From c993c7e3dc2c16282e24774df6fdba7ee474683a Mon Sep 17 00:00:00 2001
From: Andreas Kling <kling@serenityos.org>
Date: Sat, 11 Apr 2020 14:33:05 +0200
Subject: [PATCH] AK: String::contains() should say no if needle or haystack is
 null

---
 AK/String.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/AK/String.cpp b/AK/String.cpp
index 76ce98b4b5f..5bd3a98da22 100644
--- a/AK/String.cpp
+++ b/AK/String.cpp
@@ -312,6 +312,8 @@ bool String::matches(const StringView& mask, CaseSensitivity case_sensitivity) c
 
 bool String::contains(const String& needle) const
 {
+    if (is_null() || needle.is_null())
+        return false;
     return strstr(characters(), needle.characters());
 }