commit f227e3ec3b upstream.
This modifies the first 32 bits out of the 128 bits of a random CPU's
net_rand_state on interrupt or CPU activity to complicate remote
observations that could lead to guessing the network RNG's internal
state.
Note that depending on some network devices' interrupt rate moderation
or binding, this re-seeding might happen on every packet or even almost
never.
In addition, with NOHZ some CPUs might not even get timer interrupts,
leaving their local state rarely updated, while they are running
networked processes making use of the random state. For this reason, we
also perform this update in update_process_times() in order to at least
update the state when there is user or system activity, since it's the
only case we care about.
Reported-by: Amit Klein <aksecurity@gmail.com>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Eric Dumazet <edumazet@google.com>
Cc: "Jason A. Donenfeld" <Jason@zx2c4.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit e2a71bdea8 upstream.
When an expiration delta falls into the last level of the wheel, that delta
has be compared against the maximum possible delay and reduced to fit in if
necessary.
However instead of comparing the delta against the maximum, the code
compares the actual expiry against the maximum. Then instead of fixing the
delta to fit in, it sets the maximum delta as the expiry value.
This can result in various undesired outcomes, the worst possible one
being a timer expiring 15 days ahead to fire immediately.
Fixes: 500462a9de ("timers: Switch to a non-cascading wheel")
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20200717140551.29076-2-frederic@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit a33121e548 upstream.
In a case when a ptp chardev (like /dev/ptp0) is open but an underlying
device is removed, closing this file leads to a race. This reproduces
easily in a kvm virtual machine:
ts# cat openptp0.c
int main() { ... fp = fopen("/dev/ptp0", "r"); ... sleep(10); }
ts# uname -r
5.5.0-rc3-46cf053e
ts# cat /proc/cmdline
... slub_debug=FZP
ts# modprobe ptp_kvm
ts# ./openptp0 &
[1] 670
opened /dev/ptp0, sleeping 10s...
ts# rmmod ptp_kvm
ts# ls /dev/ptp*
ls: cannot access '/dev/ptp*': No such file or directory
ts# ...woken up
[ 48.010809] general protection fault: 0000 [#1] SMP
[ 48.012502] CPU: 6 PID: 658 Comm: openptp0 Not tainted 5.5.0-rc3-46cf053e #25
[ 48.014624] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), ...
[ 48.016270] RIP: 0010:module_put.part.0+0x7/0x80
[ 48.017939] RSP: 0018:ffffb3850073be00 EFLAGS: 00010202
[ 48.018339] RAX: 000000006b6b6b6b RBX: 6b6b6b6b6b6b6b6b RCX: ffff89a476c00ad0
[ 48.018936] RDX: fffff65a08d3ea08 RSI: 0000000000000247 RDI: 6b6b6b6b6b6b6b6b
[ 48.019470] ... ^^^ a slub poison
[ 48.023854] Call Trace:
[ 48.024050] __fput+0x21f/0x240
[ 48.024288] task_work_run+0x79/0x90
[ 48.024555] do_exit+0x2af/0xab0
[ 48.024799] ? vfs_write+0x16a/0x190
[ 48.025082] do_group_exit+0x35/0x90
[ 48.025387] __x64_sys_exit_group+0xf/0x10
[ 48.025737] do_syscall_64+0x3d/0x130
[ 48.026056] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 48.026479] RIP: 0033:0x7f53b12082f6
[ 48.026792] ...
[ 48.030945] Modules linked in: ptp i6300esb watchdog [last unloaded: ptp_kvm]
[ 48.045001] Fixing recursive fault but reboot is needed!
This happens in:
static void __fput(struct file *file)
{ ...
if (file->f_op->release)
file->f_op->release(inode, file); <<< cdev is kfree'd here
if (unlikely(S_ISCHR(inode->i_mode) && inode->i_cdev != NULL &&
!(mode & FMODE_PATH))) {
cdev_put(inode->i_cdev); <<< cdev fields are accessed here
Namely:
__fput()
posix_clock_release()
kref_put(&clk->kref, delete_clock) <<< the last reference
delete_clock()
delete_ptp_clock()
kfree(ptp) <<< cdev is embedded in ptp
cdev_put
module_put(p->owner) <<< *p is kfree'd, bang!
