Thomas Gleixner 67f67244f8 x86/kaslr: Fix the vaddr_end mess ...

commit 1dddd25125 upstream.

vaddr_end for KASLR is only documented in the KASLR code itself and is
adjusted depending on config options. So it's not surprising that a change
of the memory layout causes KASLR to have the wrong vaddr_end. This can map
arbitrary stuff into other areas causing hard to understand problems.

Remove the whole ifdef magic and define the start of the cpu_entry_area to
be the end of the KASLR vaddr range.

Add documentation to that effect.

Fixes: 92a0f81d89 ("x86/cpu_entry_area: Move it out of the fixmap")
Reported-by: Benjamin Gilbert <benjamin.gilbert@coreos.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Benjamin Gilbert <benjamin.gilbert@coreos.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Garnier <thgarnie@google.com>
Cc: Alexander Kuleshov <kuleshovmail@gmail.com>
Link: https://lkml.kernel.org/r/alpine.DEB.2.20.1801041320360.1771@nanos
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-01-10 09:31:16 +01:00

..

ABI

Update MIPS email addresses

2017-11-03 09:02:30 -07:00

accounting

tools: move accounting tool from Documentation

2016-09-23 13:07:15 -06:00

acpi

Merge tag 'gpio-v4.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

2017-07-07 12:40:27 -07:00

admin-guide

x86/pti: Add the pti= cmdline option and documentation

2018-01-02 20:30:56 +01:00

aoe

…

arm

Documentation: arm: Replace use of virt_to_phys with __pa_symbol

2017-07-17 13:43:58 -06:00

arm64

arm64: Expose DC CVAP to userspace

2017-08-09 11:00:35 +01:00

auxdisplay

samples: move auxdisplay example code from Documentation

2016-09-23 11:52:32 -06:00

backlight

…

blackfin

samples: move blackfin gptimers-example from Documentation

2016-10-10 07:12:02 -06:00

block

doc, block, bfq: better describe how to properly configure bfq

2017-08-31 13:55:26 -06:00

blockdev

Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

2017-09-07 21:11:05 -07:00

bus-devices

…

cdrom

cdrom: Make device operations read-only

2017-02-14 08:29:56 -07:00

cgroup-v1

mm, vmpressure: pass-through notification support

2017-07-10 16:32:31 -07:00

cma

…

connector

…

console

…

core-api

doc: Fix RCU's docbook options

2017-10-19 22:26:11 -04:00

cpu-freq

cpufreq: docs: Drop intel-pstate.txt from index.txt

2017-09-28 02:08:43 +02:00

cpuidle

…

cris

…

crypto

KEYS: Add documentation for asymmetric keyring restrictions

2017-07-14 11:01:38 +10:00

dev-tools

docs: disable KASLR when debugging kernel

2017-07-17 14:49:01 -06:00

device-mapper

dm raid: fix incorrect status output at the end of a "recover" process

2017-10-05 16:21:30 -04:00

devicetree

dt-bindings: usb: fix reg-property port-number range

2017-12-14 09:53:09 +01:00

dmaengine

Merge branch 'topic/dmatest' into for-linus

2017-09-06 21:55:10 +05:30

doc-guide

sphinx.rst: Allow Sphinx version 1.6 at the docs

2017-08-26 15:50:27 -06:00

driver-api

PM: docs: Drop an excess character from devices.rst

2017-09-19 22:57:38 +02:00

driver-model

driver core: remove DRIVER_ATTR

2017-09-19 09:20:33 +02:00

early-userspace

Documentation: Fix dead URLs to ftp.kernel.org

2017-03-29 15:46:06 -06:00

EDID

drm: use .hword to represent 16-bit numbers

2017-03-30 10:15:19 +02:00

extcon

extcon: Remove porting compatibility of swich class

2017-04-06 10:55:24 +09:00

fault-injection

fault-inject: add /proc/<pid>/fail-nth

2017-07-14 15:05:13 -07:00

fb

fbcon: remove restriction on margin color

2017-09-04 16:00:49 +02:00

features

docs/features: parisc implements tracehook

2017-08-07 14:18:40 -06:00

filesystems

Merge branch 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs

2017-10-06 08:52:53 -07:00

firmware_class

firmware: revamp firmware documentation

2017-01-11 09:42:59 +01:00

fmc

…

fpga

fpga: Add scatterlist based programming

2017-02-10 15:20:44 +01:00

frv

docs: fix locations of several documents that got moved

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

gpio

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

2017-09-07 13:39:21 -07:00

gpu

Merge tag 'drm-intel-next-2017-08-18' of git://anongit.freedesktop.org/git/drm-intel into drm-next

