diff options
Diffstat (limited to 'net/ipv4/fib_frontend.c')
| -rw-r--r-- | net/ipv4/fib_frontend.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c index 2267c1fad879..18f5e509281a 100644 --- a/net/ipv4/fib_frontend.c +++ b/net/ipv4/fib_frontend.c @@ -30,6 +30,7 @@ #include <linux/errno.h> #include <linux/in.h> #include <linux/inet.h> +#include <linux/inetdevice.h> #include <linux/netdevice.h> #include <linux/if_arp.h> #include <linux/skbuff.h> @@ -407,7 +408,7 @@ 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; @@ -544,12 +545,16 @@ 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); |