Hans de Goede [Fri, 12 Jan 2018 08:36:48 +0000 (00:36 -0800)]
Input: goodix - disable IRQs while suspended
We should not try to do any i2c transfers before the controller is
resumed (which happens before our resume method gets called).
So we need to disable our IRQ while suspended to enforce this. The
code paths for devices with GPIOs for the int and reset pins already
disable the IRQ the through goodix_free_irq().
This commit also disables the IRQ while suspended for devices without
GPIOs for the int and reset pins.
This fixes the i2c bus sometimes getting stuck after a suspend/resume
causing the touchscreen to sometimes not work after a suspend/resume.
This has been tested on a GPD pocked device.
BugLink: https://github.com/nexus511/gpd-ubuntu-packages/issues/10
BugLink: https://www.reddit.com/r/GPDPocket/comments/7niut2/fix_for_broken_touch_after_resume_all_linux/
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Deepa Dinamani [Mon, 8 Jan 2018 01:44:42 +0000 (17:44 -0800)]
Input: extend usable life of event timestamps to 2106 on 32 bit systems
The input events use struct timeval to store event time, unfortunately
this structure is not y2038 safe and is being replaced in kernel with
y2038 safe structures.
Because of ABI concerns we can not change the size or the layout of
structure input_event, so we opt to re-interpreting the 'seconds' part
of timestamp as an unsigned value, effectively doubling the range of
values, to year 2106.
Newer glibc that has support for 32 bit applications to use 64 bit
time_t supplies __USE_TIME_BITS64 define [1], that we can use to present
the userspace with updated input_event layout. The updated layout will
cause the compile time breakage, alerting applications and distributions
maintainers to the issue. Existing 32 binaries will continue working
without any changes until 2038.
Ultimately userspace applications should switch to using monotonic or
boot time clocks, as realtime clock is not very well suited for input
event timestamps as it can go backwards (see
a80b83b7b8 "Input: evdev -
add CLOCK_BOOTTIME support" by by John Stultz). With monotonic clock the
practical range of reported times will always fit into the pair of 32
bit values, as we do not expect any system to stay up for a hundred
years without a single reboot.
[1] https://sourceware.org/glibc/wiki/Y2038ProofnessDesign
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Patchwork-Id:
10148083
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Hans de Goede [Tue, 9 Jan 2018 19:34:15 +0000 (11:34 -0800)]
Input: silead - add support for capactive home button found on some x86 tablets
On some x86 tablets with a silead touchscreen the windows logo on the
front is a capacitive home button. Touching this button results in a touch
with bits 12-15 of the Y coordinates set, while normally only the lower 12
are used.
Detect this and report a KEY_LEFTMETA press when this happens. Note for
now we only respond to the Y coordinate bits 12-15 containing 0x01, on some
tablets *without* a capacative button I've noticed these bits containing
0x04 when crossing the edges of the screen.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Rasmus Villemoes [Tue, 9 Jan 2018 01:10:46 +0000 (17:10 -0800)]
Input: cyapa - remove duplicated macro definitions
Apart from whitespace differences, this block of macros is repeated
twice:
$ x=./drivers/input/mouse/cyapa_gen3.c; diff -w -u <(sed -n '139,181p' $x) <(sed -n '182,224p' $x)
$
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pravin Shedge [Tue, 5 Dec 2017 18:20:43 +0000 (10:20 -0800)]
Input: synaptic_rmi4 - remove duplicate include in F34
This duplicate include has been found with scripts/checkincludes.pl but
it has been removed manually to avoid removing false positives.
Signed-off-by: Pravin Shedge <pravin.shedge4linux@gmail.com>
Patchwork-Id:
10092051
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Jeffrey Lin [Fri, 5 Jan 2018 05:35:23 +0000 (21:35 -0800)]
Input: raydium_i2c_ts - include hardware version in firmware name
Add hardware version to the firmware file name to handle scenarios where
single system image supports variety of devices.
Signed-off-by: Jeffrey Lin <jeffrey.lin@rad-ic.com>
Patchwork-Id:
10127677
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Zhuohua Li [Tue, 2 Jan 2018 06:51:47 +0000 (22:51 -0800)]
Input: tps65218-pwrbutton - fix a spelling mistake in Kconfig
Fix a spelling mistake: buttong -> button
Signed-off-by: Zhuohua Li <lizhuohua1994@gmail.com>
Patchwork-Id:
10134469
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Linus Walleij [Tue, 2 Jan 2018 06:49:29 +0000 (22:49 -0800)]
Input: gpio_tilt - delete driver
This driver was merged in 2011 as a tool for detecting the orientation
of a screen. The device driver assumes board file setup using the
platform data from <linux/input/gpio_tilt.h>. But no boards in the
kernel tree defines this platform data.
As I am faced with refactoring drivers to use GPIO descriptors and
pass decriptor tables from boards, or use the device tree device
drivers like these creates a serious problem: I cannot fix them and
cannot test them, not even compile-test them with a system actually
using it (no in-tree boardfile).
I suggest to delete this driver and rewrite it using device tree if
it is still in use on actively maintained systems.
I can also offer to rewrite it out of the blue using device tree if
someone promise to test it and help me iterate it.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Patchwork-Id:
10133609
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Deepa Dinamani [Tue, 2 Jan 2018 06:27:11 +0000 (22:27 -0800)]
Input: uinput - use monotonic times for timestamps
struct timeval which is part of struct input_event to maintain the event
times is not y2038 safe.
Real time timestamps are also not ideal for input_event as this time can go
backwards as noted in the patch
a80b83b7b8 by John Stultz.
The patch switches the timestamps to use monotonic time from realtime time.
This is assuming no one is using absolute times from these timestamps.
The structure to maintain input events will be changed in a different
patch.
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Patchwork-Id:
10118255
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Arnd Bergmann [Tue, 2 Jan 2018 05:32:02 +0000 (21:32 -0800)]
Input: hp_sdc - convert to ktime_get()
This gets rid of the deprecated do_gettimeofday() call in favor
of ktime_get(), which is also more reliable as it uses monotonic
times. The code now gets a bit simpler.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Patchwork-Id:
10076621
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
WEN Pingbo [Tue, 2 Jan 2018 05:31:18 +0000 (21:31 -0800)]
Input: hil_mlc - convert timeval to jiffies
struct timeval is not y2038 safe, and what mlc->instart do is
scheduling a task in a fixed timeout, so jiffies is the
simplest choice here.
In hilse_donode(), the expires in mod_timer equals
jiffies + intimeout - (now - instart)
If we use jiffies in 'now', the expires equals
instart + intimeout
So, all we need to do is that making sure expires is a future
timestamp before passed it to mod_timer.
[arnd: slightly simplified patch further]
Link: https://lists.linaro.org/pipermail/y2038/2015-October/000937.html
Signed-off-by: WEN Pingbo <pingbo.wen@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Patchwork-Id:
10076615
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
WEN Pingbo [Tue, 2 Jan 2018 05:29:18 +0000 (21:29 -0800)]
Input: hil_mlc - convert timeval to time64_t
Since mlc->lcv_t is only interested in seconds, directly using time64_t
here.
This gets rid of the deprecated do_gettimeofday() and avoids problems
with time going backwards since we now use the monotonic clocksource.
Signed-off-by: WEN Pingbo <pingbo.wen@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Patchwork-Id:
10076611
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Gustavo A. R. Silva [Fri, 10 Nov 2017 18:23:59 +0000 (10:23 -0800)]
Input: gamecon - mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Addresses-Coverity-ID: 114761
Addresses-Coverity-ID: 114762
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Gustavo A. R. Silva [Fri, 10 Nov 2017 18:23:35 +0000 (10:23 -0800)]
Input: sidewinder - mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Addresses-Coverity-ID: 114763
Addresses-Coverity-ID: 114764
Addresses-Coverity-ID: 114765
Addresses-Coverity-ID: 114766
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Gustavo A. R. Silva [Fri, 10 Nov 2017 18:23:14 +0000 (10:23 -0800)]
Input: spaceball - mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Addresses-Coverity-ID: 114767
Addresses-Coverity-ID: 114768
Addresses-Coverity-ID: 114769
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Dan Carpenter [Fri, 10 Nov 2017 18:21:53 +0000 (10:21 -0800)]
Input: uinput - unlock on allocation failure in ioctl
We have to unlock before returning if input_allocate_device() fails.
Fixes:
04ce40a61a91 ("Input: uinput - remove uinput_allocate_device()")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Andi Shyti [Fri, 10 Nov 2017 07:10:06 +0000 (23:10 -0800)]
Input: add support for the Samsung S6SY761 touchscreen
The S6SY761 touchscreen is a capicitive multi-touch controller
for mobile use. It's connected with i2c at the address 0x48.
This commit provides a basic version of the driver which can
handle only initialization, touch events and power states.
The controller is controlled by a firmware which, in the version
I currently have, doesn't provide all the possible
functionalities mentioned in the datasheet.
Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Anthony Kim [Wed, 25 Oct 2017 21:57:04 +0000 (14:57 -0700)]
Input: add support for HiDeep touchscreen
The HiDeep touchscreen device is a capacitive multi-touch controller
mainly for multi-touch supported devices use. It use I2C interface for
communication to IC and provide axis X, Y, Z locations for ten finger
touch through input event interface to userspace.
It support the Crimson and the Lime two type IC. They are different
the number of channel supported and FW size. But the working protocol
is same.
