diff --git a/src/mnode/src/mnodeShow.c b/src/mnode/src/mnodeShow.c
index e3d5b41be317272501bf84607f41adb50c43fbd6..1d85a8cacd92cc2b9f33c36828308edf764d4aef 100644
--- a/src/mnode/src/mnodeShow.c
+++ b/src/mnode/src/mnodeShow.c
@@ -236,7 +236,7 @@ static int32_t mnodeProcessHeartBeatMsg(SMnodeMsg *pMsg) {
   }
 
   SCMHeartBeatMsg *pHBMsg = pMsg->rpcMsg.pCont;
-  SRpcConnInfo connInfo;
+  SRpcConnInfo connInfo = {0};
   rpcGetConnInfo(pMsg->rpcMsg.handle, &connInfo);
     
   int32_t connId = htonl(pHBMsg->connId);
@@ -284,7 +284,7 @@ static int32_t mnodeProcessConnectMsg(SMnodeMsg *pMsg) {
   SCMConnectRsp *pConnectRsp = NULL;
   int32_t code = TSDB_CODE_SUCCESS;
 
-  SRpcConnInfo connInfo;
+  SRpcConnInfo connInfo = {0};
   if (rpcGetConnInfo(pMsg->rpcMsg.handle, &connInfo) != 0) {
     mError("thandle:%p is already released while process connect msg", pMsg->rpcMsg.handle);
     code = TSDB_CODE_MND_INVALID_CONNECTION;
diff --git a/src/mnode/src/mnodeUser.c b/src/mnode/src/mnodeUser.c
index 84f5d6aa58403ca887c9a6be6d52fad5ad63be1d..8c783eebaf64fe377b9756e26196573c8fdfcaca 100644
--- a/src/mnode/src/mnodeUser.c
+++ b/src/mnode/src/mnodeUser.c
@@ -358,7 +358,7 @@ static int32_t mnodeRetrieveUsers(SShowObj *pShow, char *data, int32_t rows, voi
 }
 
 SUserObj *mnodeGetUserFromConn(void *pConn) {
-  SRpcConnInfo connInfo;
+  SRpcConnInfo connInfo = {0};
   if (rpcGetConnInfo(pConn, &connInfo) == 0) {
     return mnodeGetUser(connInfo.user);
   } else {