Here cdev is embedded in posix_clock which is embedded in ptp_clock.
The race happens because ptp_clock's lifetime is controlled by two
refcounts: kref and cdev.kobj in posix_clock. This is wrong.
Make ptp_clock's sysfs device a parent of cdev with cdev_device_add()
created especially for such cases. This way the parent device with its
ptp_clock is not released until all references to the cdev are released.
This adds a requirement that an initialized but not exposed struct
device should be provided to posix_clock_register() by a caller instead
of a simple dev_t.
This approach was adopted from the commit 72139dfa24 ("watchdog: Fix
the race between the release of watchdog_core_data and cdev"). See
details of the implementation in the commit 233ed09d7f ("chardev: add
helper function to register char devs with a struct device").
Link: https://lore.kernel.org/linux-fsdevel/20191125125342.6189-1-vdronov@redhat.com/T/#u
Analyzed-by: Stephen Johnston <sjohnsto@redhat.com>
Analyzed-by: Vern Lovejoy <vlovejoy@redhat.com>
Signed-off-by: Vladis Dronov <vdronov@redhat.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
commit febac332a8 upstream.
Kernel crashes inside QEMU/KVM are observed:
kernel BUG at kernel/time/timer.c:1154!
BUG_ON(timer_pending(timer) || !timer->function) in add_timer_on().
At the same time another cpu got:
general protection fault: 0000 [#1] SMP PTI of poinson pointer 0xdead000000000200 in:
__hlist_del at include/linux/list.h:681
(inlined by) detach_timer at kernel/time/timer.c:818
(inlined by) expire_timers at kernel/time/timer.c:1355
(inlined by) __run_timers at kernel/time/timer.c:1686
(inlined by) run_timer_softirq at kernel/time/timer.c:1699
Unfortunately kernel logs are badly scrambled, stacktraces are lost.
Printing the timer->function before the BUG_ON() pointed to
clocksource_watchdog().
The execution of clocksource_watchdog() can race with a sequence of
clocksource_stop_watchdog() .. clocksource_start_watchdog():
expire_timers()
detach_timer(timer, true);
timer->entry.pprev = NULL;
raw_spin_unlock_irq(&base->lock);
call_timer_fn
clocksource_watchdog()
clocksource_watchdog_kthread() or
clocksource_unbind()
spin_lock_irqsave(&watchdog_lock, flags);
clocksource_stop_watchdog();
del_timer(&watchdog_timer);
watchdog_running = 0;
spin_unlock_irqrestore(&watchdog_lock, flags);
spin_lock_irqsave(&watchdog_lock, flags);
clocksource_start_watchdog();
add_timer_on(&watchdog_timer, ...);
watchdog_running = 1;
spin_unlock_irqrestore(&watchdog_lock, flags);
spin_lock(&watchdog_lock);
add_timer_on(&watchdog_timer, ...);
BUG_ON(timer_pending(timer) || !timer->function);
timer_pending() -> true
BUG()
I.e. inside clocksource_watchdog() watchdog_timer could be already armed.
Check timer_pending() before calling add_timer_on(). This is sufficient as
all operations are synchronized by watchdog_lock.
Fixes: 75c5158f70 ("timekeeping: Update clocksource with stop_machine")
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/158048693917.4378.13823603769948933793.stgit@buzz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit e430d802d6 upstream.
The timer delayed for more than 3 seconds warning was triggered during
testing.
Workqueue: events_unbound sched_tick_remote
RIP: 0010:sched_tick_remote+0xee/0x100
...
Call Trace:
process_one_work+0x18c/0x3a0
worker_thread+0x30/0x380
kthread+0x113/0x130
ret_from_fork+0x22/0x40
The reason is that the code in collect_expired_timers() uses jiffies
unprotected:
if (next_event > jiffies)
base->clk = jiffies;
As the compiler is allowed to reload the value base->clk can advance
between the check and the store and in the worst case advance farther than
next event. That causes the timer expiry to be delayed until the wheel
pointer wraps around.