Signed-off-by: Anthony Kim <anthony.kim@hideep.com>
Acked-by: Rob Herring <robh+dt@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Geert Uytterhoeven [Tue, 31 Oct 2017 16:47:28 +0000 (09:47 -0700)]
Input: st1232 - remove obsolete platform device support
Commit
1fa59bda21c7fa36 ("ARM: shmobile: Remove legacy board code for
Armadillo-800 EVA"), removed the last user of st1232_pdata and the
"st1232-ts" platform device. All remaining users use DT.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Dmitry Torokhov [Wed, 8 Nov 2017 02:11:56 +0000 (18:11 -0800)]
Merge tag 'v4.14-rc8' into next
Merge with mainline to bring in SPDX markings to avoid annoying merge
problems when some header files get deleted.
Linus Torvalds [Sun, 5 Nov 2017 21:05:14 +0000 (13:05 -0800)]
Linux 4.14-rc8
Linus Torvalds [Sun, 5 Nov 2017 20:14:50 +0000 (12:14 -0800)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
"Two fixes:
- A PCID related revert that fixes power management and performance
regressions.
- The module loader robustization and sanity check commit is rather
fresh, but it looked like a good idea to apply because of the
hidden data corruption problem such invalid modules could cause"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/module: Detect and skip invalid relocations
Revert "x86/mm: Stop calling leave_mm() in idle code"
Linus Torvalds [Sun, 5 Nov 2017 20:12:51 +0000 (12:12 -0800)]
Merge branch 'ras-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull RAS fix from Ingo Molnar:
"Fix an RCU warning that triggers when /dev/mcelog is used"
* 'ras-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mcelog: Get rid of RCU remnants
Linus Torvalds [Sun, 5 Nov 2017 19:44:39 +0000 (11:44 -0800)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
"Various fixes:
- synchronize kernel and tooling headers
- cgroup support fix
- two tooling fixes"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
tools/headers: Synchronize kernel ABI headers
perf/cgroup: Fix perf cgroup hierarchy support
perf tools: Unwind properly location after REJECT
perf symbols: Fix memory corruption because of zero length symbols
Linus Torvalds [Sun, 5 Nov 2017 19:43:20 +0000 (11:43 -0800)]
Merge branch 'irq-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull irq fix from Ingo Molnar:
"An irqchip driver init fix"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/irq-mvebu-gicp: Add missing spin_lock init
Linus Torvalds [Sun, 5 Nov 2017 19:02:15 +0000 (11:02 -0800)]
Merge branch 'core-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull core fixes from Ingo Molnar:
- workaround for gcc asm handling
- futex race fixes
- objtool build warning fix
- two watchdog fixes: a crash fix (revert) and a bug fix for
/proc/sys/kernel/watchdog_thresh handling.
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool: Prevent GCC from merging annotate_unreachable(), take 2
objtool: Resync objtool's instruction decoder source code copy with the kernel's latest version
watchdog/hardlockup/perf: Use atomics to track in-use cpu counter
watchdog/harclockup/perf: Revert
a33d44843d45 ("watchdog/hardlockup/perf: Simplify deferred event destroy")
futex: Fix more put_pi_state() vs. exit_pi_state_list() races
Linus Torvalds [Sun, 5 Nov 2017 18:21:06 +0000 (10:21 -0800)]
Merge tag 'enforcement-4.14-rc8' of git://git./linux/kernel/git/gregkh/driver-core
Pull enforcement statement update from Greg KH:
"Documentation: enforcement-statement: name updates
Here are 12 patches for the kernel-enforcement-statement.rst file that
add new names, fix the ordering of them, remove a duplicate, and
remove some company markings that wished to be removed.
All of these have passed the 0-day testing, even-though it is just a
documentation file update :)"
* tag 'enforcement-4.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
Documentation: Add Frank Rowand to list of enforcement statement endorsers
doc: add Willy Tarreau to the list of enforcement statement endorsers
Documentation: Add Tim Bird to list of enforcement statement endorsers
Documentation: Add my name to kernel enforcement statement
Documentation: kernel-enforcement-statement.rst: proper sort names
Documentation: Add Arm Ltd to kernel-enforcement-statement.rst
Documentation: kernel-enforcement-statement.rst: Remove Red Hat markings
Documentation: Add myself to the enforcement statement list
Documentation: Sign kernel enforcement statement
Add ack for Trond Myklebust to the enforcement statement
Documentation: update kernel enforcement support list
Documentation: add my name to supporters
Josh Poimboeuf [Fri, 3 Nov 2017 12:58:54 +0000 (07:58 -0500)]
x86/module: Detect and skip invalid relocations
There have been some cases where external tooling (e.g., kpatch-build)
creates a corrupt relocation which targets the wrong address. This is a
silent failure which can corrupt memory in unexpected places.
On x86, the bytes of data being overwritten by relocations are always
initialized to zero beforehand. Use that knowledge to add sanity checks
to detect such cases before they corrupt memory.
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: jeyu@kernel.org
Cc: live-patching@vger.kernel.org
Link: http://lkml.kernel.org/r/37450d6c6225e54db107fba447ce9e56e5f758e9.1509713553.git.jpoimboe@redhat.com
[ Restructured the messages, as it's unclear whether the relocation or the target is corrupted. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Linus Torvalds [Sat, 4 Nov 2017 21:26:30 +0000 (14:26 -0700)]
Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
- omit EFI memory map sorting, which was recently introduced, but
caused problems with the decompressor due to additional sections
being emitted.
- avoid unaligned load fault-generating instructions in the
decompressor by switching to a private unaligned implementation.
- add a symbol into the decompressor to further debug non-boot
situations (ld's documentation is extremely poor for how "." works,
ld doesn't seem to follow its own documentation!)
- parse endian information to sparse
* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: add debug ".edata_real" symbol
ARM: 8716/1: pass endianness info to sparse
efi/libstub: arm: omit sorting of the UEFI memory map
ARM: 8715/1: add a private asm/unaligned.h
Linus Torvalds [Sat, 4 Nov 2017 18:44:55 +0000 (11:44 -0700)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm
Pull KVM fixes from Paolo Bonzini:
"Fixes for interrupt controller emulation in ARM/ARM64 and x86, plus a
one-liner x86 KVM guest fix"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86: Update APICv on APIC reset
KVM: VMX: Do not fully reset PI descriptor on vCPU reset
kvm: Return -ENODEV from update_persistent_clock
KVM: arm/arm64: vgic-its: Check GITS_BASER Valid bit before saving tables
KVM: arm/arm64: vgic-its: Check CBASER/BASER validity before enabling the ITS
KVM: arm/arm64: vgic-its: Fix vgic_its_restore_collection_table returned value
KVM: arm/arm64: vgic-its: Fix return value for device table restore
arm/arm64: kvm: Disable branch profiling in HYP code
arm/arm64: kvm: Move initialization completion message
arm/arm64: KVM: set right LR register value for 32 bit guest when inject abort
KVM: arm64: its: Fix missing dynamic allocation check in scan_its_table
Linus Torvalds [Sat, 4 Nov 2017 18:33:28 +0000 (11:33 -0700)]
Merge tag 'armsoc-fixes' of git://git./linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Arnd Bergmann:
"Only two patches came in over the last two weeks: Uniphier USB support
needs additional clocks enabled (on both 32-bit and 64-bit ARM), and a
Marvell MVEBU stability issue has been fixed"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: dts: mvebu: pl310-cache disable double-linefill
arm64: dts: uniphier: add STDMAC clock to EHCI nodes
ARM: dts: uniphier: add STDMAC clock to EHCI nodes
Linus Torvalds [Sat, 4 Nov 2017 18:31:02 +0000 (11:31 -0700)]
Merge tag 'mips_fixes_4.14' of git://git./linux/kernel/git/jhogan/mips
Pull MIPS fixes from James Hogan:
"A selection of important MIPS fixes for 4.14, and some MAINTAINERS /
email address updates:
Maintainership updates:
- imgtec.com -> mips.com email addresses (this trivially updates
comments in quite a few files, as well as MAINTAINERS)
- Pistachio SoC maintainership update
Fixes:
- NI 169445 build (new platform in 4.14)
- EVA regression (4.14)
- SMP-CPS build & preemption regressions (4.14)
- SMP/hotplug deadlock & race (deadlock reintroduced 4.13)
- ebpf_jit error return (4.13)
- SMP-CMP build regressions (4.11 and 4.14)
- bad UASM microMIPS encoding (3.16)
- CM definitions (3.15)"
[ I had taken the email address updates separately, because I didn't
expect James to send a pull request, so those got applied twice. - Linus]
* tag 'mips_fixes_4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips:
MIPS: Update email address for Marcin Nowakowski
MIPS: smp-cmp: Fix vpe_id build error
MAINTAINERS: Update Pistachio platform maintainers
MIPS: smp-cmp: Use right include for task_struct
MIPS: Update Goldfish RTC driver maintainer email address
MIPS: Update RINT emulation maintainer email address
MIPS: CPS: Fix use of current_cpu_data in preemptible code
MIPS: SMP: Fix deadlock & online race
MIPS: bpf: Fix a typo in build_one_insn()
MIPS: microMIPS: Fix incorrect mask in insn_table_MM
MIPS: Fix CM region target definitions
MIPS: generic: Fix compilation error from include asm/mips-cpc.h
MIPS: Fix exception entry when CONFIG_EVA enabled
MIPS: generic: Fix NI 169445 its build
Update MIPS email addresses
Josh Poimboeuf [Fri, 3 Nov 2017 22:19:41 +0000 (17:19 -0500)]
objtool: Prevent GCC from merging annotate_unreachable(), take 2
This fixes the following warning with GCC 4.6:
mm/migrate.o: warning: objtool: migrate_misplaced_transhuge_page()+0x71: unreachable instruction
The problem is that the compiler merged identical annotate_unreachable()
inline asm blocks, resulting in a missing 'unreachable' annotation.
