diff --git a/0022-notify-app-that-sock-state-changes-to-CLOSE_WAIT.patch b/0022-notify-app-that-sock-state-changes-to-CLOSE_WAIT.patch
new file mode 100644
index 0000000000000000000000000000000000000000..be4b0e78ce9ce06a77c2cc6eef7e9b9266e533b9
--- /dev/null
+++ b/0022-notify-app-that-sock-state-changes-to-CLOSE_WAIT.patch
@@ -0,0 +1,56 @@
+From 05159c41efdc2f07ddbe3520330faf2675baa3d6 Mon Sep 17 00:00:00 2001
+From: jiangheng <jiangheng12@huawei.com>
+Date: Tue, 15 Mar 2022 20:10:07 +0800
+Subject: [PATCH] notify app that sock changes to CLOSE_WAAIT
+
+---
+ src/core/tcp_in.c | 12 ++++++++++++
+ 1 file changed, 12 insertions(+)
+
+diff --git a/src/core/tcp_in.c b/src/core/tcp_in.c
+index 1652b86..0d3a2f1 100644
+--- a/src/core/tcp_in.c
++++ b/src/core/tcp_in.c
+@@ -58,6 +58,9 @@
+ #if LWIP_ND6_TCP_REACHABILITY_HINTS
+ #include "lwip/nd6.h"
+ #endif /* LWIP_ND6_TCP_REACHABILITY_HINTS */
++#if USE_LIBOS
++#include "lwip/api.h"
++#endif
+ 
+ #include <string.h>
+ 
+@@ -1032,6 +1035,9 @@ tcp_process(struct tcp_pcb *pcb)
+           if (recv_flags & TF_GOT_FIN) {
+             tcp_ack_now(pcb);
+             pcb->state = CLOSE_WAIT;
++#if USE_LIBOS
++            API_EVENT(((struct netconn *)pcb->callback_arg), NETCONN_EVT_ERROR, 0);
++#endif
+           }
+         } else {
+           /* incorrect ACK number, send RST */
+@@ -1050,6 +1056,9 @@ tcp_process(struct tcp_pcb *pcb)
+       if (recv_flags & TF_GOT_FIN) { /* passive close */
+         tcp_ack_now(pcb);
+         pcb->state = CLOSE_WAIT;
++#if USE_LIBOS
++        API_EVENT(((struct netconn *)pcb->callback_arg), NETCONN_EVT_ERROR, 0);
++#endif
+       }
+       break;
+     case FIN_WAIT_1:
+@@ -1676,6 +1685,9 @@ tcp_receive(struct tcp_pcb *pcb)
+             recv_flags |= TF_GOT_FIN;
+             if (pcb->state == ESTABLISHED) { /* force passive close or we can move to active close */
+               pcb->state = CLOSE_WAIT;
++#if USE_LIBOS
++              API_EVENT(((struct netconn *)pcb->callback_arg), NETCONN_EVT_ERROR, 0);
++#endif
+             }
+           }
+ 
+-- 
+1.8.3.1
+
diff --git a/lwip.spec b/lwip.spec
index 352e0b4843c8ce8cec9ab90a0d7714e391133f85..938d538a1382bf7ee8cdf4b9aaf379d86921f9dc 100644
--- a/lwip.spec
+++ b/lwip.spec
@@ -4,7 +4,7 @@
 Summary: lwip is a small independent implementation of the TCP/IP protocol suite
 Name:    lwip
 Version: 2.1.3
-Release: 8
+Release: 9
 License: BSD
 URL:     http://savannah.nongnu.org/projects/lwip/
 Source0: http://download.savannah.nongnu.org/releases/lwip/%{name}-%{version}.tar.gz
@@ -30,6 +30,7 @@ Patch9017:  0018-exec-gazelle_init_sock-before-read-event.patch
 Patch9018:  0019-gazelle-reduce-copy-in-send.patch
 Patch9019:  0020-remove-chose_dlsym_handle-function-set-handle-to-RTL.patch
 Patch9020:  0021-refactor-event-if-ring-is-full-the-node-is-added-to-.patch
+Patch9021:  0022-notify-app-that-sock-state-changes-to-CLOSE_WAIT.patch
 
 BuildRequires: gcc-c++ dos2unix dpdk-devel
 
@@ -58,6 +59,9 @@ cd %{_builddir}/%{name}-%{version}/src
 %{_libdir}/liblwip.a
 
 %changelog
+* Tue Mar 15 2022 jiangheng<jiangheng12@huawei.com> - 2.1.3-9
+- notify app that sock state changes to CLOSE_WAIT
+
 * Tue Mar 15 2022 jiangheng<jiangheng12@huawei.com> - 2.1.3-8
 - refactor event,if ring is full, node is added to list