2017-08-22 10:03:07 +10:00

hid

Documentation: hid: fix path to input bus definitions

2017-03-13 17:15:19 -06:00

hwmon

hwmon: (pmbus/lm25066) Add support for TI LM5066I

2017-08-30 06:31:13 -07:00

i2c

i2c: i801: Add support for Intel Cedar Fork

2017-10-05 14:44:56 +02:00

ia64

selftests: move ia64 tests from Documentation/ia64

2016-09-20 09:58:12 -06:00

ide

…

iio

iio: adc: New driver for Cirrus Logic EP93xx ADC

2017-07-25 19:56:23 +01:00

infiniband

Documentation: Hardware tag matching

2017-08-29 08:30:21 -04:00

input

Documentation:input: fix typo

2017-08-30 15:18:24 -06:00

ioctl

scsi: cxlflash: Introduce host ioctl support

2017-06-26 15:01:11 -04:00

isdn

docs: fix locations of several documents that got moved

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

kbuild

kbuild doc: a bundle of fixes on makefiles.txt

2017-10-24 10:12:00 +09:00

kdump

kexec/kdump: minor Documentation updates for arm64 and Image

2017-07-12 16:26:00 -07:00

kernel-hacking

Merge tag 'docs-4.13' of git://git.lwn.net/linux

2017-07-03 21:13:25 -07:00

laptops

platform/x86: thinkpad_acpi: Fix warning about deprecated hwmon_device_register

2017-08-18 15:57:24 -07:00

leds

Documentaion: leds: leds-lp55xx.txt: Fix typos

2017-03-17 13:06:14 -06:00

lightnvm

lightnvm: physical block device (pblk) target

2017-04-16 10:06:33 -06:00

livepatch

livepatch: allow removal of a disabled patch

2017-03-08 09:38:43 +01:00

locking

Merge branch 'linus' into locking/core, to fix up conflicts

2017-09-04 11:01:18 +02:00

m68k

docs: fix locations of several documents that got moved

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

md

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md

2017-05-03 10:05:38 -07:00

media

media: add qcom_camss.rst to v4l-drivers rst file

2017-09-05 07:28:25 -04:00

memory-devices

…

metag

…

mic

samples: move mic/mpssd example code from Documentation

2016-09-20 12:38:48 -06:00

mips

…

misc-devices

Documentation: misc-devices: Add Documentation for pci-endpoint-test driver

2017-04-28 10:23:19 -05:00

mmc

Merge tag 'mmc-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

2017-05-02 17:34:32 -07:00

mn10300

…

mtd

spi-nor: Add support for Intel SPI serial flash controller

2017-01-03 17:33:36 +00:00

namespaces

…

netlabel

…

networking

doc: Fix typo "8023.ad" in bonding documentation

2017-10-07 23:19:13 +01:00

nfc

…

nios2

…

nvdimm

libnvdimm, btt: update the usage section in Documentation

2016-06-17 16:23:23 -07:00

nvmem

NVMEM documentation fix: A minor typo

2017-08-24 13:31:58 -06:00

parisc

…

PCI

docs: update old references for DocBook from the documentation

2017-05-16 08:44:19 -03:00

pcmcia

tools: move pcmcia crc32hash tool from Documentation

2016-09-23 13:07:27 -06:00

perf

perf: qcom: Add L3 cache PMU driver

2017-04-03 18:53:50 +01:00

phy

…

platform

…

power

Merge branch 'pm-sleep'