This problem happened before, and was partially fixed with:
3d1e236022cc ("objtool: Prevent GCC from merging annotate_unreachable()")
That commit tried to ensure that each instance of the
annotate_unreachable() inline asm statement has a unique label. It used
the __LINE__ macro to generate the label number. However, even the line
number isn't necessarily unique when used in an inline function with
multiple callers (in this case, __alloc_pages_node()'s use of
VM_BUG_ON).
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: kbuild-all@01.org
Cc: tipbuild@zytor.com
Fixes:
3d1e236022cc ("objtool: Prevent GCC from merging annotate_unreachable()")
Link: http://lkml.kernel.org/r/20171103221941.cajpwszir7ujxyc4@treble
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Andy Lutomirski [Sat, 4 Nov 2017 11:16:12 +0000 (04:16 -0700)]
Revert "x86/mm: Stop calling leave_mm() in idle code"
This reverts commit
43858b4f25cf0adc5c2ca9cf5ce5fdf2532941e5.
The reason I removed the leave_mm() calls in question is because the
heuristic wasn't needed after that patch. With the original version
of my PCID series, we never flushed a "lazy cpu" (i.e. a CPU running
kernel thread) due a flush on the loaded mm.
Unfortunately, that caused architectural issues, so now I've
reinstated these flushes on non-PCID systems in:
commit
b956575bed91 ("x86/mm: Flush more aggressively in lazy TLB mode").
That, in turn, gives us a power management and occasionally
performance regression as compared to old kernels: a process that
goes into a deep idle state on a given CPU and gets its mm flushed
due to activity on a different CPU will wake the idle CPU.
Reinstate the old ugly heuristic: if a CPU goes into ACPI C3 or an
intel_idle state that is likely to cause a TLB flush gets its mm
switched to init_mm before going idle.
FWIW, this heuristic is lousy. Whether we should change CR3 before
idle isn't a good hint except insofar as the performance hit is a bit
lower if the TLB is getting flushed by the idle code anyway. What we
really want to know is whether we anticipate being idle long enough
that the mm is likely to be flushed before we wake up. This is more a
matter of the expected latency than the idle state that gets chosen.
This heuristic also completely fails on systems that don't know
whether the TLB will be flushed (e.g. AMD systems?). OTOH it may be a
bit obsolete anyway -- PCID systems don't presently benefit from this
heuristic at all.
We also shouldn't do this callback from innermost bit of the idle code
due to the RCU nastiness it causes. All the information need is
available before rcu_idle_enter() needs to happen.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Borislav Petkov <bpetkov@suse.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes:
43858b4f25cf "x86/mm: Stop calling leave_mm() in idle code"
Link: http://lkml.kernel.org/r/c513bbd4e653747213e05bc7062de000bf0202a5.1509793738.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Frank Rowand [Fri, 3 Nov 2017 19:50:58 +0000 (12:50 -0700)]
Documentation: Add Frank Rowand to list of enforcement statement endorsers
Add my name to the list.
Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Willy Tarreau [Fri, 3 Nov 2017 06:54:11 +0000 (07:54 +0100)]
doc: add Willy Tarreau to the list of enforcement statement endorsers
add me to the list.
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ingo Molnar [Fri, 3 Nov 2017 11:18:37 +0000 (12:18 +0100)]
tools/headers: Synchronize kernel ABI headers
After the SPDX license tags were added a number of tooling headers got out of
sync with their kernel variants, generating lots of build warnings.
Sync them:
- tools/arch/x86/include/asm/disabled-features.h,
tools/arch/x86/include/asm/required-features.h,
tools/include/linux/hash.h:
Remove the SPDX tag where the kernel version does not have it.
- tools/include/asm-generic/bitops/__fls.h,
tools/include/asm-generic/bitops/arch_hweight.h,
tools/include/asm-generic/bitops/const_hweight.h,
tools/include/asm-generic/bitops/fls.h,
tools/include/asm-generic/bitops/fls64.h,
tools/include/uapi/asm-generic/ioctls.h,
tools/include/uapi/asm-generic/mman-common.h,
tools/include/uapi/sound/asound.h,
tools/include/uapi/linux/kvm.h,
tools/include/uapi/linux/perf_event.h,
tools/include/uapi/linux/sched.h,
tools/include/uapi/linux/vhost.h,
tools/include/uapi/sound/asound.h:
Add the SPDX tag of the respective kernel header.
- tools/include/uapi/linux/bpf_common.h,
tools/include/uapi/linux/fcntl.h,
tools/include/uapi/linux/hw_breakpoint.h,
tools/include/uapi/linux/mman.h,
tools/include/uapi/linux/stat.h,
Change the tag to the kernel header version:
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
Also sync other header details:
- include/uapi/sound/asound.h:
Fix pointless end of line whitespace noise the header grew in this cycle.
- tools/arch/x86/lib/memcpy_64.S:
Sync the code and add tools/include/asm/export.h with dummy wrappers
to support building the kernel side code in a tooling header environment.
- tools/include/uapi/asm-generic/mman.h,
tools/include/uapi/linux/bpf.h:
Sync other details that don't impact tooling's use of the ABIs.
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Josh Poimboeuf [Fri, 3 Nov 2017 14:31:43 +0000 (09:31 -0500)]
objtool: Resync objtool's instruction decoder source code copy with the kernel's latest version
This fixes the following warning:
warning: objtool: x86 instruction decoder differs from kernel
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/013315a808ccf5580abc293808827c8e2b5e1354.1509719152.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Ingo Molnar [Sat, 4 Nov 2017 07:53:04 +0000 (08:53 +0100)]
Merge branch 'linus' into core/urgent, to pick up dependent commits
We want to fix an objtool build warning that got introduced in the latest upstream kernel.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Linus Torvalds [Sat, 4 Nov 2017 01:10:23 +0000 (18:10 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
"Just a couple of fixups to the sparse-keymap module and the Microchip
AR1021 touchscreen driver"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: sparse-keymap - send sync event for KE_SW/KE_VSW
Input: ar1021_i2c - set INPUT_PROP_DIRECT
Linus Torvalds [Fri, 3 Nov 2017 20:56:15 +0000 (13:56 -0700)]
Merge tag 'clk-fixes-for-linus' of git://git./linux/kernel/git/clk/linux
Pull clk fix from Stephen Boyd:
"One fix for USB clks on Uniphier PXs3 SoCs"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: uniphier: fix clock data for PXs3
Stefan Brüns [Fri, 3 Nov 2017 19:17:40 +0000 (12:17 -0700)]
Input: sparse-keymap - send sync event for KE_SW/KE_VSW
Sync events are sent by sparse_keymap_report_entry for normal KEY_*
events, and are generated by several drivers after generating
SW_* events, so sparse_keymap_report_entry should do the same.
Without the sync, events are accumulated in the kernel.
Currently, no driver uses sparse-keymap for SW_* events, but
it is required for the intel-vbtn platform driver to generate
SW_TABLET_MODE events.
Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Martin Kepplinger [Thu, 2 Nov 2017 23:51:28 +0000 (16:51 -0700)]
Input: ar1021_i2c - set INPUT_PROP_DIRECT
If INPUT_PROP_DIRECT is set, userspace doesn't have to fall back to old
ways of identifying touchscreen devices. Let's add it.
Signed-off-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Kees Cook [Fri, 3 Nov 2017 19:21:48 +0000 (12:21 -0700)]
Input: convert autorepeat timer to use timer_setup()
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Sean Young [Fri, 3 Nov 2017 19:19:28 +0000 (12:19 -0700)]
media: ttpci: remove autorepeat handling and use timer_setup
Leave the autorepeat handling up to the input layer, and move
to the new timer API.
Compile tested only.
Signed-off-by: Sean Young <sean@mess.org>
Acked-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Vince Kim [Tue, 31 Oct 2017 18:33:40 +0000 (11:33 -0700)]
Input: cyttsp4 - avoid overflows when calculating memory sizes
There are several places to perform subtraction to calculate buffer
size such as:
si->si_ofs.cydata_size = si->si_ofs.test_ofs - si->si_ofs.cydata_ofs;
...
p = krealloc(si->si_ptrs.cydata, si->si_ofs.cydata_size, GFP_KERNEL);
Actually, data types of above variables during subtraction are size_t, so
it is unsigned. That means if second operand(si->si_ofs.cydata_ofs) is
greater than the first operand(si->si_ofs.test_ofs), then resulting
si->si_ofs.cydata_size could result in an unsigned integer wrap which is
not desirable.
The proper way to correct this problem is to perform a test of both
operands to avoid having unsigned wrap.
Signed-off-by: Vince Kim <vince.k.kim@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Linus Torvalds [Fri, 3 Nov 2017 17:36:43 +0000 (10:36 -0700)]
Merge git://git./linux/kernel/git/cmetcalf/linux-tile
Pull arch/tile fixes from Chris Metcalf:
"Two one-line bug fixes"
* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
arch/tile: Implement ->set_state_oneshot_stopped()
tile: pass machine size to sparse
Linus Torvalds [Fri, 3 Nov 2017 17:26:40 +0000 (10:26 -0700)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi
Pull SCSI fix from James Bottomley:
"One minor fix in the error leg of the qla2xxx driver (it oopses the
system if we get an error trying to start the internal kernel thread).
The fix is minor because the problem isn't often encountered in the
field (although it can be induced by inserting the module in a low
memory environment)"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: qla2xxx: Fix oops in qla2x00_probe_one error path
Chris Metcalf [Fri, 3 Nov 2017 17:20:54 +0000 (13:20 -0400)]
arch/tile: Implement ->set_state_oneshot_stopped()
set_state_oneshot_stopped() is called by the clkevt core, when the
next event is required at an expiry time of 'KTIME_MAX'. This normally
happens with NO_HZ_{IDLE|FULL} in both LOWRES/HIGHRES modes.
