diff options
| -rw-r--r-- | net/l2tp/l2tp_ip.c | 4 | ||||
| -rw-r--r-- | net/l2tp/l2tp_ip6.c | 8 |
2 files changed, 8 insertions, 4 deletions
diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c index 6af09e188e52..4db5a554bdbd 100644 --- a/net/l2tp/l2tp_ip.c +++ b/net/l2tp/l2tp_ip.c @@ -50,11 +50,13 @@ static struct sock *__l2tp_ip_bind_lookup(const struct net *net, __be32 laddr, sk_for_each_bound(sk, &l2tp_ip_bind_table) { const struct l2tp_ip_sock *l2tp = l2tp_ip_sk(sk); const struct inet_sock *inet = inet_sk(sk); + int bound_dev_if; if (!net_eq(sock_net(sk), net)) continue; - if (sk->sk_bound_dev_if && dif && sk->sk_bound_dev_if != dif) + bound_dev_if = READ_ONCE(sk->sk_bound_dev_if); + if (bound_dev_if && dif && bound_dev_if != dif) continue; if (inet->inet_rcv_saddr && laddr && diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c index 217c7192691e..c6ff8bf9b55f 100644 --- a/net/l2tp/l2tp_ip6.c +++ b/net/l2tp/l2tp_ip6.c @@ -62,11 +62,13 @@ static struct sock *__l2tp_ip6_bind_lookup(const struct net *net, const struct in6_addr *sk_laddr = inet6_rcv_saddr(sk); const struct in6_addr *sk_raddr = &sk->sk_v6_daddr; const struct l2tp_ip6_sock *l2tp = l2tp_ip6_sk(sk); + int bound_dev_if; if (!net_eq(sock_net(sk), net)) continue; - if (sk->sk_bound_dev_if && dif && sk->sk_bound_dev_if != dif) + bound_dev_if = READ_ONCE(sk->sk_bound_dev_if); + if (bound_dev_if && dif && bound_dev_if != dif) continue; if (sk_laddr && !ipv6_addr_any(sk_laddr) && @@ -445,7 +447,7 @@ static int l2tp_ip6_getname(struct socket *sock, struct sockaddr *uaddr, lsa->l2tp_conn_id = lsk->conn_id; } if (ipv6_addr_type(&lsa->l2tp_addr) & IPV6_ADDR_LINKLOCAL) - lsa->l2tp_scope_id = sk->sk_bound_dev_if; + lsa->l2tp_scope_id = READ_ONCE(sk->sk_bound_dev_if); return sizeof(*lsa); } @@ -560,7 +562,7 @@ static int l2tp_ip6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) } if (fl6.flowi6_oif == 0) - fl6.flowi6_oif = sk->sk_bound_dev_if; + fl6.flowi6_oif = READ_ONCE(sk->sk_bound_dev_if); if (msg->msg_controllen) { opt = &opt_space; |