diff options
| -rw-r--r-- | net/ipv4/fib_frontend.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c index 882f88f6d13b..19b1b984d687 100644 --- a/net/ipv4/fib_frontend.c +++ b/net/ipv4/fib_frontend.c @@ -544,12 +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); |