diff --git a/source/dnode/vnode/src/meta/metaQuery.c b/source/dnode/vnode/src/meta/metaQuery.c
index 3f6d17a5a7..14207e7fb3 100644
--- a/source/dnode/vnode/src/meta/metaQuery.c
+++ b/source/dnode/vnode/src/meta/metaQuery.c
@@ -62,7 +62,10 @@ int metaGetTableEntryByVersion(SMetaReader *pReader, int64_t version, tb_uid_t u
   tDecoderInit(&pReader->coder, pReader->pBuf, pReader->szBuf);
 
   code = metaDecodeEntry(&pReader->coder, &pReader->me);
-  if (code) return code;
+  if (code) {
+    tDecoderClear(&pReader->coder);
+    return code;
+  }
   // taosMemoryFreeClear(pReader->me.colCmpr.pColCmpr);
 
   return 0;
@@ -393,6 +396,7 @@ _query:
   tDecoderInit(&dc, pData, nData);
   int32_t code = metaDecodeEntry(&dc, &me);
   if (code) {
+    tDecoderClear(&dc);
     goto _err;
   }
   if (me.type == TSDB_SUPER_TABLE) {
@@ -1277,7 +1281,11 @@ int32_t metaFilterTableIds(void *pVnode, SMetaFltParam *arg, SArray *pUids) {
 
   tDecoderInit(&dc, pData, nData);
 
-  TAOS_CHECK_GOTO(metaDecodeEntry(&dc, &oStbEntry), NULL, END);
+  code = metaDecodeEntry(&dc, &oStbEntry);
+  if (code) {
+    tDecoderClear(&dc);
+    goto END;
+  }
 
   if (oStbEntry.stbEntry.schemaTag.pSchema == NULL || oStbEntry.stbEntry.schemaTag.pSchema == NULL) {
     TAOS_CHECK_GOTO(TSDB_CODE_INVALID_PARA, NULL, END);
diff --git a/source/dnode/vnode/src/meta/metaSnapshot.c b/source/dnode/vnode/src/meta/metaSnapshot.c
index ecd5feeb10..0936d8f092 100644
--- a/source/dnode/vnode/src/meta/metaSnapshot.c
+++ b/source/dnode/vnode/src/meta/metaSnapshot.c
@@ -605,6 +605,7 @@ int32_t getTableInfoFromSnapshot(SSnapContext* ctx, void** pBuf, int32_t* contLe
   tDecoderInit(&dc, pVal, vLen);
   ret = metaDecodeEntry(&dc, &me);
   if (ret < 0) {
+    tDecoderClear(&dc);
     ret = TAOS_GET_TERRNO(ret);
     goto END;
   }
diff --git a/source/dnode/vnode/src/meta/metaTable.c b/source/dnode/vnode/src/meta/metaTable.c
index d489535c02..8814e87140 100644
--- a/source/dnode/vnode/src/meta/metaTable.c
+++ b/source/dnode/vnode/src/meta/metaTable.c
@@ -565,6 +565,7 @@ int metaAlterSTable(SMeta *pMeta, int64_t version, SVCreateStbReq *pReq) {
   if (ret < 0) {
     metaError("vgId:%d, failed to decode stb:%s uid:%" PRId64 " since %s", TD_VID(pMeta->pVnode), pReq->name,
               pReq->suid, tstrerror(ret));
+    tDecoderClear(&dc);
     tdbTbcClose(pTbDbc);
     tdbTbcClose(pUidIdxc);
     return terrno;
@@ -1504,6 +1505,7 @@ static int metaDropTableByUid(SMeta *pMeta, tb_uid_t uid, int *type, tb_uid_t *p
         tDecoderInit(&tdc, tData, tLen);
         int32_t ret = metaDecodeEntry(&tdc, &stbEntry);
         if (ret < 0) {
+          tDecoderClear(&tdc);
           metaError("vgId:%d, failed to decode child table:%s uid:%" PRId64 " since %s", TD_VID(pMeta->pVnode), e.name,
                     e.ctbEntry.suid, tstrerror(ret));
           return ret;
@@ -2399,6 +2401,7 @@ static int metaAddTagIndex(SMeta *pMeta, int64_t version, SVAlterTbReq *pAlterTb
   tDecoderInit(&dc, pVal, nVal);
   ret = metaDecodeEntry(&dc, &stbEntry);
   if (ret < 0) {
+    tDecoderClear(&dc);
     goto _err;
   }
 
@@ -2540,6 +2543,7 @@ static int metaDropTagIndex(SMeta *pMeta, int64_t version, SVAlterTbReq *pAlterT
   tDecoderInit(&dc, pVal, nVal);
   ret = metaDecodeEntry(&dc, &stbEntry);
   if (ret < 0) {
+    tDecoderClear(&dc);
     goto _err;
   }