From cd0430303b7009d034228668592635be0521b08e Mon Sep 17 00:00:00 2001
From: Vlad Zahorodnii <vlad.zahorodnii@kde.org>
Date: Tue, 26 Apr 2022 15:25:38 +0300
Subject: [PATCH] Fix potential null dereference in LockScreenFilter

input()->findToplevel() may return null.
---
 src/input.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/input.cpp b/src/input.cpp
index 4a35e45eda..e3c8d80fed 100644
--- a/src/input.cpp
+++ b/src/input.cpp
@@ -351,7 +351,7 @@ public:
         }
 
         auto window = input()->findToplevel(event->globalPos());
-        if (window->isClient() && window->isLockScreen()) {
+        if (window && window->isClient() && window->isLockScreen()) {
             workspace()->activateWindow(window);
         }