This patch makes the clockevent device to stop on such an event, to
avoid spurious interrupts, as explained by: commit
8fff52fd5093
("clockevents: Introduce CLOCK_EVT_STATE_ONESHOT_STOPPED state").
Signed-off-by: Chris Metcalf <cmetcalf@mellanox.com>
Linus Torvalds [Fri, 3 Nov 2017 16:25:53 +0000 (09:25 -0700)]
Merge tag 'powerpc-4.14-6' of git://git./linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Some more powerpc fixes for 4.14.
This is bigger than I like to send at rc7, but that's at least partly
because I didn't send any fixes last week. If it wasn't for the IMC
driver, which is new and getting heavy testing, the diffstat would
look a bit better. I've also added ftrace on big endian to my test
suite, so we shouldn't break that again in future.
- A fix to the handling of misaligned paste instructions (P9 only),
where a change to a #define has caused the check for the
instruction to always fail.
- The preempt handling was unbalanced in the radix THP flush (P9
only). Though we don't generally use preempt we want to keep it
working as much as possible.
- Two fixes for IMC (P9 only), one when booting with restricted
number of CPUs and one in the error handling when initialisation
fails due to firmware etc.
- A revert to fix function_graph on big endian machines, and then a
rework of the reverted patch to fix kprobes blacklist handling on
big endian machines.
Thanks to: Anju T Sudhakar, Guilherme G. Piccoli, Madhavan Srinivasan,
Naveen N. Rao, Nicholas Piggin, Paul Mackerras"
* tag 'powerpc-4.14-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/perf: Fix core-imc hotplug callback failure during imc initialization
powerpc/kprobes: Dereference function pointers only if the address does not belong to kernel text
Revert "powerpc64/elfv1: Only dereference function descriptor for non-text symbols"
powerpc/64s/radix: Fix preempt imbalance in TLB flush
powerpc: Fix check for copy/paste instructions in alignment handler
powerpc/perf: Fix IMC allocation routine
Linus Torvalds [Fri, 3 Nov 2017 16:19:20 +0000 (09:19 -0700)]
Merge tag 'mmc-v4.14-rc4-3' of git://git./linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
"Fix dw_mmc request timeout issues"
* tag 'mmc-v4.14-rc4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: dw_mmc: Fix the DTO timeout calculation
mmc: dw_mmc: Add locking to the CTO timer
mmc: dw_mmc: Fix the CTO timeout calculation
mmc: dw_mmc: cancel the CTO timer after a voltage switch
Linus Torvalds [Fri, 3 Nov 2017 16:14:22 +0000 (09:14 -0700)]
Merge tag 'drm-fixes-for-v4.14-rc8' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
- one nouveau regression fix
- some amdgpu fixes for stable to fix hangs on some harvested Polaris
GPUs
- a set of KASAN and regression fixes for i915, their CI system seems
to be working pretty well now.
* tag 'drm-fixes-for-v4.14-rc8' of git://people.freedesktop.org/~airlied/linux:
drm/amdgpu: allow harvesting check for Polaris VCE
drm/amdgpu: return -ENOENT from uvd 6.0 early init for harvesting
drm/i915: Check incoming alignment for unfenced buffers (on i915gm)
drm/nouveau/kms/nv50: use the correct state for base channel notifier setup
drm/i915: Hold rcu_read_lock when iterating over the radixtree (vma idr)
drm/i915: Hold rcu_read_lock when iterating over the radixtree (objects)
drm/i915/edp: read edp display control registers unconditionally
drm/i915: Do not rely on wm preservation for ILK watermarks
drm/i915: Cancel the modeset retry work during modeset cleanup
Linus Torvalds [Fri, 3 Nov 2017 16:09:21 +0000 (09:09 -0700)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
"Hopefully this is the last batch of networking fixes for 4.14
Fingers crossed...
1) Fix stmmac to use the proper sized OF property read, from Bhadram
Varka.
2) Fix use after free in net scheduler tc action code, from Cong
Wang.
3) Fix SKB control block mangling in tcp_make_synack().
4) Use proper locking in fib_dump_info(), from Florian Westphal.
5) Fix IPG encodings in systemport driver, from Florian Fainelli.
6) Fix division by zero in NV TCP congestion control module, from
Konstantin Khlebnikov.
7) Fix use after free in nf_reject_ipv4, from Tejaswi Tanikella"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
net: systemport: Correct IPG length settings
tcp: do not mangle skb->cb[] in tcp_make_synack()
fib: fib_dump_info can no longer use __in_dev_get_rtnl
stmmac: use of_property_read_u32 instead of read_u8
net_sched: hold netns refcnt for each action
net_sched: acquire RTNL in tc_action_net_exit()
net: vrf: correct FRA_L3MDEV encode type
tcp_nv: fix division by zero in tcpnv_acked()
netfilter: nf_reject_ipv4: Fix use-after-free in send_reset
netfilter: nft_set_hash: disable fast_ops for 2-len keys
Linus Torvalds [Fri, 3 Nov 2017 16:03:50 +0000 (09:03 -0700)]
Merge branch 'akpm' (patches from Andrew)
Merge misc fixes from Andrew Morton:
"7 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
mm, swap: fix race between swap count continuation operations
mm/huge_memory.c: deposit page table when copying a PMD migration entry
initramfs: fix initramfs rebuilds w/ compression after disabling
fs/hugetlbfs/inode.c: fix hwpoison reserve accounting
ocfs2: fstrim: Fix start offset of first cluster group during fstrim
mm, /proc/pid/pagemap: fix soft dirty marking for PMD migration entry
userfaultfd: hugetlbfs: prevent UFFDIO_COPY to fill beyond the end of i_size
Paul Burton [Thu, 26 Oct 2017 00:04:33 +0000 (17:04 -0700)]
Update MIPS email addresses
MIPS will soon not be a part of Imagination Technologies, and as such
many @imgtec.com email addresses will no longer be valid. This patch
updates the addresses for those who:
- Have 10 or more patches in mainline authored using an @imgtec.com
email address, or any patches dated within the past year.
- Are still with Imagination but leaving as part of the MIPS business
unit, as determined from an internal email address list.
- Haven't already updated their email address (ie. JamesH) or expressed
a desire to be excluded (ie. Maciej).
- Acked v2 or earlier of this patch, which leaves Deng-Cheng, Matt &
myself.
New addresses are of the form firstname.lastname@mips.com, and all
verified against an internal email address list. An entry is added to
.mailmap for each person such that get_maintainer.pl will report the new
addresses rather than @imgtec.com addresses which will soon be dead.
Instances of the affected addresses throughout the tree are then
mechanically replaced with the new @mips.com address.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>
Cc: Deng-Cheng Zhu <dengcheng.zhu@mips.com>
Acked-by: Dengcheng Zhu <dengcheng.zhu@mips.com>
Cc: Matt Redfearn <matt.redfearn@imgtec.com>
Cc: Matt Redfearn <matt.redfearn@mips.com>
Acked-by: Matt Redfearn <matt.redfearn@mips.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: trivial@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Rafael J. Wysocki [Fri, 3 Nov 2017 15:35:49 +0000 (16:35 +0100)]
x86: CPU: Fix up "cpu MHz" in /proc/cpuinfo
Commit
890da9cf0983 (Revert "x86: do not use cpufreq_quick_get() for
/proc/cpuinfo "cpu MHz"") is not sufficient to restore the previous
behavior of "cpu MHz" in /proc/cpuinfo on x86 due to some changes
made after the commit it has reverted.
To address this, make the code in question use arch_freq_get_on_cpu()
which also is used by cpufreq for reporting the current frequency of
CPUs and since that function doesn't really depend on cpufreq in any
way, drop the CONFIG_CPU_FREQ dependency for the object file
containing it.
Also refactor arch_freq_get_on_cpu() somewhat to avoid IPIs and
return cached values right away if it is called very often over a
short time (to prevent user space from triggering IPI storms through
it).
Fixes:
890da9cf0983 (Revert "x86: do not use cpufreq_quick_get() for /proc/cpuinfo "cpu MHz"")
Cc: stable@kernel.org # 4.13 - together with 890da9cf0983
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Huang Ying [Thu, 2 Nov 2017 22:59:50 +0000 (15:59 -0700)]
mm, swap: fix race between swap count continuation operations
One page may store a set of entries of the sis->swap_map
(swap_info_struct->swap_map) in multiple swap clusters.
If some of the entries has sis->swap_map[offset] > SWAP_MAP_MAX,
multiple pages will be used to store the set of entries of the
sis->swap_map. And the pages are linked with page->lru. This is called
swap count continuation. To access the pages which store the set of
entries of the sis->swap_map simultaneously, previously, sis->lock is
used. But to improve the scalability of __swap_duplicate(), swap
cluster lock may be used in swap_count_continued() now. This may race
with add_swap_count_continuation() which operates on a nearby swap
cluster, in which the sis->swap_map entries are stored in the same page.
The race can cause wrong swap count in practice, thus cause unfreeable
swap entries or software lockup, etc.
To fix the race, a new spin lock called cont_lock is added to struct
swap_info_struct to protect the swap count continuation page list. This
is a lock at the swap device level, so the scalability isn't very well.
But it is still much better than the original sis->lock, because it is
only acquired/released when swap count continuation is used. Which is
considered rare in practice. If it turns out that the scalability
becomes an issue for some workloads, we can split the lock into some
more fine grained locks.
Link: http://lkml.kernel.org/r/20171017081320.28133-1-ying.huang@intel.com
Fixes:
235b62176712 ("mm/swap: add cluster lock")
Signed-off-by: "Huang, Ying" <ying.huang@intel.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Shaohua Li <shli@kernel.org>
Cc: Tim Chen <tim.c.chen@intel.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Aaron Lu <aaron.lu@intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: <stable@vger.kernel.org> [4.11+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Zi Yan [Thu, 2 Nov 2017 22:59:47 +0000 (15:59 -0700)]
mm/huge_memory.c: deposit page table when copying a PMD migration entry
We need to deposit pre-allocated PTE page table when a PMD migration
entry is copied in copy_huge_pmd(). Otherwise, we will leak the
pre-allocated page and cause a NULL pointer dereference later in
zap_huge_pmd().
