From ae7989ca2059869f81c837509e5ff554f7f63562 Mon Sep 17 00:00:00 2001
From: Sergei Golubchik <serg@mariadb.org>
Date: Tue, 16 Feb 2021 01:11:41 +0100
Subject: [PATCH] galera.galera_gra_log crashes

reset thd->lex->query_tables_own_last,
because open_table() uses it and will try to dereference
whatever garbage it might have
---
 sql/wsrep_schema.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sql/wsrep_schema.cc b/sql/wsrep_schema.cc
index a909fa8aaf6..1054c9e11bc 100644
--- a/sql/wsrep_schema.cc
+++ b/sql/wsrep_schema.cc
@@ -249,6 +249,7 @@ static int open_table(THD* thd,
   tables.init_one_table(schema_name,
                         table_name,
                         NULL, lock_type);
+  thd->lex->query_tables_own_last= 0;
 
   if (!open_n_lock_single_table(thd, &tables, tables.lock_type, flags)) {
     if (thd->is_error()) {