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-rw-r--r--net/core/net_namespace.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 72b4c184dd8..7c52fe277b6 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -140,6 +140,9 @@ static void cleanup_net(struct work_struct *work)
140 struct pernet_operations *ops; 140 struct pernet_operations *ops;
141 struct net *net; 141 struct net *net;
142 142
143 /* Be very certain incoming network packets will not find us */
144 rcu_barrier();
145
143 net = container_of(work, struct net, work); 146 net = container_of(work, struct net, work);
144 147
145 mutex_lock(&net_mutex); 148 mutex_lock(&net_mutex);