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Thomas Gleixner b1a6028c23 KVM: SVM: Move spec control call after restore of GS

commit 15e6c22fd8 upstream

svm_vcpu_run() invokes x86_spec_ctrl_restore_host() after VMEXIT, but
before the host GS is restored. x86_spec_ctrl_restore_host() uses 'current'
to determine the host SSBD state of the thread. 'current' is GS based, but
host GS is not yet restored and the access causes a triple fault.

Move the call after the host GS restore.

Fixes: 885f82bfbc x86/process: Allow runtime control of Speculative Store Bypass
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-05-22 18:54:05 +02:00

arch

KVM: SVM: Move spec control call after restore of GS

2018-05-22 18:54:05 +02:00

block

bfq-iosched: ensure to clear bic/bfqq pointers when preparing request

2018-05-01 12:58:19 -07:00

certs

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

crypto

crypto: af_alg - fix possible uninit-value in alg_bind()

2018-05-16 10:10:23 +02:00

Documentation

Documentation/spec_ctrl: Do some minor cleanups

2018-05-22 18:54:04 +02:00

drivers

x86/bugs: Expose /sys/../spec_store_bypass

2018-05-22 18:54:02 +02:00

firmware

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

proc: Use underscores for SSBD in 'status'

2018-05-22 18:54:04 +02:00

include

seccomp: Move speculation migitation control to arch code

2018-05-22 18:54:04 +02:00

init

kmemcheck: stop using GFP_NOTRACK and SLAB_NOTRACK

2018-02-22 15:42:23 +01:00

ipc

ipc/shm: fix use-after-free of shm file via remap_file_pages()

2018-04-24 09:36:23 +02:00

kernel

seccomp: Move speculation migitation control to arch code

2018-05-22 18:54:04 +02:00

lib

radix tree: fix multi-order iteration race

2018-05-22 18:53:58 +02:00

mm: don't allow deferred pages with NEED_PER_CPU_KM

2018-05-22 18:53:58 +02:00

net

netfilter: nf_socket: Fix out of bounds access in nf_sk_lookup_slow_v{4,6}

2018-05-22 18:53:58 +02:00

samples

samples/bpf: Partially fixes the bpf.o build

2018-04-26 11:02:12 +02:00

scripts

kconfig: Fix expr_free() E_NOT leak

2018-04-26 11:02:08 +02:00

security

commoncap: Handle memory allocation failure.

2018-04-29 11:33:16 +02:00

sound

ALSA: control: fix a redundant-copy issue

2018-05-22 18:53:56 +02:00

tools

seccomp: Add filter flag to opt-out of SSB mitigation

2018-05-22 18:54:04 +02:00

usr

initramfs: fix initramfs rebuilds w/ compression after disabling

2017-11-03 07:39:19 -07:00

virt

KVM: arm/arm64: VGIC/ITS: protect kvm_read_guest() calls with SRCU lock

2018-05-22 18:53:57 +02:00

.cocciconfig

scripts: add Linux .cocciconfig for coccinelle

2016-07-22 12:13:39 +02:00

.get_maintainer.ignore

Add hch to .get_maintainer.ignore

2015-08-21 14:30:10 -07:00

.gitattributes

.gitattributes: set git diff driver for C source code files

2016-10-07 18:46:30 -07:00

.gitignore

kbuild: rpm-pkg: keep spec file until make mrproper

2018-02-13 10:19:46 +01:00

.mailmap

.mailmap: Add Maciej W. Rozycki's Imagination e-mail address

2017-11-10 12:16:15 -08:00

COPYING

…

CREDITS

MAINTAINERS: update TPM driver infrastructure changes

2017-11-09 17:58:40 -08:00

Kbuild

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

Kconfig

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

MAINTAINERS

dt-bindings: Document mti,mips-cpc binding

2018-03-15 10:54:35 +01:00

Makefile

Linux 4.14.42

2018-05-19 10:20:27 +02:00

README

README: add a new README file, pointing to the Documentation/

2016-10-24 08:12:35 -02:00

README

Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.