diff --git a/source/libs/executor/src/groupcacheoperator.c b/source/libs/executor/src/groupcacheoperator.c
index 06706b57ee..45540d528e 100644
--- a/source/libs/executor/src/groupcacheoperator.c
+++ b/source/libs/executor/src/groupcacheoperator.c
@@ -375,6 +375,7 @@ _return:
 
 static int32_t addBlkToDirtyBufList(SGroupCacheOperatorInfo* pGCache, SGcDownstreamCtx* pCtx, SGcBlkCacheInfo* pCache, SGcBlkBufInfo* pBufInfo) {
   if (0 != taosHashPut(pCache->pDirtyBlk, &pBufInfo->basic.blkId, sizeof(pBufInfo->basic.blkId), pBufInfo, sizeof(*pBufInfo))) {
+    freeGcBlkBufInfo(pBufInfo);
     return TSDB_CODE_OUT_OF_MEMORY;
   }
   pBufInfo = taosHashGet(pCache->pDirtyBlk, &pBufInfo->basic.blkId, sizeof(pBufInfo->basic.blkId));
@@ -1241,7 +1242,7 @@ _return:
 
 void freeGcBlkBufInfo(void* ptr) {
   SGcBlkBufInfo* pBlk = (SGcBlkBufInfo*)ptr;
-  taosMemoryFree(pBlk->pBuf);
+  taosMemoryFreeClear(pBlk->pBuf);
 }
 
 static int32_t initGroupCacheBlockCache(SGroupCacheOperatorInfo* pInfo) {