From 244d024f27a94f1b88d0079b8d9042c98f546f46 Mon Sep 17 00:00:00 2001
From: George Hazan <ghazan@miranda.im>
Date: Sun, 13 Dec 2020 12:15:31 +0300
Subject: Dbx_mdbx: crash fix when deleting sub-contact from a meta

---
 plugins/Dbx_mdbx/src/dbcontacts.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'plugins/Dbx_mdbx/src')

diff --git a/plugins/Dbx_mdbx/src/dbcontacts.cpp b/plugins/Dbx_mdbx/src/dbcontacts.cpp
index 47a23254c4..d650909089 100644
--- a/plugins/Dbx_mdbx/src/dbcontacts.cpp
+++ b/plugins/Dbx_mdbx/src/dbcontacts.cpp
@@ -214,8 +214,9 @@ BOOL CDbxMDBX::MetaRemoveSubHistory(DBCachedContact *ccSub)
 		{
 			MDBX_val key = { &EI->eventId, sizeof(MEVENT) }, data;
 			if (mdbx_get(trnlck, m_dbEvents, &key, &data) == MDBX_SUCCESS) {
-				DBEvent *pEvent = (DBEvent*)data.iov_base;
-				pEvent->dwContactID = ccSub->parentID;
+				DBEvent tmp = *(DBEvent*)data.iov_base;
+				tmp.dwContactID = ccSub->parentID;
+				data.iov_base = &tmp;
 				if (mdbx_put(trnlck, m_dbEvents, &key, &data, MDBX_UPSERT) != MDBX_SUCCESS)
 					return 1;
 			}
-- 
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