From a146f5249f4a4284c7605c4a632ce0bf7a5d3358 Mon Sep 17 00:00:00 2001
From: dapan1121 <wpan@taosdata.com>
Date: Sun, 22 May 2022 19:41:33 +0800
Subject: [PATCH] fix double free issue

---
 source/client/src/clientHb.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/source/client/src/clientHb.c b/source/client/src/clientHb.c
index b068e13b7d..d01ec501ba 100644
--- a/source/client/src/clientHb.c
+++ b/source/client/src/clientHb.c
@@ -310,6 +310,8 @@ int32_t hbBuildQueryDesc(SQueryHbReqBasic *hbBasic, STscObj *pObj) {
         taosArrayDestroy(desc.subDesc);
         desc.subDesc = NULL;
       }
+    } else {
+      desc.subDesc = NULL;
     }
 
     releaseRequest(*rid);
-- 
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