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2023-12-11 1f93a7dfd1f8d5ff7a5c53246c7534fe2332d6f4

 kernel/arch/arm/mm/fault-armv.c
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@@ -1,12 +1,9 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  *  linux/arch/arm/mm/fault-armv.c
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  *
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  *  Copyright (C) 1995  Linus Torvalds
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  *  Modifications for ARM processor (c) 1995-2002 Russell King
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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  */
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 #include <linux/sched.h>
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 #include <linux/kernel.h>
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@@ -20,7 +17,6 @@
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 #include <asm/bugs.h>
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 #include <asm/cacheflush.h>
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 #include <asm/cachetype.h>
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-#include <asm/pgtable.h>
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 #include <asm/tlbflush.h>
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 #include "mm.h"
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@@ -94,6 +90,7 @@
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 {
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 	spinlock_t *ptl;
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 	pgd_t *pgd;
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+	p4d_t *p4d;
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 	pud_t *pud;
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 	pmd_t *pmd;
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 	pte_t *pte;
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@@ -103,7 +100,11 @@
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 	if (pgd_none_or_clear_bad(pgd))
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 		return 0;
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-	pud = pud_offset(pgd, address);
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+	p4d = p4d_offset(pgd, address);
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+	if (p4d_none_or_clear_bad(p4d))
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+		return 0;
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+
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+	pud = pud_offset(p4d, address);
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 	if (pud_none_or_clear_bad(pud))
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 		return 0;
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