From 120480d15b764d03d5d36fb68735a1975ceb3454 Mon Sep 17 00:00:00 2001
From: Haidong Ji <ji@haidongji.com>
Date: Sun, 20 Feb 2022 21:46:37 -0600
Subject: [PATCH] MDEV-27394 added memset to zero out addr.un.sun_path string

If this char[] is not zeroed out, inaccurate log message described in
MDEV-27394 will show up.
---
 sql/mysqld.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sql/mysqld.cc b/sql/mysqld.cc
index d6d0885093d..b6748170942 100644
--- a/sql/mysqld.cc
+++ b/sql/mysqld.cc
@@ -2474,6 +2474,7 @@ static void use_systemd_activated_sockets()
         addr.un.sun_path[0] = '@';
       sql_print_information("Using systemd activated unix socket %s%s",
                             addr.un.sun_path, sock.is_extra_port ? " (extra)" : "");
+      memset(addr.un.sun_path, 0, sizeof(addr.un.sun_path));
     }
     else
     {