diff options
| -rw-r--r-- | net/netfilter/nf_conntrack_core.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c index e0e9c9a0f5ba..2d46225501c1 100644 --- a/net/netfilter/nf_conntrack_core.c +++ b/net/netfilter/nf_conntrack_core.c @@ -880,6 +880,7 @@ static noinline int early_drop(struct net *net, unsigned int _hash) struct hlist_nulls_head *ct_hash; unsigned hash, sequence, drops; + rcu_read_lock(); do { sequence = read_seqcount_begin(&nf_conntrack_generation); hash = scale_hash(_hash++); @@ -887,6 +888,8 @@ static noinline int early_drop(struct net *net, unsigned int _hash) } while (read_seqcount_retry(&nf_conntrack_generation, sequence)); drops = early_drop_list(net, &ct_hash[hash]); + rcu_read_unlock(); + if (drops) { NF_CT_STAT_ADD_ATOMIC(net, early_drop, drops); return true; |