The missing counters during PMD migration entry copy process are added
as well.
The bug report is here: https://lkml.org/lkml/2017/10/29/214
Link: http://lkml.kernel.org/r/20171030144636.4836-1-zi.yan@sent.com
Fixes:
84c3fc4e9c563 ("mm: thp: check pmd migration entry in common path")
Signed-off-by: Zi Yan <zi.yan@cs.rutgers.edu>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Florian Fainelli [Thu, 2 Nov 2017 22:59:44 +0000 (15:59 -0700)]
initramfs: fix initramfs rebuilds w/ compression after disabling
This is a follow-up to commit
57ddfdaa9a72 ("initramfs: fix disabling of
initramfs (and its compression)"). This particular commit fixed the use
case where we build the kernel with an initramfs with no compression,
and then we build the kernel with no initramfs.
Now this still left us with the same case as described here:
http://lkml.kernel.org/r/
20170521033337.6197-1-f.fainelli@gmail.com
not working with initramfs compression. This can be seen by the
following steps/timestamps:
https://www.spinics.net/lists/kernel/msg2598153.html
.initramfs_data.cpio.gz.cmd is correct:
cmd_usr/initramfs_data.cpio.gz := /bin/bash
./scripts/gen_initramfs_list.sh -o usr/initramfs_data.cpio.gz -u 1000 -g 1000 /home/fainelli/work/uclinux-rootfs/romfs /home/fainelli/work/uclinux-rootfs/misc/initramfs.dev
and was generated the first time we did generate the gzip initramfs, so
the command has not changed, nor its arguments, so we just don't call
it, no initramfs cpio is re-generated as a consequence.
The fix for this problem is just to properly keep track of the
.initramfs_cpio_data.d file by suffixing it with the compression
extension. This takes care of properly tracking dependencies such that
the initramfs get (re)generated any time files are added/deleted etc.
Link: http://lkml.kernel.org/r/20170930033936.6722-1-f.fainelli@gmail.com
Fixes:
db2aa7fd15e8 ("initramfs: allow again choice of the embedded initramfs compression algorithm")
Fixes:
9e3596b0c653 ("kbuild: initramfs cleanup, set target from Kconfig")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: "Francisco Blas Izquierdo Riera (klondike)" <klondike@xiscosoft.net>
Cc: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Kravetz [Thu, 2 Nov 2017 22:59:41 +0000 (15:59 -0700)]
fs/hugetlbfs/inode.c: fix hwpoison reserve accounting
Calling madvise(MADV_HWPOISON) on a hugetlbfs page will result in bad
(negative) reserved huge page counts. This may not happen immediately,
but may happen later when the underlying file is removed or filesystem
unmounted. For example:
AnonHugePages: 0 kB
ShmemHugePages: 0 kB
HugePages_Total: 1
HugePages_Free: 0
HugePages_Rsvd:
18446744073709551615
HugePages_Surp: 0
Hugepagesize: 2048 kB
In routine hugetlbfs_error_remove_page(), hugetlb_fix_reserve_counts is
called after remove_huge_page. hugetlb_fix_reserve_counts is designed
to only be called/used only if a failure is returned from
hugetlb_unreserve_pages. Therefore, call hugetlb_unreserve_pages as
required and only call hugetlb_fix_reserve_counts in the unlikely event
that hugetlb_unreserve_pages returns an error.
Link: http://lkml.kernel.org/r/20171019230007.17043-2-mike.kravetz@oracle.com
Fixes:
78bb920344b8 ("mm: hwpoison: dissolve in-use hugepage in unrecoverable memory error")
Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com>
Acked-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Aneesh Kumar <aneesh.kumar@linux.vnet.ibm.com>
Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ashish Samant [Thu, 2 Nov 2017 22:59:37 +0000 (15:59 -0700)]
ocfs2: fstrim: Fix start offset of first cluster group during fstrim
The first cluster group descriptor is not stored at the start of the
group but at an offset from the start. We need to take this into
account while doing fstrim on the first cluster group. Otherwise we
will wrongly start fstrim a few blocks after the desired start block and
the range can cross over into the next cluster group and zero out the
group descriptor there. This can cause filesytem corruption that cannot
be fixed by fsck.
Link: http://lkml.kernel.org/r/1507835579-7308-1-git-send-email-ashish.samant@oracle.com
Signed-off-by: Ashish Samant <ashish.samant@oracle.com>
Reviewed-by: Junxiao Bi <junxiao.bi@oracle.com>
Reviewed-by: Joseph Qi <jiangqi903@gmail.com>
Cc: Mark Fasheh <mfasheh@versity.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Huang Ying [Thu, 2 Nov 2017 22:59:34 +0000 (15:59 -0700)]
mm, /proc/pid/pagemap: fix soft dirty marking for PMD migration entry
When the pagetable is walked in the implementation of /proc/<pid>/pagemap,
pmd_soft_dirty() is used for both the PMD huge page map and the PMD
migration entries. That is wrong, pmd_swp_soft_dirty() should be used
for the PMD migration entries instead because the different page table
entry flag is used.
As a result, /proc/pid/pagemap may report incorrect soft dirty information
for PMD migration entries.
Link: http://lkml.kernel.org/r/20171017081818.31795-1-ying.huang@intel.com
Fixes:
84c3fc4e9c56 ("mm: thp: check pmd migration entry in common path")
Signed-off-by: "Huang, Ying" <ying.huang@intel.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Hugh Dickins <hughd@google.com>
Cc: "Jérôme Glisse" <jglisse@redhat.com>
Cc: Daniel Colascione <dancol@google.com>
Cc: Zi Yan <zi.yan@cs.rutgers.edu>
Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andrea Arcangeli [Thu, 2 Nov 2017 22:59:29 +0000 (15:59 -0700)]
userfaultfd: hugetlbfs: prevent UFFDIO_COPY to fill beyond the end of i_size
This oops:
kernel BUG at fs/hugetlbfs/inode.c:484!
RIP: remove_inode_hugepages+0x3d0/0x410
Call Trace:
hugetlbfs_setattr+0xd9/0x130
notify_change+0x292/0x410
do_truncate+0x65/0xa0
do_sys_ftruncate.constprop.3+0x11a/0x180
SyS_ftruncate+0xe/0x10
tracesys+0xd9/0xde
was caused by the lack of i_size check in hugetlb_mcopy_atomic_pte.
mmap() can still succeed beyond the end of the i_size after vmtruncate
zapped vmas in those ranges, but the faults must not succeed, and that
includes UFFDIO_COPY.
We could differentiate the retval to userland to represent a SIGBUS like
a page fault would do (vs SIGSEGV), but it doesn't seem very useful and
we'd need to pick a random retval as there's no meaningful syscall
retval that would differentiate from SIGSEGV and SIGBUS, there's just
-EFAULT.
Link: http://lkml.kernel.org/r/20171016223914.2421-2-aarcange@redhat.com
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ingo Molnar [Fri, 3 Nov 2017 11:30:12 +0000 (12:30 +0100)]
Merge branch 'linus' into perf/urgent, to pick up dependent commits
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Bird, Timothy [Thu, 2 Nov 2017 20:30:46 +0000 (20:30 +0000)]
Documentation: Add Tim Bird to list of enforcement statement endorsers
Add my name to the list.
Signed-off-by: Tim Bird <tim.bird@sony.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Florian Fainelli [Thu, 2 Nov 2017 23:08:40 +0000 (16:08 -0700)]
net: systemport: Correct IPG length settings
Due to a documentation mistake, the IPG length was set to 0x12 while it
should have been 12 (decimal). This would affect short packet (64B
typically) performance since the IPG was bigger than necessary.
Fixes:
44a4524c54af ("net: systemport: Add support for SYSTEMPORT Lite")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Thu, 2 Nov 2017 19:30:25 +0000 (12:30 -0700)]
tcp: do not mangle skb->cb[] in tcp_make_synack()
Christoph Paasch sent a patch to address the following issue :
tcp_make_synack() is leaving some TCP private info in skb->cb[],
then send the packet by other means than tcp_transmit_skb()
tcp_transmit_skb() makes sure to clear skb->cb[] to not confuse
IPv4/IPV6 stacks, but we have no such cleanup for SYNACK.
tcp_make_synack() should not use tcp_init_nondata_skb() :
tcp_init_nondata_skb() really should be limited to skbs put in write/rtx
queues (the ones that are only sent via tcp_transmit_skb())
This patch fixes the issue and should even save few cpu cycles ;)
Fixes:
971f10eca186 ("tcp: better TCP_SKB_CB layout to reduce cache line misses")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Christoph Paasch <cpaasch@apple.com>
Reviewed-by: Christoph Paasch <cpaasch@apple.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Westphal [Thu, 2 Nov 2017 15:02:20 +0000 (16:02 +0100)]
fib: fib_dump_info can no longer use __in_dev_get_rtnl
syzbot reported yet another regression added with DOIT_UNLOCKED.
When nexthop is marked as dead, fib_dump_info uses __in_dev_get_rtnl():
./include/linux/inetdevice.h:230 suspicious rcu_dereference_protected() usage!
rcu_scheduler_active = 2, debug_locks = 1
1 lock held by syz-executor2/23859:
#0: (rcu_read_lock){....}, at: [<
ffffffff840283f0>]
inet_rtm_getroute+0xaa0/0x2d70 net/ipv4/route.c:2738
[..]
lockdep_rcu_suspicious+0x123/0x170 kernel/locking/lockdep.c:4665
__in_dev_get_rtnl include/linux/inetdevice.h:230 [inline]
fib_dump_info+0x1136/0x13d0 net/ipv4/fib_semantics.c:1377
inet_rtm_getroute+0xf97/0x2d70 net/ipv4/route.c:2785
..
