,16 @@ static void nl_fib_input(struct sock *sk, int len)
        struct sk_buff *skb = NULL;
         struct nlmsghdr *nlh = NULL;
        struct fib_result_nl *frn;
-       int err;
        u32 pid;     
        struct fib_table *tb;
        
-       skb = skb_recv_datagram(sk, 0, 0, &err);
+       skb = skb_dequeue(&sk->sk_receive_queue);
        nlh = (struct nlmsghdr *)skb->data;
+       if (skb->len < NLMSG_SPACE(0) || skb->len < nlh->nlmsg_len ||
+           nlh->nlmsg_len < NLMSG_LENGTH(sizeof(*frn))) {
+               kfree_skb(skb);
+               return;
+       }
        
        frn = (struct fib_result_nl *) NLMSG_DATA(nlh);
        tb = fib_get_table(frn->tb_id_in);
@@ -591,7 +594,7 @@ static int fib_inetaddr_event(struct notifier_block *this, unsigned long event,
                break;
        case NETDEV_DOWN:
                fib_del_ifaddr(ifa);
-               if (ifa->ifa_dev && ifa->ifa_dev->ifa_list == NULL) {
+               if (ifa->ifa_dev->ifa_list == NULL) {
                        /* Last address was deleted from this interface.
                           Disable IP.
                         */