1 files changed, 4 insertions, 1 deletions

diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index aae410bb655a..28fe8da4e1ac 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -479,7 +479,7 @@ int inet_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
 
         snum = ntohs(addr->sin_port);
         err = -EACCES;
-        if (snum && snum < PROT_SOCK &&
+        if (snum && snum < inet_prot_sock(net) &&
             !ns_capable(net->user_ns, CAP_NET_BIND_SERVICE))
                 goto out;
 
@@ -1700,6 +1700,9 @@ static __net_init int inet_init_net(struct net *net)
         net->ipv4.sysctl_ip_default_ttl = IPDEFTTL;
         net->ipv4.sysctl_ip_dynaddr = 0;
         net->ipv4.sysctl_ip_early_demux = 1;
+#ifdef CONFIG_SYSCTL
+        net->ipv4.sysctl_ip_prot_sock = PROT_SOCK;
+#endif
 
         return 0;
 }