2017-09-04 00:06:02 +02:00

powerpc

Merge tag 'powerpc-4.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

2017-07-07 13:55:45 -07:00

pps

drivers/pps: aesthetic tweaks to PPS-related content

2017-09-08 18:26:51 -07:00

process

Documentation: Add Frank Rowand to list of enforcement statement endorsers

2017-11-04 11:52:39 +01:00

pti

…

ptp

selftests: move ptp tests from Documentation/ptp

2016-09-20 09:54:38 -06:00

rapidio

rapidio/documentation/mport_cdev: add missing parameter description

2016-09-01 17:52:02 -07:00

RCU

doc: Set down RCU's scheduling-clock-interrupt needs

2017-08-17 07:31:14 -07:00

s390

docs: add documentation for vfio-ccw

2017-03-31 12:55:11 +02:00

scheduler

sched/deadline: Add documentation about GRUB reclaiming

2017-06-08 10:31:56 +02:00

scsi

scsi: make asynchronous aborts mandatory

2017-04-06 13:07:33 -04:00

security

docs: ReSTify table of contents in core.rst

2017-08-30 15:27:58 -06:00

serial

tty: n_gsm: do not send/receive in ldisc close path

2017-06-03 18:48:52 +09:00

sh

docs-rst: convert sh book to ReST

2017-05-16 08:44:18 -03:00

sound

Merge tag 'sound-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

2017-07-06 10:56:51 -07:00

sparc

Documentation/sparc: Steps for sending break on sunhv console

2017-02-23 08:27:25 -08:00

sphinx

Documentation/sphinx: fix kernel-doc decode for non-utf-8 locale

2017-08-31 13:36:28 -06:00

sphinx-static

docs RTD theme: code-block with line nos - lines and line numbers don't line up.

2017-07-17 13:48:45 -06:00

spi

spi: Document SPI slave controller support

2017-05-26 13:11:00 +01:00

sysctl

Merge tag 'seccomp-v4.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

2017-09-22 16:16:41 -10:00

target

Documentation/target: add an example script to configure an iSCSI target

2017-05-01 22:21:35 -07:00

thermal

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux

2017-05-12 11:58:45 -07:00

timers

rcu: Eliminate NOCBs CPU-state Kconfig options

2017-06-08 18:52:43 -07:00

trace

stm class: Document the stm_ftrace

2017-08-25 17:58:34 +03:00

translations

kokr/memory-barriers.txt: Apply atomic_t.txt change

2017-09-08 10:10:53 -06:00

usb

usb: gadget: add f_uac1 variant based on a new u_audio api

2017-06-19 09:22:47 +03:00

userspace-api

seccomp: Implement SECCOMP_RET_KILL_PROCESS action

2017-08-14 13:46:50 -07:00

virtual

Merge tag 'kvm-arm-for-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm

2017-09-07 18:22:04 +02:00

vm

hmm: heterogeneous memory management documentation

2017-09-08 18:26:45 -07:00

w1

w1: add documentation for w1_ds2438

2017-03-17 15:10:49 +09:00

watchdog

watchdog: Revert "iTCO_wdt: all versions count down twice"

2017-09-09 17:41:24 +02:00

wimax

…

x86

x86/kaslr: Fix the vaddr_end mess

2018-01-10 09:31:16 +01:00

xtensa

of: update ePAPR references to point to Devicetree Specification

2017-06-22 11:22:06 -05:00

.gitignore

Add .pyc files to .gitignore

2016-06-30 13:07:33 -06:00

00-INDEX

Merge tag 'linux-kselftest-4.13-rc1-update' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

2017-07-07 14:04:47 -07:00

atomic_bitops.txt

Documentation/locking/atomic: Add documents for new atomic_t APIs

2017-08-10 12:29:00 +02:00

atomic_t.txt

Documentation/locking/atomic: Finish the document...

2017-08-25 11:06:33 +02:00

bcache.txt

bcache.txt: standardize document format

2017-07-14 13:51:27 -06:00

bt8xxgpio.txt

bt8xxgpio.txt: standardize document format

2017-07-14 13:51:27 -06:00

btmrvl.txt

btmrvl.txt: standardize document format

2017-07-14 13:51:27 -06:00

bus-virt-phys-mapping.txt

bus-virt-phys-mapping.txt: standardize document format

2017-07-14 13:51:28 -06:00

cachetlb.txt

cachetlb.txt: standardize document format

2017-07-14 13:51:28 -06:00

cgroup-v2.txt

cgroup: add cgroup.stat interface with basic hierarchy stats

2017-08-02 12:05:20 -07:00

Changes

docs: add back 'Documentation/Changes' file (as symlink)