This isn't safe anymore, callers either hold RTNL mutex or rcu read lock,
so these spots must use rcu_dereference_rtnl() or plain rcu_derefence()
(plus unconditional rcu read lock).
This does the latter.
Fixes:
394f51abb3d04f ("ipv4: route: set ipv4 RTM_GETROUTE to not use rtnl")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Bhadram Varka [Thu, 2 Nov 2017 07:22:13 +0000 (12:52 +0530)]
stmmac: use of_property_read_u32 instead of read_u8
Numbers in DT are stored in “cells” which are 32-bits
in size. of_property_read_u8 does not work properly
because of endianness problem.
This causes it to always return 0 with little-endian
architectures.
Fix it by using of_property_read_u32() OF API.
Signed-off-by: Bhadram Varka <vbhadram@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 3 Nov 2017 01:30:39 +0000 (10:30 +0900)]
Merge branch 'net-sched-use-after-free'
Cong Wang says:
====================
net_sched: fix a use-after-free for tc actions
This patchset fixes a use-after-free reported by Lucas
and closes potential races too.
Please see each patch for details.
====================
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cong Wang [Wed, 1 Nov 2017 17:23:50 +0000 (10:23 -0700)]
net_sched: hold netns refcnt for each action
TC actions have been destroyed asynchronously for a long time,
previously in a RCU callback and now in a workqueue. If we
don't hold a refcnt for its netns, we could use the per netns
data structure, struct tcf_idrinfo, after it has been freed by
netns workqueue.
Hold refcnt to ensure netns destroy happens after all actions
are gone.
Fixes:
ddf97ccdd7cb ("net_sched: add network namespace support for tc actions")
Reported-by: Lucas Bates <lucasb@mojatatu.com>
Tested-by: Lucas Bates <lucasb@mojatatu.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cong Wang [Wed, 1 Nov 2017 17:23:49 +0000 (10:23 -0700)]
net_sched: acquire RTNL in tc_action_net_exit()
I forgot to acquire RTNL in tc_action_net_exit()
which leads that action ops->cleanup() is not always
called with RTNL. This usually is not a big deal because
this function is called after all netns refcnt are gone,
but given RTNL protects more than just actions, add it
for safety and consistency.
Also add an assertion to catch other potential bugs.
Fixes:
ddf97ccdd7cb ("net_sched: add network namespace support for tc actions")
Reported-by: Lucas Bates <lucasb@mojatatu.com>
Tested-by: Lucas Bates <lucasb@mojatatu.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Madhavan Srinivasan [Thu, 2 Nov 2017 12:12:26 +0000 (17:42 +0530)]
powerpc/perf: Fix core-imc hotplug callback failure during imc initialization
Call trace observed during boot:
nest_capp0_imc performance monitor hardware support registered
nest_capp1_imc performance monitor hardware support registered
core_imc memory allocation for cpu 56 failed
Unable to handle kernel paging request for data at address 0xffa400010
Faulting instruction address: 0xc000000000bf3294
0:mon> e
cpu 0x0: Vector: 300 (Data Access) at [
c000000ff38ff8d0]
pc:
c000000000bf3294: mutex_lock+0x34/0x90
lr:
c000000000bf3288: mutex_lock+0x28/0x90
sp:
c000000ff38ffb50
msr:
9000000002009033
dar:
ffa400010
dsisr: 80000
current = 0xc000000ff383de00
paca = 0xc000000007ae0000 softe: 0 irq_happened: 0x01
pid = 13, comm = cpuhp/0
Linux version 4.11.0-39.el7a.ppc64le (mockbuild@ppc-058.build.eng.bos.redhat.com) (gcc version 4.8.5
20150623 (Red Hat 4.8.5-16) (GCC) ) #1 SMP Tue Oct 3 07:42:44 EDT 2017
0:mon> t
[
c000000ff38ffb80]
c0000000002ddfac perf_pmu_migrate_context+0xac/0x470
[
c000000ff38ffc40]
c00000000011385c ppc_core_imc_cpu_offline+0x1ac/0x1e0
[
c000000ff38ffc90]
c000000000125758 cpuhp_invoke_callback+0x198/0x5d0
[
c000000ff38ffd00]
c00000000012782c cpuhp_thread_fun+0x8c/0x3d0
[
c000000ff38ffd60]
c0000000001678d0 smpboot_thread_fn+0x290/0x2a0
[
c000000ff38ffdc0]
c00000000015ee78 kthread+0x168/0x1b0
[
c000000ff38ffe30]
c00000000000b368 ret_from_kernel_thread+0x5c/0x74
While registering the cpuhoplug callbacks for core-imc, if we fails
in the cpuhotplug online path for any random core (either because opal call to
initialize the core-imc counters fails or because memory allocation fails for
that core), ppc_core_imc_cpu_offline() will get invoked for other cpus who
successfully returned from cpuhotplug online path.
But in the ppc_core_imc_cpu_offline() path we are trying to migrate the event
context, when core-imc counters are not even initialized. Thus creating the
above stack dump.
Add a check to see if core-imc counters are enabled or not in the cpuhotplug
offline path before migrating the context to handle this failing scenario.
Fixes:
885dcd709ba9 ("powerpc/perf: Add nest IMC PMU support")
Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Signed-off-by: Anju T Sudhakar <anju@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Linus Torvalds [Thu, 2 Nov 2017 21:10:37 +0000 (14:10 -0700)]
Kbuild: don't pass "-C" to preprocessor when processing linker scripts
For some odd historical reason, we preprocessed the linker scripts with
"-C", which keeps comments around. That makes no sense, since the
comments are not meaningful for the build anyway.
And it actually breaks things, since linker scripts can't have C++ style
"//" comments in them, so keeping comments after preprocessing now
limits us in odd and surprising ways in our header files for no good
reason.
The -C option goes back to pre-git and pre-bitkeeper times, but seems to
have been historically used (along with "-traditional") for some
odd-ball architectures (ia64, MIPS and SH). It probably didn't matter
back then either, but might possibly have been used to minimize the
difference between the original file and the pre-processed result.
The reason for this may be lost in time, but let's not perpetuate it
only because we can't remember why we did this crazy thing.
This was triggered by the recent addition of SPDX lines to the source
tree, where people apparently were confused about why header files
couldn't use the C++ comment format.
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Greg KH <gregkh@linuxfoundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 2 Nov 2017 21:06:32 +0000 (14:06 -0700)]
Revert "x86: do not use cpufreq_quick_get() for /proc/cpuinfo "cpu MHz""
This reverts commit
51204e0639c49ada02fd823782ad673b6326d748.
There wasn't really any good reason for it, and people are complaining
(rightly) that it broke existing practice.
Cc: Len Brown <len.brown@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 2 Nov 2017 19:01:26 +0000 (12:01 -0700)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux
Pull arm64 fix from Catalin Marinas:
"Check addr_limit in arm64 __dump_instr()"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: ensure __dump_instr() checks addr_limit
Mark Rutland [Thu, 2 Nov 2017 16:12:03 +0000 (16:12 +0000)]
arm64: ensure __dump_instr() checks addr_limit
It's possible for a user to deliberately trigger __dump_instr with a
chosen kernel address.
Let's avoid problems resulting from this by using get_user() rather than
__get_user(), ensuring that we don't erroneously access kernel memory.
Where we use __dump_instr() on kernel text, we already switch to
KERNEL_DS, so this shouldn't adversely affect those cases.
Fixes:
60ffc30d5652810d ("arm64: Exception handling")
Cc: stable@vger.kernel.org
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Paolo Bonzini [Thu, 2 Nov 2017 17:37:42 +0000 (18:37 +0100)]
Merge tag 'kvm-arm-fixes-for-v4.14' of git://git./linux/kernel/git/kvmarm/kvmarm into kvm-master
KVM/ARM Fixes for v4.14
- Fixes a number of issues with saving/restoring the ITS
- Fixes a bug in KVM/ARM when branch profiling is enabled in Hyp mode
- Fixes an emulation bug for 32-bit guests when injecting aborts
- Fixes a failure to check if a kmalloc succeeds in the ITS emulation
Jan H. Schönherr [Wed, 25 Oct 2017 14:43:27 +0000 (16:43 +0200)]
KVM: x86: Update APICv on APIC reset
In kvm_apic_set_state() we update the hardware virtualized APIC after
the full APIC state has been overwritten. Do the same, when the full
APIC state has been reset in kvm_lapic_reset().
This updates some hardware state that was previously forgotten, as
far as I can tell. Also, this allows removing some APIC-related reset
code from vmx_vcpu_reset().
Signed-off-by: Jan H. Schönherr <jschoenh@amazon.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Jan H. Schönherr [Wed, 25 Oct 2017 14:43:26 +0000 (16:43 +0200)]
KVM: VMX: Do not fully reset PI descriptor on vCPU reset
Parts of the posted interrupt descriptor configure host behavior,
such as the notification vector and destination. Overwriting them
with zero as done during vCPU reset breaks posted interrupts.
KVM (re-)writes these fields on certain occasions and belatedly fixes
the situation in many cases. However, if you have a guest configured
with "idle=poll", for example, the fields might stay zero forever.
Do not reset the full descriptor in vmx_vcpu_reset(). Instead,
reset only the outstanding notifications and leave everything
else untouched.
Signed-off-by: Jan H. Schönherr <jschoenh@amazon.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Jason Gunthorpe [Tue, 31 Oct 2017 20:28:09 +0000 (14:28 -0600)]
kvm: Return -ENODEV from update_persistent_clock
kvm does not support setting the RTC, so the correct result is -ENODEV.
