2018-01-15 11:26:15 +00:00
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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2018-01-06 14:13:39 +00:00
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From: Borislav Petkov <bp@suse.de>
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Date: Fri, 3 Nov 2017 11:20:28 +0100
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2018-01-15 11:26:15 +00:00
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Subject: [PATCH] x86/mm: Define _PAGE_TABLE using _KERNPG_TABLE
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2018-01-06 14:13:39 +00:00
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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CVE-2017-5754
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... so that the difference is obvious.
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No functionality change.
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Signed-off-by: Borislav Petkov <bp@suse.de>
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Cc: Linus Torvalds <torvalds@linux-foundation.org>
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Cc: Peter Zijlstra <peterz@infradead.org>
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Cc: Thomas Gleixner <tglx@linutronix.de>
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Link: http://lkml.kernel.org/r/20171103102028.20284-1-bp@alien8.de
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Signed-off-by: Ingo Molnar <mingo@kernel.org>
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(backported from commit c7da092a1f243bfd1bfb4124f538e69e941882da)
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Signed-off-by: Andy Whitcroft <apw@canonical.com>
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Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>
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(cherry picked from commit 8c69b0c03cd24576ac69c36ede00afae76bab464)
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Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
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---
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arch/x86/include/asm/pgtable_types.h | 3 +--
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1 file changed, 1 insertion(+), 2 deletions(-)
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diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h
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index bf9638e1ee42..01f6dc938ccb 100644
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--- a/arch/x86/include/asm/pgtable_types.h
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+++ b/arch/x86/include/asm/pgtable_types.h
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@@ -121,10 +121,9 @@
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#define _PAGE_PROTNONE (_AT(pteval_t, 1) << _PAGE_BIT_PROTNONE)
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-#define _PAGE_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | \
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- _PAGE_ACCESSED | _PAGE_DIRTY)
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#define _KERNPG_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | \
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_PAGE_DIRTY)
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+#define _PAGE_TABLE (_KERNPG_TABLE | _PAGE_USER)
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/*
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* Set of bits not changed in pte_modify. The pte's
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--
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2.14.2
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