diff --git a/source/dnode/vnode/src/meta/metaQuery.c b/source/dnode/vnode/src/meta/metaQuery.c
index 27a4179172..576324d7c2 100644
--- a/source/dnode/vnode/src/meta/metaQuery.c
+++ b/source/dnode/vnode/src/meta/metaQuery.c
@@ -1441,6 +1441,9 @@ int32_t metaGetTableTagsByUids(void *pVnode, int64_t suid, SArray *uidList) {
 
 int32_t metaGetTableTags(void *pVnode, uint64_t suid, SArray *pUidTagInfo) {
   SMCtbCursor *pCur = metaOpenCtbCursor(pVnode, suid, 1);
+  if (!pCur) {
+    TAOS_RETURN(TSDB_CODE_OUT_OF_MEMORY);
+  }
 
   // If len > 0 means there already have uids, and we only want the
   // tags of the specified tables, of which uid in the uid list. Otherwise, all table tags are retrieved and kept