From 5f71925aa42ca3c5665d66ec5ada87494ad0a885 Mon Sep 17 00:00:00 2001
From: Andreas Kling <kling@serenityos.org>
Date: Wed, 12 Jan 2022 14:49:44 +0100
Subject: [PATCH] Kernel: Actually clear page slots in Region::clear_to_zero()

We were copying the RefPtr<PhysicalPage> and zeroing the copy instead
of zeroing the slot itself.
---
 Kernel/Memory/Region.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Kernel/Memory/Region.cpp b/Kernel/Memory/Region.cpp
index 76e31d7406..e4254c7184 100644
--- a/Kernel/Memory/Region.cpp
+++ b/Kernel/Memory/Region.cpp
@@ -306,7 +306,7 @@ void Region::clear_to_zero()
     VERIFY(vmobject().is_anonymous());
     SpinlockLocker locker(vmobject().m_lock);
     for (auto i = 0u; i < page_count(); ++i) {
-        auto page = physical_page_slot(i);
+        auto& page = physical_page_slot(i);
         VERIFY(page);
         if (page->is_shared_zero_page())
             continue;