1 files changed, 3 insertions, 1 deletions

diff --git a/net/dccp/input.c b/net/dccp/input.c
index d28d46bff6ab..85d6c879383d 100644
--- a/net/dccp/input.c
+++ b/net/dccp/input.c
@@ -606,11 +606,13 @@ int dccp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
         if (sk->sk_state == DCCP_LISTEN) {
                 if (dh->dccph_type == DCCP_PKT_REQUEST) {
                         /* It is possible that we process SYN packets from backlog,
-                         * so we need to make sure to disable BH right there.
+                         * so we need to make sure to disable BH and RCU right there.
                          */
+                        rcu_read_lock();
                         local_bh_disable();
                         acceptable = inet_csk(sk)->icsk_af_ops->conn_request(sk, skb) >= 0;
                         local_bh_enable();
+                        rcu_read_unlock();
                         if (!acceptable)
                                 return 1;
                         consume_skb(skb);