From 2e9b55f763441b1879c4d9980d25f73a43949115 Mon Sep 17 00:00:00 2001
From: Monty <monty@mariadb.org>
Date: Sat, 1 Jul 2017 12:00:02 +0300
Subject: MDEV-13226 Server crashes when tmpdir runs out of space

There was a missing test in CTE handling if creating a temporary table
failed (in this case as a result of out of space). This caused a table
handler to be used even if it was not allocated.
---
 sql/sql_select.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'sql')

diff --git a/sql/sql_select.cc b/sql/sql_select.cc
index 540271bc961..2c7ccbf3e2b 100644
--- a/sql/sql_select.cc
+++ b/sql/sql_select.cc
@@ -26304,7 +26304,8 @@ AGGR_OP::put_record(bool end_of_records)
 {
   // Lasy tmp table creation/initialization
   if (!join_tab->table->file->inited)
-    prepare_tmp_table();
+    if (prepare_tmp_table())
+      return NESTED_LOOP_ERROR;
   enum_nested_loop_state rc= (*write_func)(join_tab->join, join_tab,
                                            end_of_records);
   return rc;
-- 
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