From 7902b7aaac10c75769a33e1c0245ffaccd698523 Mon Sep 17 00:00:00 2001
From: Minglei Jin <mljin@taosdata.com>
Date: Tue, 29 Nov 2022 10:46:04 +0800
Subject: [PATCH] fix/tdb: remove UAF preped

---
 source/libs/tdb/inc/tdb.h         | 1 -
 source/libs/tdb/src/db/tdbPager.c | 3 +--
 2 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/source/libs/tdb/inc/tdb.h b/source/libs/tdb/inc/tdb.h
index 5f9de017f0..c728e29641 100644
--- a/source/libs/tdb/inc/tdb.h
+++ b/source/libs/tdb/inc/tdb.h
@@ -89,7 +89,6 @@ struct STxn {
   void     *xArg;
   tdb_fd_t  jfd;
   hashset_t jPageSet;
-  int       preped;
 };
 
 // error code
diff --git a/source/libs/tdb/src/db/tdbPager.c b/source/libs/tdb/src/db/tdbPager.c
index ebad93eb7f..082fec4902 100644
--- a/source/libs/tdb/src/db/tdbPager.c
+++ b/source/libs/tdb/src/db/tdbPager.c
@@ -297,7 +297,7 @@ int tdbPagerBegin(SPager *pPager, TXN *pTxn) {
   }
 
   pTxn->jPageSet = hashset_create();
-  ASSERT(pPager->pActiveTxn->preped == 1);
+
   pPager->pActiveTxn = pTxn;
   // TODO: write the size of the file
   /*
@@ -433,7 +433,6 @@ int tdbPagerPrepareAsyncCommit(SPager *pPager, TXN *pTxn) {
     tdbPCacheRelease(pPager->pCache, pPage, pTxn);
   }
 
-  pTxn->preped = 1;
   /*
   tdbTrace("reset dirty tree: %p", &pPager->rbt);
   tRBTreeCreate(&pPager->rbt, pageCmpFn);
-- 
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