Returning -1 will cause sync_cmos_clock to keep trying to set the RTC
every second.
Signed-off-by: Jason Gunthorpe <jgg@ziepe.ca>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Linus Torvalds [Thu, 2 Nov 2017 17:04:46 +0000 (10:04 -0700)]
Merge tag 'spdx_identifiers-4.14-rc8' of git://git./linux/kernel/git/gregkh/driver-core
Pull initial SPDX identifiers from Greg KH:
"License cleanup: add SPDX license identifiers to some files
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.
By default all files without license information are under the default
license of the kernel, which is GPL version 2.
Update the files which contain no license information with the
'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally
binding shorthand, which can be used instead of the full boiler plate
text.
This patch is based on work done by Thomas Gleixner and Kate Stewart
and Philippe Ombredanne.
How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset
of the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,
Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to
license had to be inferred by heuristics based on keywords.
The analysis to determine which SPDX License Identifier to be applied
to a file was done in a spreadsheet of side by side results from of
the output of two independent scanners (ScanCode & Windriver)
producing SPDX tag:value files created by Philippe Ombredanne.
Philippe prepared the base worksheet, and did an initial spot review
of a few 1000 files.
The 4.13 kernel was the starting point of the analysis with 60,537
files assessed. Kate Stewart did a file by file comparison of the
scanner results in the spreadsheet to determine which SPDX license
identifier(s) to be applied to the file. She confirmed any
determination that was not immediately clear with lawyers working with
the Linux Foundation.
Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained
>5 lines of source
- File already had some variant of a license header in it (even if <5
lines).
All documentation files were explicitly excluded.
The following heuristics were used to determine which SPDX license
identifiers to apply.
- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.
For non */uapi/* files that summary was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139
and resulted in the first patch in this series.
If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that
was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930
and resulted in the second patch in this series.
- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:
SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1
and that resulted in the third patch in this series.
- when the two scanners agreed on the detected license(s), that
became the concluded license(s).
- when there was disagreement between the two scanners (one detected
a license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.
- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply
(and which scanner probably needed to revisit its heuristics).
- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.
- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.
In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases,
confirmation by lawyers working with the Linux Foundation.
Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.
The Windriver scanner is based on an older version of FOSSology in
part, so they are related.
Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot
checks in about 15000 files.
In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect
the correct identifier.
Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial
patch version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch
license was not GPL-2.0 WITH Linux-syscall-note to ensure that the
applied SPDX license was correct
This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.
These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'spdx_identifiers-4.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
License cleanup: add SPDX license identifier to uapi header files with a license
License cleanup: add SPDX license identifier to uapi header files with no license
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Linus Torvalds [Thu, 2 Nov 2017 16:33:23 +0000 (09:33 -0700)]
Merge tag 'linux-kselftest-4.14-rc7' of git://git./linux/kernel/git/shuah/linux-kselftest
Pull kselftest fix from Shuah Khan:
"This consists of a single fix to a regression to printing individual
test results to the console. An earlier commit changed it to printing
just the summary of results, which will negatively impact users that
rely on console log to look at the individual test failures.
This fix makes it optional to print summary and by default results get
printed to the console"
* tag 'linux-kselftest-4.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests: lib.mk: print individual test results to console by default
Linus Torvalds [Thu, 2 Nov 2017 14:45:48 +0000 (07:45 -0700)]
Merge tag 'sound-4.14-rc8' of git://git./linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Unfortunately we still have received a significant amount of changes
at the late stage, but at least all are small and clear fixes.
There are two fixes for ALSA core stuff, yet another timer race fix
and sequencer lockdep annotation fix. Both are spotted by syzkaller,
and not too serious but better to paper over quickly.
All other commits are about ASoC drivers, most notably, a revert of
RT5514 hotword control that was included in 4.14-rc (due to a kind of
abuse of kctl TLV ABI), together with topology API fixes and other
device-specific small fixes that should go for stable, too"
* tag 'sound-4.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: seq: Fix nested rwsem annotation for lockdep splat
ALSA: timer: Add missing mutex lock for compat ioctls
ASoC: rt5616: fix 0x91 default value
ASoC: rt5659: connect LOUT Amp with Charge Pump
ASoC: rt5659: register power bit of LOUT Amp
ASoC: rt5663: Change the dev getting function in rt5663_irq
ASoC: rt5514: Revert Hotword Model control
ASoC: topology: Fix a potential memory leak in 'soc_tplg_dapm_widget_denum_create()'
ASoC: topology: Fix a potential NULL pointer dereference in 'soc_tplg_dapm_widget_denum_create()'
ASoC: rt5514-spi: check irq status to schedule data copy
ASoC: adau17x1: Workaround for noise bug in ADC
Linus Torvalds [Thu, 2 Nov 2017 14:43:40 +0000 (07:43 -0700)]
Merge branch 'fixes-v4.14-rc7' of git://git./linux/kernel/git/jmorris/linux-security
Pull key handling fixes from James Morris:
"Fixes for the Keys subsystem by Eric Biggers"
* 'fixes-v4.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
KEYS: fix out-of-bounds read during ASN.1 parsing
KEYS: trusted: fix writing past end of buffer in trusted_read()
KEYS: return full count in keyring_read() if buffer is too small
Jiri Slaby [Mon, 23 Oct 2017 11:41:51 +0000 (13:41 +0200)]
futex: futex_wake_op, do not fail on invalid op
In commit
30d6e0a4190d ("futex: Remove duplicated code and fix undefined
behaviour"), I let FUTEX_WAKE_OP to fail on invalid op. Namely when op
should be considered as shift and the shift is out of range (< 0 or > 31).
But strace's test suite does this madness:
futex(0x7fabd78bcffc, 0x5, 0xfacefeed, 0xb, 0x7fabd78bcffc, 0xa0caffee);
futex(0x7fabd78bcffc, 0x5, 0xfacefeed, 0xb, 0x7fabd78bcffc, 0xbadfaced);
futex(0x7fabd78bcffc, 0x5, 0xfacefeed, 0xb, 0x7fabd78bcffc, 0xffffffff);
When I pick the first 0xa0caffee, it decodes as:
0x80000000 & 0xa0caffee: oparg is shift
0x70000000 & 0xa0caffee: op is FUTEX_OP_OR
0x0f000000 & 0xa0caffee: cmp is FUTEX_OP_CMP_EQ
0x00fff000 & 0xa0caffee: oparg is sign-extended 0xcaf = -849
0x00000fff & 0xa0caffee: cmparg is sign-extended 0xfee = -18
That means the op tries to do this:
(futex |= (1 << (-849))) == -18
which is completely bogus. The new check of op in the code is:
if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28)) {
if (oparg < 0 || oparg > 31)
return -EINVAL;
oparg = 1 << oparg;
}
which results obviously in the "Invalid argument" errno:
FAIL: futex
===========
futex(0x7fabd78bcffc, 0x5, 0xfacefeed, 0xb, 0x7fabd78bcffc, 0xa0caffee) = -1: Invalid argument
futex.test: failed test: ../futex failed with code 1
So let us soften the failure to print only a (ratelimited) message, crop
the value and continue as if it were right. When userspace keeps up, we
can switch this to return -EINVAL again.
[v2] Do not return 0 immediatelly, proceed with the cropped value.
Fixes:
30d6e0a4190d ("futex: Remove duplicated code and fix undefined behaviour")
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Darren Hart <dvhart@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Marcin Nowakowski [Thu, 2 Nov 2017 10:45:11 +0000 (11:45 +0100)]
MIPS: Update email address for Marcin Nowakowski
MIPS is no longer part of Imagination Technologies and my @imgtec.com
address will soon stop working. Update any files containing my address
as well as the .mailmap to point to my new @mips.com address.
Signed-off-by: Marcin Nowakowski <marcin.nowakowski@mips.com>
Patchwork: https://patchwork.linux-mips.org/patch/17579/
Signed-off-by: James Hogan <jhogan@kernel.org>
Greg Kroah-Hartman [Wed, 1 Nov 2017 14:09:13 +0000 (15:09 +0100)]
License cleanup: add SPDX license identifier to uapi header files with a license
Many user space API headers have licensing information, which is either
incomplete, badly formatted or just a shorthand for referring to the
license under which the file is supposed to be. This makes it hard for
compliance tools to determine the correct license.
Update these files with an SPDX license identifier. The identifier was
chosen based on the license information in the file.
GPL/LGPL licensed headers get the matching GPL/LGPL SPDX license
identifier with the added 'WITH Linux-syscall-note' exception, which is
the officially assigned exception identifier for the kernel syscall
exception:
NOTE! This copyright does *not* cover user programs that use kernel
services by normal system calls - this is merely considered normal use
of the kernel, and does *not* fall under the heading of "derived work".
This exception makes it possible to include GPL headers into non GPL
code, without confusing license compliance tools.
Headers which have either explicit dual licensing or are just licensed
under a non GPL license are updated with the corresponding SPDX
identifier and the GPLv2 with syscall exception identifier. The format
is:
((GPL-2.0 WITH Linux-syscall-note) OR SPDX-ID-OF-OTHER-LICENSE)
SPDX license identifiers are a legally binding shorthand, which can be
used instead of the full boiler plate text. The update does not remove
existing license information as this has to be done on a case by case
basis and the copyright holders might have to be consulted. This will
happen in a separate step.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne. See the previous patch in this series for the
methodology of how this patch was researched.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Greg Kroah-Hartman [Wed, 1 Nov 2017 14:08:43 +0000 (15:08 +0100)]
License cleanup: add SPDX license identifier to uapi header files with no license
Many user space API headers are missing licensing information, which
makes it hard for compliance tools to determine the correct license.
