tcp: fix connection reuse with no listener

Type: fix

Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I674872f68406ac778779a68d3ad991f41765d4e2

diff --git a/src/vnet/tcp/tcp_input.c b/src/vnet/tcp/tcp_input.c
index a86161c..948383b 100644 (file)
--- a/src/vnet/tcp/tcp_input.c
+++ b/src/vnet/tcp/tcp_input.c
@@ -2575,6 +2575,12 @@ tcp46_listen_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
          lc = tcp_lookup_listener (b, tc->c_fib_index, is_ip4);
          /* clean up the old session */
          tcp_connection_del (tc);
+         /* listener was cleaned up */
+         if (!lc)
+           {
+             error = TCP_ERROR_NO_LISTENER;
+             goto done;
+           }
        }
 
       /* Make sure connection wasn't just created */