From 9c369d12324016548deebc62b3c50e265dd09baf Mon Sep 17 00:00:00 2001
From: Yuchen Pei <ycp@mariadb.com>
Date: Tue, 13 Aug 2024 13:02:46 +1000
Subject: [PATCH] MDEV-34745 Fix valgrind jump on uninitialised values

---
 sql/sql_class.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sql/sql_class.h b/sql/sql_class.h
index f82ae69599c..b179fe8cea9 100644
--- a/sql/sql_class.h
+++ b/sql/sql_class.h
@@ -3867,7 +3867,7 @@ class THD: public THD_count, /* this must be first */
   ulonglong  tmp_tables_size;
   ulonglong  bytes_sent_old;
   ulonglong  affected_rows;                     /* Number of changed rows */
-  ulonglong  max_tmp_space_used;
+  ulonglong  max_tmp_space_used= 0;
 
   Opt_trace_context opt_trace;
   pthread_t  real_id;                           /* For debugging */
-- 
2.30.9