diff options
Diffstat (limited to 'net/netfilter/core.c')
| -rw-r--r-- | net/netfilter/core.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/net/netfilter/core.c b/net/netfilter/core.c index 291b8c6862f1..ad24d0c005e2 100644 --- a/net/netfilter/core.c +++ b/net/netfilter/core.c @@ -248,9 +248,12 @@ void nf_ct_attach(struct sk_buff *new, struct sk_buff *skb) { void (*attach)(struct sk_buff *, struct sk_buff *); - if (skb->nfct && (attach = ip_ct_attach) != NULL) { - mb(); /* Just to be sure: must be read before executing this */ - attach(new, skb); + if (skb->nfct) { + rcu_read_lock(); + attach = rcu_dereference(ip_ct_attach); + if (attach) + attach(new, skb); + rcu_read_unlock(); } } EXPORT_SYMBOL(nf_ct_attach); |