Merge adventure.(none):/home/thek/Development/cpp/bug33275/my50-bug33275

into  adventure.(none):/home/thek/Development/cpp/bug33275/my51-bug33275

mysql-test/t/grant.test

@@ -1266,6 +1266,12 @@ DROP DATABASE db27878;
 use test;
 DROP TABLE t1;
 
+--echo #
+--echo #  Bug#33275 Server crash when creating temporary table mysql.user
+--echo #
+CREATE TEMPORARY TABLE mysql.user (id INT);
+FLUSH PRIVILEGES;
+DROP TABLE mysql.user;
 #
 # Bug #33201 Crash occurs when granting update privilege on one column of a view
 #

sql/sql_acl.cc

@@ -691,6 +691,8 @@ my_bool acl_reload(THD *thd)
   tables[0].next_local= tables[0].next_global= tables+1;
   tables[1].next_local= tables[1].next_global= tables+2;
   tables[0].lock_type=tables[1].lock_type=tables[2].lock_type=TL_READ;
+  tables[0].skip_temporary= tables[1].skip_temporary=
+    tables[2].skip_temporary= TRUE;
 
   if (simple_open_n_lock_tables(thd, tables))
   {
@@ -3773,7 +3775,8 @@ my_bool grant_reload(THD *thd)
   tables[0].db= tables[1].db= (char *) "mysql";
   tables[0].next_local= tables[0].next_global= tables+1;
   tables[0].lock_type= tables[1].lock_type= TL_READ;
-
+  tables[0].skip_temporary= tables[1].skip_temporary=
+    tables[2].skip_temporary= TRUE;
   /*
     To avoid deadlocks we should obtain table locks before
     obtaining LOCK_grant rwlock.