From 2a14a9bad039e2f82797f341cd45fa9a717de5b2 Mon Sep 17 00:00:00 2001
From: Timo Kreuzer <timo.kreuzer@reactos.org>
Date: Tue, 9 May 2023 23:23:49 +0300
Subject: [PATCH] FIXME: Erase Stack PTEs before releasing them

---
 ntoskrnl/mm/ARM3/procsup.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ntoskrnl/mm/ARM3/procsup.c b/ntoskrnl/mm/ARM3/procsup.c
index e46919b0b0f..8c38c6c802a 100644
--- a/ntoskrnl/mm/ARM3/procsup.c
+++ b/ntoskrnl/mm/ARM3/procsup.c
@@ -237,6 +237,8 @@ MmDeleteKernelStack(IN PVOID StackBase,
             Pfn1 = MiGetPfnEntry(PageFrameNumber);
             if (Pfn1->u3.e1.PageLocation != ActiveAndValid) __debugbreak();
 
+            PointerPte->u.Long = 0;
+
             /* Now get the page of the page table mapping it */
             PageTableFrameNumber = Pfn1->u4.PteFrame;
             Pfn2 = MiGetPfnEntry(PageTableFrameNumber);