spin_lock_bh(&nf_conntrack_lock);
+ /* We have to check the DYING flag inside the lock to prevent
+ a race against nf_ct_get_next_corpse() possibly called from
+ user context, else we insert an already 'dead' hash, blocking
+ further use of that particular connection -JM */
+
+ if (unlikely(nf_ct_is_dying(ct))) {
+ spin_unlock_bh(&nf_conntrack_lock);
+ return NF_ACCEPT;
+ }
+
/* See if there's one in the list already, including reverse:
NAT could have grabbed it without realizing, since we're
not in the hash. If there is, we lost race. */