--- zzzz-none-000/linux-4.4.60/net/core/net_namespace.c	2017-04-08 07:53:53.000000000 +0000
+++ scorpion-7490-727/linux-4.4.60/net/core/net_namespace.c	2021-02-04 17:41:59.000000000 +0000
@@ -261,7 +261,7 @@
 	spin_lock_irqsave(&net->nsid_lock, flags);
 	peer = idr_find(&net->netns_ids, id);
 	if (peer)
-		get_net(peer);
+		peer = maybe_get_net(peer);
 	spin_unlock_irqrestore(&net->nsid_lock, flags);
 	rcu_read_unlock();