Catch of OOM situation.

sql/sql_base.cc

@@ -6426,6 +6426,9 @@ find_field_in_natural_join(THD *thd, TABLE_LIST *table_ref, const char *name,
       column reference. See create_view_field() for details.
     */
     item= nj_col->create_item(thd);
+    if (!item)
+      DBUG_RETURN(NULL);
+
     /*
      *ref != NULL means that *ref contains the item that we need to
      replace. If the item was aliased by the user, set the alias to

sql/table.cc

@@ -5252,6 +5252,8 @@ Item *create_view_field(THD *thd, TABLE_LIST *view, Item **field_ref,
   Item *item= new Item_direct_view_ref(&view->view->select_lex.context,
                                        field_ref, view->alias,
                                        name, view);
+  if (!item)
+    return NULL;
   /*
     Force creation of nullable item for the result tmp table for outer joined
     views/derived tables.