1 files changed, 7 insertions, 3 deletions

diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 94d683a61cba..fd54c5f8a255 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1466,9 +1466,13 @@ struct sock *tcp_v4_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
                 inet_csk(newsk)->icsk_ext_hdr_len = inet_opt->opt.optlen;
         newinet->inet_id = newtp->write_seq ^ jiffies;
 
-        if (!dst && (dst = inet_csk_route_child_sock(sk, newsk, req)) == NULL)
-                goto put_and_exit;
-
+        if (!dst) {
+                dst = inet_csk_route_child_sock(sk, newsk, req);
+                if (!dst)
+                        goto put_and_exit;
+        } else {
+                /* syncookie case : see end of cookie_v4_check() */
+        }
         sk_setup_caps(newsk, dst);
 
         tcp_mtup_init(newsk);