From 3a66b0a950b3c259841bf85d835d84c754d9d6dc Mon Sep 17 00:00:00 2001
From: Johannes Meyer <johannes.meyer@icinga.com>
Date: Mon, 2 Mar 2020 08:39:46 +0100
Subject: [PATCH] FilterExpression: Pass used delimiter to `preg_quote`

fixes #4090
---
 library/Icinga/Data/Filter/FilterExpression.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/library/Icinga/Data/Filter/FilterExpression.php b/library/Icinga/Data/Filter/FilterExpression.php
index 87cd73392..743c8cb4b 100644
--- a/library/Icinga/Data/Filter/FilterExpression.php
+++ b/library/Icinga/Data/Filter/FilterExpression.php
@@ -192,7 +192,7 @@ class FilterExpression extends Filter
 
         $parts = array();
         foreach (preg_split('~\*~', $expression) as $part) {
-            $parts[] = preg_quote($part);
+            $parts[] = preg_quote($part, '/');
         }
         $pattern = '/^' . implode('.*', $parts) . '$/';