From fd14a06a3d28ebe27119a4333417a3034150bfff Mon Sep 17 00:00:00 2001
From: eason <liyansheng@rt-thread.com>
Date: Mon, 22 Feb 2021 09:39:47 +0800
Subject: [PATCH] Correct potential memory access bug.

---
 components/net/sal_socket/socket/net_sockets.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/components/net/sal_socket/socket/net_sockets.c b/components/net/sal_socket/socket/net_sockets.c
index 8b2e3fe2fd..50f1446b0b 100644
--- a/components/net/sal_socket/socket/net_sockets.c
+++ b/components/net/sal_socket/socket/net_sockets.c
@@ -236,10 +236,10 @@ int socket(int domain, int type, int protocol)
     }
     else
     {
+        rt_free(d->fnode);
         /* release fd */
         fd_release(fd);
         rt_set_errno(-ENOMEM);
-        rt_free(d->fnode);
         return -1;
     }
 
@@ -283,9 +283,9 @@ int closesocket(int s)
         error = -1;
     }
 
+    rt_free(d->fnode);
     /* socket has been closed, delete it from file system fd */
     fd_release(s);
-    rt_free(d->fnode);
 
     return error;
 }
-- 
Gitee