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Date: Wed, 24 Jan 2018 15:47:11 +0100
From: Jiri Slaby <jslaby@...e.cz>
To: "Williams, Dan J" <dan.j.williams@...el.com>,
"tglx@...utronix.de" <tglx@...utronix.de>
Cc: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"torvalds@...ux-foundation.org" <torvalds@...ux-foundation.org>,
"alan@...ux.intel.com" <alan@...ux.intel.com>,
"viro@...iv.linux.org.uk" <viro@...iv.linux.org.uk>,
"Reshetova, Elena" <elena.reshetova@...el.com>,
"johannes@...solutions.net" <johannes@...solutions.net>,
"will.deacon@....com" <will.deacon@....com>,
"luto@...nel.org" <luto@...nel.org>,
"kernel-hardening@...ts.openwall.com" <kernel-hardening@...ts.openwall.com>,
"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
"davem@...emloft.net" <davem@...emloft.net>,
"linux-arch@...r.kernel.org" <linux-arch@...r.kernel.org>
Subject: Re: [GIT PULL] spectre variant1 mitigations for 4.16
On 01/20/2018, 07:36 PM, Williams, Dan J wrote:
> Dan Williams (9):
> asm/nospec, array_ptr: sanitize speculative array de-references
> x86: implement array_ptr_mask()
> x86: introduce __uaccess_begin_nospec and ifence
> x86, __get_user: use __uaccess_begin_nospec
> x86, get_user: use pointer masking to limit speculation
> x86: narrow out of bounds syscalls to sys_read under speculation
> vfs, fdtable: prevent bounds-check bypass via speculative execution
> kvm, x86: update spectre-v1 mitigation
> nl80211: sanitize array index in parse_txq_params
>
> Mark Rutland (1):
> Documentation: document array_ptr
>
> Documentation/speculation.txt | 143 ++++++++++++++++++++++++++++++++++++++
> arch/x86/entry/entry_64.S | 2 +
> arch/x86/include/asm/barrier.h | 28 ++++++++
> arch/x86/include/asm/msr.h | 3 +-
> arch/x86/include/asm/smap.h | 24 +++++++
> arch/x86/include/asm/uaccess.h | 15 +++-
> arch/x86/include/asm/uaccess_32.h | 6 +-
> arch/x86/include/asm/uaccess_64.h | 12 ++--
> arch/x86/kvm/vmx.c | 19 ++---
> arch/x86/lib/getuser.S | 5 ++
> arch/x86/lib/usercopy_32.c | 8 +--
> include/linux/fdtable.h | 7 +-
> include/linux/nospec.h | 65 +++++++++++++++++
> net/wireless/nl80211.c | 10 ++-
Could you update also cpu_show_spectre_v1?
thanks,
--
js
suse labs
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