1 files changed, 4 insertions, 1 deletions

diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 7f092fa912b..9b6a37d16fb 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -346,8 +346,11 @@ int inet6_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
                 goto out;
         }
 
-        if (addr_type != IPV6_ADDR_ANY)
+        if (addr_type != IPV6_ADDR_ANY) {
                 sk->sk_userlocks |= SOCK_BINDADDR_LOCK;
+                if (addr_type != IPV6_ADDR_MAPPED)
+                        np->ipv6only = 1;
+        }
         if (snum)
                 sk->sk_userlocks |= SOCK_BINDPORT_LOCK;
         inet->sport = htons(inet->num);