From b4ab4d1a20ec5ae95e5fc2947d31a75015083651 Mon Sep 17 00:00:00 2001
From: wangmm0220 <wangmm0220@gmail.com>
Date: Thu, 2 Sep 2021 13:47:09 +0800
Subject: [PATCH] [TD-5992] add json check

---
 src/client/src/tscSystem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/client/src/tscSystem.c b/src/client/src/tscSystem.c
index f23ec1548c..f65e845e49 100644
--- a/src/client/src/tscSystem.c
+++ b/src/client/src/tscSystem.c
@@ -446,7 +446,7 @@ static int taos_set_config_imp(const char *config){
   }
   taosInitGlobalCfg();
   cJSON *root = cJSON_Parse(config);
-  if (root == NULL) {
+  if (root == NULL || !cJSON_IsObject(root) || cJSON_GetArraySize(root) == 0) {
     return -1;
   }
 
-- 
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