udp: disallow UFO for sockets with SO_NO_CHECK option

[cascardo/linux.git] / net / ipv4 / fou.c

diff --git a/net/ipv4/fou.c b/net/ipv4/fou.c
index e0fcbbb..976f0dc 100644 (file)
--- a/net/ipv4/fou.c
+++ b/net/ipv4/fou.c
@@ -24,6 +24,7 @@ struct fou {
        u16 type;
        struct udp_offload udp_offloads;
        struct list_head list;
+       struct rcu_head rcu;
 };
 
 #define FOU_F_REMCSUM_NOPARTIAL BIT(0)
@@ -417,7 +418,7 @@ static void fou_release(struct fou *fou)
        list_del(&fou->list);
        udp_tunnel_sock_release(sock);
 
-       kfree(fou);
+       kfree_rcu(fou, rcu);
 }
 
 static int fou_encap_init(struct sock *sk, struct fou *fou, struct fou_cfg *cfg)
@@ -497,7 +498,7 @@ static int fou_create(struct net *net, struct fou_cfg *cfg,
        sk->sk_allocation = GFP_ATOMIC;
 
        if (cfg->udp_config.family == AF_INET) {
-               err = udp_add_offload(&fou->udp_offloads);
+               err = udp_add_offload(net, &fou->udp_offloads);
                if (err)
                        goto error;
        }