From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
To: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
hpa@zytor.com, dave.hansen@linux.intel.com, luto@kernel.org,
peterz@infradead.org
Cc: x86@kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Subject: [PATCH 0/2] Fix couple of issues with LDT remap for PTI
Date: Tue, 23 Oct 2018 19:31:55 +0300 [thread overview]
Message-ID: <20181023163157.41441-1-kirill.shutemov@linux.intel.com> (raw)
The patchset fixes issues with LDT remap for PTI:
- Layout collision due to KASLR with 5-level paging;
- Information leak via Meltdown-like attack;
Please review and consider applying.
Kirill A. Shutemov (2):
x86/mm: Move LDT remap out of KASLR region on 5-level paging
x86/ldt: Unmap PTEs for the slow before freeing LDT
Documentation/x86/x86_64/mm.txt | 8 ++--
arch/x86/include/asm/page_64_types.h | 12 ++---
arch/x86/include/asm/pgtable_64_types.h | 4 +-
arch/x86/kernel/ldt.c | 59 ++++++++++++++++---------
arch/x86/xen/mmu_pv.c | 6 +--
5 files changed, 53 insertions(+), 36 deletions(-)
--
2.19.1
next reply other threads:[~2018-10-23 16:32 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-23 16:31 Kirill A. Shutemov [this message]
2018-10-23 16:31 ` [PATCH 1/2] x86/mm: Move LDT remap out of KASLR region on 5-level paging Kirill A. Shutemov
2018-10-24 11:54 ` Matthew Wilcox
2018-10-24 12:44 ` Kirill A. Shutemov
2018-10-23 16:31 ` [PATCH 2/2] x86/ldt: Unmap PTEs for the slow before freeing LDT Kirill A. Shutemov
2018-10-24 11:12 ` Christoph Hellwig
2018-10-24 18:49 ` Andy Lutomirski
2018-10-25 7:26 ` Kirill A. Shutemov
2018-10-24 19:39 ` H. Peter Anvin
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