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authorPablo Neira Ayuso <pablo@netfilter.org>2013-01-10 16:12:01 +0100
committerPablo Neira Ayuso <pablo@netfilter.org>2013-01-12 14:12:36 +0100
commit1e47ee8367babe6a5e8adf44a714c7086657b87e (patch)
tree09596b40accfa9adcf21f7b0a26f99cee7d4e0e7 /include
parent4610476d89d53714ca94aae081fa035908bc137a (diff)
downloadlinux-1e47ee8367babe6a5e8adf44a714c7086657b87e.tar.gz
netfilter: nf_conntrack: fix BUG_ON while removing nf_conntrack with netns
canqun zhang reported that we're hitting BUG_ON in the nf_conntrack_destroy path when calling kfree_skb while rmmod'ing the nf_conntrack module. Currently, the nf_ct_destroy hook is being set to NULL in the destroy path of conntrack.init_net. However, this is a problem since init_net may be destroyed before any other existing netns (we cannot assume any specific ordering while releasing existing netns according to what I read in recent emails). Thanks to Gao feng for initial patch to address this issue. Reported-by: canqun zhang <canqunzhang@gmail.com> Acked-by: Gao feng <gaofeng@cn.fujitsu.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include')
-rw-r--r--include/net/netfilter/nf_conntrack_core.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/net/netfilter/nf_conntrack_core.h b/include/net/netfilter/nf_conntrack_core.h
index d8f5b9f5216..e98aeb3da03 100644
--- a/include/net/netfilter/nf_conntrack_core.h
+++ b/include/net/netfilter/nf_conntrack_core.h
@@ -31,6 +31,8 @@ extern void nf_conntrack_cleanup(struct net *net);
extern int nf_conntrack_proto_init(struct net *net);
extern void nf_conntrack_proto_fini(struct net *net);
+extern void nf_conntrack_cleanup_end(void);
+
extern bool
nf_ct_get_tuple(const struct sk_buff *skb,
unsigned int nhoff,