Pablo Neira Ayuso 1e47ee8367
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 >
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