From f34013a06eba750b0951f89c15f7c450353feafa Mon Sep 17 00:00:00 2001
From: Shengliang Guan <slguan@taosdata.com>
Date: Thu, 6 Jan 2022 03:40:20 -0800
Subject: [PATCH] fix invalid free

---
 source/dnode/mgmt/impl/src/dndWorker.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/source/dnode/mgmt/impl/src/dndWorker.c b/source/dnode/mgmt/impl/src/dndWorker.c
index b1107fd185..e0db262f89 100644
--- a/source/dnode/mgmt/impl/src/dndWorker.c
+++ b/source/dnode/mgmt/impl/src/dndWorker.c
@@ -101,7 +101,9 @@ int32_t dndWriteMsgToWorker(SDnodeWorker *pWorker, void *pCont, int32_t contLen)
   }
 
   if (taosWriteQitem(pWorker->queue, pMsg) != 0) {
-    taosFreeQitem(pMsg);
+    if (contLen != 0) {
+      taosFreeQitem(pMsg);
+    }
     terrno = TSDB_CODE_OUT_OF_MEMORY;
     return -1;
   }