By default are files without license information under the default
license of the kernel, which is GPLV2. Marking them GPLV2 would exclude
them from being included in non GPLV2 code, which is obviously not
intended. The user space API headers fall under the syscall exception
which is in the kernels COPYING file:
NOTE! This copyright does *not* cover user programs that use kernel
services by normal system calls - this is merely considered normal use
of the kernel, and does *not* fall under the heading of "derived work".
otherwise syscall usage would not be possible.
Update the files which contain no license information with an SPDX
license identifier. The chosen identifier is 'GPL-2.0 WITH
Linux-syscall-note' which is the officially assigned identifier for the
Linux syscall exception. SPDX license identifiers are a legally binding
shorthand, which can be used instead of the full boiler plate text.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne. See the previous patch in this series for the
methodology of how this patch was researched.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Greg Kroah-Hartman [Wed, 1 Nov 2017 14:07:57 +0000 (15:07 +0100)]
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.
By default all files without license information are under the default
license of the kernel, which is GPL version 2.
Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.
How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,
Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.
The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.
The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.
Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if <5
lines).
All documentation files were explicitly excluded.
The following heuristics were used to determine which SPDX license
identifiers to apply.
- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.
For non */uapi/* files that summary was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139
and resulted in the first patch in this series.
If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930
and resulted in the second patch in this series.
- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:
SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1
and that resulted in the third patch in this series.
- when the two scanners agreed on the detected license(s), that became
the concluded license(s).
- when there was disagreement between the two scanners (one detected a
license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.
- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply (and
which scanner probably needed to revisit its heuristics).
- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.
- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.
In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.
Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights. The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.
Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.
In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.
Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch license
was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
SPDX license was correct
This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.
These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Eric Biggers [Thu, 2 Nov 2017 00:47:19 +0000 (00:47 +0000)]
KEYS: fix out-of-bounds read during ASN.1 parsing
syzkaller with KASAN reported an out-of-bounds read in
asn1_ber_decoder(). It can be reproduced by the following command,
assuming CONFIG_X509_CERTIFICATE_PARSER=y and CONFIG_KASAN=y:
keyctl add asymmetric desc $'\x30\x30' @s
The bug is that the length of an ASN.1 data value isn't validated in the
case where it is encoded using the short form, causing the decoder to
read past the end of the input buffer. Fix it by validating the length.
The bug report was:
BUG: KASAN: slab-out-of-bounds in asn1_ber_decoder+0x10cb/0x1730 lib/asn1_decoder.c:233
Read of size 1 at addr
ffff88003cccfa02 by task syz-executor0/6818
CPU: 1 PID: 6818 Comm: syz-executor0 Not tainted 4.14.0-rc7-00008-g5f479447d983 #2
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:16 [inline]
dump_stack+0xb3/0x10b lib/dump_stack.c:52
print_address_description+0x79/0x2a0 mm/kasan/report.c:252
kasan_report_error mm/kasan/report.c:351 [inline]
kasan_report+0x236/0x340 mm/kasan/report.c:409
__asan_report_load1_noabort+0x14/0x20 mm/kasan/report.c:427
asn1_ber_decoder+0x10cb/0x1730 lib/asn1_decoder.c:233
x509_cert_parse+0x1db/0x650 crypto/asymmetric_keys/x509_cert_parser.c:89
x509_key_preparse+0x64/0x7a0 crypto/asymmetric_keys/x509_public_key.c:174
asymmetric_key_preparse+0xcb/0x1a0 crypto/asymmetric_keys/asymmetric_type.c:388
key_create_or_update+0x347/0xb20 security/keys/key.c:855
SYSC_add_key security/keys/keyctl.c:122 [inline]
SyS_add_key+0x1cd/0x340 security/keys/keyctl.c:62
entry_SYSCALL_64_fastpath+0x1f/0xbe
RIP: 0033:0x447c89
RSP: 002b:
00007fca7a5d3bd8 EFLAGS:
00000246 ORIG_RAX:
00000000000000f8
RAX:
ffffffffffffffda RBX:
00007fca7a5d46cc RCX:
0000000000447c89
RDX:
0000000020006f4a RSI:
0000000020006000 RDI:
0000000020001ff5
RBP:
0000000000000046 R08:
fffffffffffffffd R09:
0000000000000000
R10:
0000000000000002 R11:
0000000000000246 R12:
0000000000000000
R13:
0000000000000000 R14:
00007fca7a5d49c0 R15:
00007fca7a5d4700
Fixes:
42d5ec27f873 ("X.509: Add an ASN.1 decoder")
Cc: <stable@vger.kernel.org> # v3.7+
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
Eric Biggers [Thu, 2 Nov 2017 00:47:12 +0000 (00:47 +0000)]
KEYS: trusted: fix writing past end of buffer in trusted_read()
When calling keyctl_read() on a key of type "trusted", if the
user-supplied buffer was too small, the kernel ignored the buffer length
and just wrote past the end of the buffer, potentially corrupting
userspace memory. Fix it by instead returning the size required, as per
the documentation for keyctl_read().
We also don't even fill the buffer at all in this case, as this is
slightly easier to implement than doing a short read, and either
behavior appears to be permitted. It also makes it match the behavior
of the "encrypted" key type.
Fixes:
d00a1c72f7f4 ("keys: add new trusted key-type")
Reported-by: Ben Hutchings <ben@decadent.org.uk>
Cc: <stable@vger.kernel.org> # v2.6.38+
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Reviewed-by: James Morris <james.l.morris@oracle.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
Eric Biggers [Thu, 2 Nov 2017 00:47:03 +0000 (00:47 +0000)]
KEYS: return full count in keyring_read() if buffer is too small
Commit
e645016abc80 ("KEYS: fix writing past end of user-supplied buffer
in keyring_read()") made keyring_read() stop corrupting userspace memory
when the user-supplied buffer is too small. However it also made the
return value in that case be the short buffer size rather than the size
required, yet keyctl_read() is actually documented to return the size
required. Therefore, switch it over to the documented behavior.
Note that for now we continue to have it fill the short buffer, since it
did that before (pre-v3.13) and dump_key_tree_aux() in keyutils arguably
relies on it.
Fixes:
e645016abc80 ("KEYS: fix writing past end of user-supplied buffer in keyring_read()")
Reported-by: Ben Hutchings <ben@decadent.org.uk>
Cc: <stable@vger.kernel.org> # v3.13+
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: James Morris <james.l.morris@oracle.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
David S. Miller [Thu, 2 Nov 2017 07:52:41 +0000 (16:52 +0900)]
Merge git://git./pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains two one-liner fixes for your net tree,
they are:
1) Disable fast hash operations for 2-bytes length keys which is leading
to incorrect lookups in nf_tables, from Anatole Denis.
2) Reload pointer ipv4 header after ip_route_me_harder() given this may
result in use-after-free due to skbuff header reallocation, patch
from Tejaswi Tanikella.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Jeff Barnhill [Wed, 1 Nov 2017 14:58:09 +0000 (14:58 +0000)]
net: vrf: correct FRA_L3MDEV encode type
FRA_L3MDEV is defined as U8, but is being added as a U32 attribute. On
big endian architecture, this results in the l3mdev entry not being
added to the FIB rules.
Fixes:
1aa6c4f6b8cd8 ("net: vrf: Add l3mdev rules on first device create")
Signed-off-by: Jeff Barnhill <0xeffeff@gmail.com>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Konstantin Khlebnikov [Wed, 1 Nov 2017 13:32:15 +0000 (16:32 +0300)]
tcp_nv: fix division by zero in tcpnv_acked()
Average RTT could become zero. This happened in real life at least twice.
This patch treats zero as 1us.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Acked-by: Lawrence Brakmo <Brakmo@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dave Airlie [Thu, 2 Nov 2017 04:40:12 +0000 (14:40 +1000)]
Merge branch 'drm-fixes-4.14' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
Just two small patches for stable to fix the driver failing to load on polaris
cards with harvested VCE or UVD blocks.
* 'drm-fixes-4.14' of git://people.freedesktop.org/~agd5f/linux:
drm/amdgpu: allow harvesting check for Polaris VCE
drm/amdgpu: return -ENOENT from uvd 6.0 early init for harvesting
Leo Liu [Wed, 1 Nov 2017 01:12:35 +0000 (21:12 -0400)]
drm/amdgpu: allow harvesting check for Polaris VCE
Fixes init failures on Polaris cards with harvested
VCE blocks.
Signed-off-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Leo Liu [Wed, 1 Nov 2017 01:03:39 +0000 (21:03 -0400)]
drm/amdgpu: return -ENOENT from uvd 6.0 early init for harvesting
Fixes init failures on polaris cards with harvested UVD.
Signed-off-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Dave Airlie [Thu, 2 Nov 2017 01:33:57 +0000 (11:33 +1000)]
Merge tag 'drm-intel-fixes-2017-11-01' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
Fixes for Stable:
- Fix KBL Blank Screen (Jani)
- Fix FIFO Underrun on SNB (Maarten)
Other fixes:
- Fix GPU Hang on i915gm (Chris)
- Fix gem_tiled_pread_pwrite IGT case (Chris)
- Cancel modeset retry work during modeset clean-up (Manasi)
* tag 'drm-intel-fixes-2017-11-01' of git://anongit.freedesktop.org/drm/drm-intel:
drm/i915: Check incoming alignment for unfenced buffers (on i915gm)
drm/i915: Hold rcu_read_lock when iterating over the radixtree (vma idr)
drm/i915: Hold rcu_read_lock when iterating over the radixtree (objects)
drm/i915/edp: read edp display control registers unconditionally
drm/i915: Do not rely on wm preservation for ILK watermarks
drm/i915: Cancel the modeset retry work during modeset cleanup