From 98ae29ae24e717dc22a7c4fbc2f737aca969188e Mon Sep 17 00:00:00 2001
From: Farhan Karmali <farhan6318@gmail.com>
Date: Mon, 24 Feb 2020 13:47:14 +0530
Subject: [PATCH] MDL-67024 Lib: Check if user->mnethostid is set before using
 it

---
 lib/pagelib.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/pagelib.php b/lib/pagelib.php
index 1447623977d..7e173071f40 100644
--- a/lib/pagelib.php
+++ b/lib/pagelib.php
@@ -1609,7 +1609,8 @@ class moodle_page {
         }
 
         $mnetpeertheme = '';
-        if (isloggedin() and isset($CFG->mnet_localhost_id) and $USER->mnethostid != $CFG->mnet_localhost_id) {
+        $mnetvarsok = isset($CFG->mnet_localhost_id) && isset($USER->mnethostid);
+        if (isloggedin() and $mnetvarsok and $USER->mnethostid != $CFG->mnet_localhost_id) {
             require_once($CFG->dirroot.'/mnet/peer.php');
             $mnetpeer = new mnet_peer();
             $mnetpeer->set_id($USER->mnethostid);