diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index a4f838ec7c757d863b6ac06ba22fd990d1088c96..8a39b12611e1eff804357d0086a3deb64e797d9c 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -710,7 +710,7 @@ void __icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info,
 
 		rcu_read_lock();
 		if (rt_is_input_route(rt) &&
-		    net->ipv4.sysctl_icmp_errors_use_inbound_ifaddr)
+		    READ_ONCE(net->ipv4.sysctl_icmp_errors_use_inbound_ifaddr))
 			dev = dev_get_by_index_rcu(net, inet_iif(skb_in));
 
 		if (dev)
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index 2644e1249a42f905333e9abb2b75cf1f7f14349f..1c5abae1e6c78fac9318454016900fb266f770d9 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -578,7 +578,9 @@ static struct ctl_table ipv4_net_table[] = {
 		.data		= &init_net.ipv4.sysctl_icmp_errors_use_inbound_ifaddr,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= proc_dointvec
+		.proc_handler	= proc_dointvec,
+		.extra1		= SYSCTL_ZERO,
+		.extra2		= SYSCTL_ONE
 	},
 	{
 		.procname	= "icmp_ratelimit",