From 8bcbc7ef61b9193da5d3deb519211a2406564298 Mon Sep 17 00:00:00 2001
From: compile_success <980965867@qq.com>
Date: Fri, 7 Jun 2024 01:51:34 +0000
Subject: [PATCH] fix fin pack free coredump

---
 src/lstack/core/lstack_lwip.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lstack/core/lstack_lwip.c b/src/lstack/core/lstack_lwip.c
index 667ffd7..628319c 100644
--- a/src/lstack/core/lstack_lwip.c
+++ b/src/lstack/core/lstack_lwip.c
@@ -88,7 +88,7 @@ static void reset_sock_data(struct lwip_sock *sock)
     sock->remain_len = 0;
     sock->already_bind_numa = 0;
 
-    if (sock->recv_lastdata) {
+    if (sock->recv_lastdata && sock->recv_lastdata != (void *)&fin_packet) {
         pbuf_free(sock->recv_lastdata);
     }
     sock->recv_lastdata = NULL;
-- 
2.33.0