diff options
| -rw-r--r-- | src/vnet/tcp/tcp_input.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/vnet/tcp/tcp_input.c b/src/vnet/tcp/tcp_input.c index 182062f1b42..912b193bf94 100644 --- a/src/vnet/tcp/tcp_input.c +++ b/src/vnet/tcp/tcp_input.c @@ -2386,6 +2386,9 @@ tcp46_rcv_process_inline (vlib_main_t * vm, vlib_node_runtime_t * node, case TCP_STATE_FIN_WAIT_2: if (vnet_buffer (b0)->tcp.data_len) error0 = tcp_segment_rcv (wrk, tc0, b0); + /* Don't accept out of order fins lower */ + if (vnet_buffer (b0)->tcp.seq_end != tc0->rcv_nxt) + goto drop; break; case TCP_STATE_CLOSE_WAIT: case TCP_STATE_CLOSING: |