diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c
index 65fa18928fe3..774f68d1a2b3 100644
--- a/net/tipc/bearer.c
+++ b/net/tipc/bearer.c
@@ -661,6 +661,10 @@ static int tipc_l2_rcv_msg(struct sk_buff *skb, struct net_device *dev,
 {
 	struct tipc_bearer *b;
 
+	skb = skb_share_check(skb, GFP_ATOMIC);
+	if (!skb)
+		return NET_RX_DROP;
+
 	rcu_read_lock();
 	b = rcu_dereference(dev->tipc_ptr) ?:
 		rcu_dereference(orig_dev->tipc_ptr);