2016-12-14 16:30:12 -08:00

circular-buffers.txt

circular-buffers.txt: standardize document format

2017-07-14 13:51:29 -06:00

clk.txt

clk.txt: standardize document format

2017-07-14 13:51:29 -06:00

CodingStyle

doc: re-add CodingStyle and SubmittingPatches

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

conf.py

docs-rst: don't require adjustbox anymore

2017-09-08 10:02:55 -06:00

cpu-load.txt

cpu-load: standardize document format

2017-07-14 13:51:30 -06:00

cputopology.txt

cputopology.txt: standardize document format

2017-07-14 13:51:30 -06:00

crc32.txt

crc32.txt: standardize document format

2017-07-14 13:51:30 -06:00

dcdbas.txt

dcdbas.txt: standardize document format

2017-07-14 13:51:31 -06:00

debugging-modules.txt

…

debugging-via-ohci1394.txt

debugging-via-ohci1394.txt: standardize document format

2017-07-14 13:51:34 -06:00

dell_rbu.txt

dell_rbu.txt: standardize document format

2017-07-14 13:58:12 -06:00

digsig.txt

digsig.txt: standardize document format

2017-07-14 13:51:31 -06:00

DMA-API-HOWTO.txt

DMA-API-HOWTO.txt: standardize document format

2017-07-14 13:51:32 -06:00

DMA-API.txt

dma-coherent: remove the DMA_MEMORY_MAP and DMA_MEMORY_IO flags

2017-09-01 11:59:17 +02:00

DMA-attributes.txt

DMA-attributes.txt: standardize document format

2017-07-14 13:51:33 -06:00

DMA-ISA-LPC.txt

DMA-ISA-LPC.txt: standardize document format

2017-07-14 13:51:33 -06:00

docutils.conf

doc-rst: add docutils config file

2016-08-14 11:52:40 -06:00

dontdiff

Remove gperf usage from toolchain

2017-08-19 11:02:53 -07:00

efi-stub.txt

efi-stub.txt: standardize document format

2017-07-14 13:51:34 -06:00

eisa.txt

eisa.txt: standardize document format

2017-07-14 13:51:34 -06:00

errseq.rst

Documentation: add some docs for errseq_t

2017-07-29 09:01:02 -04:00

flexible-arrays.txt

flexible-arrays.txt: standardize document format

2017-07-14 13:51:35 -06:00

futex-requeue-pi.txt

futex-requeue-pi.txt: standardize document format

2017-07-14 13:51:35 -06:00

gcc-plugins.txt

gcc-plugins.txt: standardize document format

2017-07-14 13:51:36 -06:00

highuid.txt

highuid.txt: standardize document format

2017-07-14 13:51:36 -06:00

hw_random.txt

hw_random.txt: standardize document format

2017-07-14 13:51:37 -06:00

hwspinlock.txt

hwspinlock.txt: standardize document format

2017-07-14 13:51:37 -06:00

index.rst

Make the main documentation title less Geocities

2017-06-23 14:02:27 -06:00

intel_txt.txt

intel_txt.txt: standardize document format

2017-07-14 13:51:38 -06:00

Intel-IOMMU.txt

Intel-IOMMU.txt: standardize document format

2017-07-14 13:51:38 -06:00

io_ordering.txt

io_ordering.txt: standardize document format

2017-07-14 13:51:39 -06:00

io-mapping.txt

io-mapping.txt: standardize document format

2017-07-14 13:51:38 -06:00

iostats.txt

iostats.txt: update it to cover recent Kernels

2017-07-14 13:51:40 -06:00

IPMI.txt

IPMI.txt: standardize document format

2017-07-14 13:51:40 -06:00

IRQ-affinity.txt

IRQ-affinity.txt: standardize document format

2017-07-14 13:51:41 -06:00

IRQ-domain.txt

IRQ-domain.txt: standardize document format

2017-07-14 13:51:41 -06:00

IRQ.txt

IRQ.txt: add a markup for its title

2017-07-14 13:51:42 -06:00

irqflags-tracing.txt

irqflags-tracing.txt: standardize document format

2017-07-14 13:51:42 -06:00

isa.txt

isa.txt: standardize document format

2017-07-14 13:51:43 -06:00

isapnp.txt

isapnp.txt: promote title level

2017-07-14 13:51:43 -06:00

kernel-doc-nano-HOWTO.txt

docs: update old references for DocBook from the documentation

2017-05-16 08:44:19 -03:00

kernel-per-CPU-kthreads.txt

kernel-per-CPU-kthreads.txt: standardize document format

2017-07-14 13:51:43 -06:00

kobject.txt

kobject.txt: standardize document format

2017-07-14 13:51:44 -06:00

kprobes.txt

docs: kprobes.txt: Fix whitespacing

2017-07-14 13:58:14 -06:00

kref.txt

kref.txt: standardize document format

2017-07-14 13:51:45 -06:00

ldm.txt

ldm.txt: standardize document format

2017-07-14 13:51:45 -06:00

