diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2013-01-10 16:12:01 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-02-03 18:27:08 -0600 |
| commit | db091405c3222a00987d546f8758cb33ad9649c7 (patch) | |
| tree | 7fbc848177876dfb1023bb67d3af11569792adaf /include/net | |
| parent | 99740d8bf1a78bcfd85072d2396847488a565b68 (diff) | |
netfilter: nf_conntrack: fix BUG_ON while removing nf_conntrack with netns
commit 1e47ee8367babe6a5e8adf44a714c7086657b87e upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/netfilter/nf_conntrack_core.h | 2 |
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, |