diff mbox series

[v5,3/5] nfnetlink_log: exit_net cleanup check added

Message ID 51bcde50-cca2-ccda-1ba0-1d7e5b6e13e4@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, 11:33 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_log.c | 4 ++++
 1 file changed, 4 insertions(+)
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Patch

diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c
index cad6498..23d75b1 100644
--- a/net/netfilter/nfnetlink_log.c
+++ b/net/netfilter/nfnetlink_log.c
@@ -1093,10 +1093,14 @@  static int __net_init nfnl_log_net_init(struct net *net)
 
 static void __net_exit nfnl_log_net_exit(struct net *net)
 {
+	unsigned int i;
+	struct nfnl_log_net *log = nfnl_log_pernet(net);
 #ifdef CONFIG_PROC_FS
 	remove_proc_entry("nfnetlink_log", net->nf.proc_netfilter);
 #endif
 	nf_log_unset(net, &nfulnl_logger);
+	for (i = 0; i < INSTANCE_BUCKETS; i++)
+		WARN_ON_ONCE(!hlist_empty(&log->instance_table[i]));
 }
 
 static struct pernet_operations nfnl_log_net_ops = {