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Diffstat (limited to 'net/ipv6/inet6_connection_sock.c')
-rw-r--r--net/ipv6/inet6_connection_sock.c24
1 files changed, 16 insertions, 8 deletions
diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c
index 3064785..9bfab19 100644
--- a/net/ipv6/inet6_connection_sock.c
+++ b/net/ipv6/inet6_connection_sock.c
@@ -31,25 +31,33 @@ int inet6_csk_bind_conflict(const struct sock *sk,
const struct inet_bind_bucket *tb, bool relax)
{
const struct sock *sk2;
- const struct hlist_node *node;
+ int reuse = sk->sk_reuse;
+ int reuseport = sk->sk_reuseport;
+ kuid_t uid = sock_i_uid((struct sock *)sk);
/* We must walk the whole port owner list in this case. -DaveM */
/*
* See comment in inet_csk_bind_conflict about sock lookup
* vs net namespaces issues.
*/
- sk_for_each_bound(sk2, node, &tb->owners) {
+ sk_for_each_bound(sk2, &tb->owners) {
if (sk != sk2 &&
(!sk->sk_bound_dev_if ||
!sk2->sk_bound_dev_if ||
- sk->sk_bound_dev_if == sk2->sk_bound_dev_if) &&
- (!sk->sk_reuse || !sk2->sk_reuse ||
- sk2->sk_state == TCP_LISTEN) &&
- ipv6_rcv_saddr_equal(sk, sk2))
- break;
+ sk->sk_bound_dev_if == sk2->sk_bound_dev_if)) {
+ if ((!reuse || !sk2->sk_reuse ||
+ sk2->sk_state == TCP_LISTEN) &&
+ (!reuseport || !sk2->sk_reuseport ||
+ (sk2->sk_state != TCP_TIME_WAIT &&
+ !uid_eq(uid,
+ sock_i_uid((struct sock *)sk2))))) {
+ if (ipv6_rcv_saddr_equal(sk, sk2))
+ break;
+ }
+ }
}
- return node != NULL;
+ return sk2 != NULL;
}
EXPORT_SYMBOL_GPL(inet6_csk_bind_conflict);
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