diff mbox series

[v5,4/5] nfnetlink_gueue: exit_net cleanup check added

Message ID 12cadd19-9559-d9b1-b775-47f6af75a062@virtuozzo.com
State Accepted
Delegated to: Pablo Neira
Headers show
Series netfilter: exit_net checks for objects initialized in net_init hook | expand

Commit Message

Vasily Averin Nov. 12, 2017, 11:34 a.m. UTC 
Be sure that instance_table array initialized in net_init hook
was return to initial state.

Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Acked-by: Florian Westphal <fw@strlen.de>
---
 net/netfilter/nfnetlink_queue.c | 5 +++++
 1 file changed, 5 insertions(+)
diff mbox series

Patch

diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c
index c979662..3cae6d8 100644
--- a/net/netfilter/nfnetlink_queue.c
+++ b/net/netfilter/nfnetlink_queue.c
@@ -1512,10 +1512,15 @@  static int __net_init nfnl_queue_net_init(struct net *net)
 
 static void __net_exit nfnl_queue_net_exit(struct net *net)
 {
+	unsigned int i;
+	struct nfnl_queue_net *q = nfnl_queue_pernet(net);
+
 	nf_unregister_queue_handler(net);
 #ifdef CONFIG_PROC_FS
 	remove_proc_entry("nfnetlink_queue", net->nf.proc_netfilter);
 #endif
+	for (i = 0; i < INSTANCE_BUCKETS; i++)
+		WARN_ON_ONCE(!hlist_empty(&q->instance_table[i]));
 }
 
 static void nfnl_queue_net_exit_batch(struct list_head *net_exit_list)