diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index bb98045..fdab6a5 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -23,6 +23,8 @@
 #include <linux/init.h>
 #include <linux/kmod.h>
 #include <linux/netlink.h>
+#include <net/net_namespace.h>
+#include <net/sock.h>
 #include <net/netlink.h>
 #include <net/pkt_sched.h>
 #include <net/pkt_cls.h>
@@ -119,6 +121,7 @@
 
 static int tc_ctl_tfilter(struct sk_buff *skb, struct nlmsghdr *n, void *arg)
 {
+	struct net *net = skb->sk->sk_net;
 	struct rtattr **tca;
 	struct tcmsg *t;
 	u32 protocol;
@@ -135,6 +138,9 @@
 	unsigned long fh;
 	int err;
 
+	if (net != &init_net)
+		return -EINVAL;
+
 replay:
 	tca = arg;
 	t = NLMSG_DATA(n);
@@ -375,6 +381,7 @@
 
 static int tc_dump_tfilter(struct sk_buff *skb, struct netlink_callback *cb)
 {
+	struct net *net = skb->sk->sk_net;
 	int t;
 	int s_t;
 	struct net_device *dev;
@@ -385,6 +392,9 @@
 	const struct Qdisc_class_ops *cops;
 	struct tcf_dump_args arg;
 
+	if (net != &init_net)
+		return 0;
+
 	if (cb->nlh->nlmsg_len < NLMSG_LENGTH(sizeof(*tcm)))
 		return skb->len;
 	if ((dev = dev_get_by_index(&init_net, tcm->tcm_ifindex)) == NULL)