From ee83a6ca0d93a7985b46fb8e408768657813a458 Mon Sep 17 00:00:00 2001
From: "wuzang.hdp" <wuzang.hdp@alibaba-inc.com>
Date: Fri, 12 Jul 2019 15:09:10 +0800
Subject: [PATCH] fix memory leak on handling COM_CHANGE_USER

---
 server/modules/protocol/MySQL/mariadbbackend/mysql_backend.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/server/modules/protocol/MySQL/mariadbbackend/mysql_backend.c b/server/modules/protocol/MySQL/mariadbbackend/mysql_backend.c
index 534fe9212..55e5a2fd8 100644
--- a/server/modules/protocol/MySQL/mariadbbackend/mysql_backend.c
+++ b/server/modules/protocol/MySQL/mariadbbackend/mysql_backend.c
@@ -858,6 +858,7 @@ gw_read_and_write(DCB *dcb)
         if (auth_change_requested(read_buffer) &&
             handle_auth_change_response(read_buffer, proto, dcb))
         {
+            gwbuf_free(read_buffer);
             return 0;
         }
         else