lockup-watchdogs.txt

lockup-watchdogs.txt: standardize document format

2017-07-14 13:51:46 -06:00

logo.gif

…

logo.txt

…

lsm.txt

docs-rst: convert lsm from DocBook to ReST

2017-05-16 08:44:19 -03:00

lzo.txt

lzo.txt: standardize document format

2017-07-14 13:51:46 -06:00

mailbox.txt

mailbox.txt: standardize document format

2017-07-14 13:51:47 -06:00

Makefile

doc: Makefile: if sphinx is not found, run a check script

2017-08-24 13:18:30 -06:00

memory-barriers.txt

Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-09-04 11:52:29 -07:00

memory-hotplug.txt

memory-hotplug.txt: standardize document format

2017-07-14 13:57:53 -06:00

men-chameleon-bus.txt

men-chameleon-bus.txt: standardize document format

2017-07-14 13:57:54 -06:00

nommu-mmap.txt

nommu-mmap.txt: don't use all upper case on titles

2017-07-14 13:57:55 -06:00

ntb.txt

Merge tag 'standardize-docs' of git://git.lwn.net/linux

2017-07-15 12:58:58 -07:00

numastat.txt

numastat.txt: standardize document format

2017-07-14 13:57:56 -06:00

padata.txt

padata.txt: standardize document format

2017-07-14 13:57:56 -06:00

parport-lowlevel.txt

parport-lowlevel.txt: standardize document format

2017-07-14 13:57:57 -06:00

percpu-rw-semaphore.txt

percpu-rw-semaphore.txt: standardize document format

2017-07-14 13:57:58 -06:00

phy.txt

phy.txt: standardize document format

2017-07-14 13:57:58 -06:00

pi-futex.txt

pi-futex.txt: standardize document format

2017-07-14 13:57:59 -06:00

pnp.txt

pnp.txt: standardize document format

2017-07-14 13:57:59 -06:00

preempt-locking.txt

preempt-locking.txt: standardize document format

2017-07-14 13:58:00 -06:00

printk-formats.txt

printk-formats.txt: Add examples for %pF and %pS usage

2017-08-24 18:49:52 +02:00

pwm.txt

pwm: Standardize document format

2017-07-06 08:23:30 +02:00

rbtree.txt

rbtree: cache leftmost node internally

2017-09-08 18:26:48 -07:00

remoteproc.txt

remoteproc.txt: standardize document format

2017-07-14 13:58:02 -06:00

rfkill.txt

rfkill.txt: standardize document format

2017-07-14 13:58:02 -06:00

robust-futex-ABI.txt

robust-futex-ABI.txt: standardize document format

2017-07-14 13:58:03 -06:00

robust-futexes.txt

robust-futexes.txt: standardize document format

2017-07-14 13:58:03 -06:00

rpmsg.txt

rpmsg.txt: standardize document format

2017-07-14 13:58:04 -06:00

rtc.txt

rtc: add generic nvmem support

2017-07-07 13:14:14 +02:00

SAK.txt

SAK.txt: standardize document format

2017-07-14 13:58:04 -06:00

sgi-ioc4.txt

sgi-ioc4.txt: standardize document format

2017-07-14 13:58:05 -06:00

siphash.txt

siphash.txt: standardize document format

2017-07-14 13:58:06 -06:00

SM501.txt

SM501.txt: standardize document format

2017-07-14 13:58:06 -06:00

smsc_ece1099.txt

smsc_ece1099.txt: standardize document format

2017-07-14 13:58:07 -06:00

static-keys.txt

jump_label: Provide hotplug context variants

2017-08-10 12:28:59 +02:00

SubmittingPatches

doc: re-add CodingStyle and SubmittingPatches

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

svga.txt

svga.txt: standardize document format

2017-07-14 13:58:08 -06:00

switchtec.txt

switchtec: Add IOCTLs to the Switchtec driver

2017-04-12 12:23:37 -05:00

sync_file.txt

sync_file.txt: standardize document format

2017-05-24 13:01:27 -03:00

tee.txt

tee.txt: standardize document format

2017-07-14 13:58:14 -06:00

this_cpu_ops.txt

this_cpu_ops.txt: standardize document format

2017-07-14 13:58:08 -06:00

unaligned-memory-access.txt

unaligned-memory-access.txt: standardize document format

2017-07-14 13:58:09 -06:00

vfio-mediated-device.txt

vfio-mediated-device.txt: standardize document format

2017-07-14 13:58:10 -06:00

vfio.txt

vfio.txt: standardize document format

2017-07-14 13:58:10 -06:00

video-output.txt

…

xillybus.txt

xillybus.txt: standardize document format

2017-07-14 13:58:11 -06:00

xz.txt

xz.txt: standardize document format

2017-07-14 13:58:11 -06:00

zorro.txt

zorro.txt: standardize document format

2017-07-14 13:58:12 -06:00