diff --git a/source/dnode/vnode/src/meta/metaOpen.c b/source/dnode/vnode/src/meta/metaOpen.c
index 9a5bea33e3..5351554631 100644
--- a/source/dnode/vnode/src/meta/metaOpen.c
+++ b/source/dnode/vnode/src/meta/metaOpen.c
@@ -138,6 +138,7 @@ static int32_t metaOpenImpl(SVnode *pVnode, SMeta **ppMeta, const char *metaDir,
   int32_t code = 0;
   int32_t lino;
   int32_t offset;
+  int32_t pathLen = 0;
   char    path[TSDB_FILENAME_LEN] = {0};
   char    indexFullPath[128] = {0};
 
@@ -150,14 +151,15 @@ static int32_t metaOpenImpl(SVnode *pVnode, SMeta **ppMeta, const char *metaDir,
     taosRemoveDir(path);
   }
 
-  if ((pMeta = taosMemoryCalloc(1, sizeof(*pMeta) + strlen(path) + 1)) == NULL) {
+  pathLen = strlen(path) + 1;
+  if ((pMeta = taosMemoryCalloc(1, sizeof(*pMeta) + pathLen)) == NULL) {
     TSDB_CHECK_CODE(code = terrno, lino, _exit);
   }
 
   metaInitLock(pMeta);
 
   pMeta->path = (char *)&pMeta[1];
-  strcpy(pMeta->path, path);
+  tstrncpy(pMeta->path, path, pathLen);
   int32_t ret = taosRealPath(pMeta->path, NULL, strlen(path) + 1);
 
   pMeta->pVnode = pVnode;
diff --git a/source/dnode/vnode/src/meta/metaTable.c b/source/dnode/vnode/src/meta/metaTable.c
index bce8bb3e29..c32d4b30b0 100644
--- a/source/dnode/vnode/src/meta/metaTable.c
+++ b/source/dnode/vnode/src/meta/metaTable.c
@@ -1189,7 +1189,7 @@ int metaCreateTable(SMeta *pMeta, int64_t ver, SVCreateTbReq *pReq, STableMetaRs
         (*pMetaRsp)->tableType = TSDB_CHILD_TABLE;
         (*pMetaRsp)->tuid = pReq->uid;
         (*pMetaRsp)->suid = pReq->ctb.suid;
-        strcpy((*pMetaRsp)->tbName, pReq->name);
+        tstrncpy((*pMetaRsp)->tbName, pReq->name, strlen(pReq->name) + 1);
       } else {
         ret = metaUpdateMetaRsp(pReq->uid, pReq->name, &pReq->ntb.schemaRow, *pMetaRsp);
         if (ret < 0) {
@@ -1834,7 +1834,8 @@ static int metaAlterTableColumn(SMeta *pMeta, int64_t version, SVAlterTbReq *pAl
       pSchema->pSchema[entry.ntbEntry.schemaRow.nCols - 1].type = pAlterTbReq->type;
       pSchema->pSchema[entry.ntbEntry.schemaRow.nCols - 1].flags = pAlterTbReq->flags;
       pSchema->pSchema[entry.ntbEntry.schemaRow.nCols - 1].colId = entry.ntbEntry.ncid++;
-      strcpy(pSchema->pSchema[entry.ntbEntry.schemaRow.nCols - 1].name, pAlterTbReq->colName);
+      tstrncpy(pSchema->pSchema[entry.ntbEntry.schemaRow.nCols - 1].name, pAlterTbReq->colName,
+               strlen(pAlterTbReq->colName) + 1);
 
       ++pMeta->pVnode->config.vndStats.numOfNTimeSeries;
       metaTimeSeriesNotifyCheck(pMeta);
@@ -1943,7 +1944,7 @@ static int metaAlterTableColumn(SMeta *pMeta, int64_t version, SVAlterTbReq *pAl
         goto _err;
       }
       pSchema->version++;
-      strcpy(pColumn->name, pAlterTbReq->colNewName);
+      tstrncpy(pColumn->name, pAlterTbReq->colNewName, strlen(pAlterTbReq->colNewName) + 1);
       break;
   }
 
diff --git a/source/dnode/vnode/src/meta/metaTtl.c b/source/dnode/vnode/src/meta/metaTtl.c
index 4077e9fa5d..2b67c27234 100644
--- a/source/dnode/vnode/src/meta/metaTtl.c
+++ b/source/dnode/vnode/src/meta/metaTtl.c
@@ -49,18 +49,20 @@ const char *ttlV1Tbname = "ttlv1.idx";
 int32_t ttlMgrOpen(STtlManger **ppTtlMgr, TDB *pEnv, int8_t rollback, const char *logPrefix, int32_t flushThreshold) {
   int32_t code = TSDB_CODE_SUCCESS;
   int64_t startNs = taosGetTimestampNs();
+  int32_t pathLen = 0;
 
   *ppTtlMgr = NULL;
 
   STtlManger *pTtlMgr = (STtlManger *)tdbOsCalloc(1, sizeof(*pTtlMgr));
   if (pTtlMgr == NULL) TAOS_RETURN(terrno);
 
-  char *logBuffer = (char *)tdbOsCalloc(1, strlen(logPrefix) + 1);
+  pathLen = strlen(logPrefix) + 1;
+  char *logBuffer = (char *)tdbOsCalloc(1, pathLen);
   if (logBuffer == NULL) {
     tdbOsFree(pTtlMgr);
     TAOS_RETURN(terrno);
   }
-  (void)strcpy(logBuffer, logPrefix);
+  tstrncpy(logBuffer, logPrefix, pathLen);
   pTtlMgr->logPrefix = logBuffer;
   pTtlMgr->flushThreshold = flushThreshold;