From 9b84fb3452888d3c8ce4f6000225772483f5b199 Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Wed, 4 Nov 2020 08:35:53 +0100
Subject: [locationinfo] ical: Fix undefined index access

---
 modules-available/locationinfo/inc/icalparser.inc.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/modules-available/locationinfo/inc/icalparser.inc.php b/modules-available/locationinfo/inc/icalparser.inc.php
index 6d41404c..15cd95c6 100644
--- a/modules-available/locationinfo/inc/icalparser.inc.php
+++ b/modules-available/locationinfo/inc/icalparser.inc.php
@@ -778,7 +778,8 @@ class ICalParser
 	 */
 	protected function doesEventStartOutsideWindow(array $event)
 	{
-		return !$this->isValidDate($event['DTSTART']) || $this->isOutOfRange($event['DTSTART'], $this->windowMinTimestamp, $this->windowMaxTimestamp);
+		return !isset($event['DTSTART']) || !$this->isValidDate($event['DTSTART'])
+			|| $this->isOutOfRange($event['DTSTART'], $this->windowMinTimestamp, $this->windowMaxTimestamp);
 	}
 
 	/**
-- 
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