Convert the code to use READ_ONCE()
Fixes: 236968383c ("timers: Optimize collect_expired_timers() for NOHZ")
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Signed-off-by: Liang ZhiCheng <liangzhicheng@baidu.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/1568894687-14499-1-git-send-email-lirongqing@baidu.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit f18ddc13af upstream.
ENOTSUPP is not supposed to be returned to userspace. This was found on an
OpenPower machine, where the RTC does not support set_alarm.
On that system, a clock_nanosleep(CLOCK_REALTIME_ALARM, ...) results in
"524 Unknown error 524"
Replace it with EOPNOTSUPP which results in the expected "95 Operation not
supported" error.
Fixes: 1c6b39ad3f (alarmtimers: Return -ENOTSUPP if no RTC device is present)
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20190903171802.28314-1-cascardo@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit d897a4ab11 ]
Don't allow the TAI-UTC offset of the system clock to be set by adjtimex()
to a value larger than 100000 seconds.
This prevents an overflow in the conversion to int, prevents the CLOCK_TAI
clock from getting too far ahead of the CLOCK_REALTIME clock, and it is
still large enough to allow leap seconds to be inserted at the maximum rate
currently supported by the kernel (once per day) for the next ~270 years,
however unlikely it is that someone can survive a catastrophic event which
slowed down the rotation of the Earth so much.
Reported-by: Weikang shi <swkhack@gmail.com>
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190618154713.20929-1-mlichvar@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit fdc6bae940 ]
The ADJ_TAI adjtimex mode sets the TAI-UTC offset of the system clock.
It is typically set by NTP/PTP implementations and it is automatically
updated by the kernel on leap seconds. The initial value is zero (which
applications may interpret as unknown), but this value cannot be set by
adjtimex. This limitation seems to go back to the original "nanokernel"
implementation by David Mills.
Change the ADJ_TAI check to accept zero as a valid TAI-UTC offset in
order to allow setting it back to the initial value.
Fixes: 153b5d054a ("ntp: support for TAI")
Suggested-by: Ondrej Mosnacek <omosnace@redhat.com>
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Link: https://lkml.kernel.org/r/20190417084833.7401-1-mlichvar@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
The timer_stats facility should filter and translate PIDs if opened
from a non-initial PID namespace, to avoid leaking information about
the wider system. It should also not show kernel virtual addresses.
Unfortunately it has now been removed upstream (as redundant)
instead of being fixed.
For stable, fix the leak by restricting access to root only. A
similar change was already made for the /proc/timer_list file.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
PD#SWPL-4150
Problem:
When switch to the toolchain shipped with android P, multipile
"-Werror=maybe-uninitialized" error occurs, and the code fail
to be compiled
Solution:
Initialize variables if necessary
Verify:
Locally on Ampere
Change-Id: I280de648914565656831e211539bf41a7dee2b4a
Signed-off-by: Jiamin Ma <jiamin.ma@amlogic.com>
[ Upstream commit 78c9c4dfbf ]
The posix timer overrun handling is broken because the forwarding functions
can return a huge number of overruns which does not fit in an int. As a
consequence timer_getoverrun(2) and siginfo::si_overrun can turn into
random number generators.
The k_clock::timer_forward() callbacks return a 64 bit value now. Make
k_itimer::ti_overrun[_last] 64bit as well, so the kernel internal
accounting is correct. 3Remove the temporary (int) casts.
Add a helper function which clamps the overrun value returned to user space
via timer_getoverrun(2) or siginfo::si_overrun limited to a positive value
between 0 and INT_MAX. INT_MAX is an indicator for user space that the
overrun value has been clamped.
Reported-by: Team OWL337 <icytxw@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: John Stultz <john.stultz@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Link: https://lkml.kernel.org/r/20180626132705.018623573@linutronix.de
[florian: Make patch apply to v4.9.135]
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 5f936e19cc ]
Air Icy reported:
UBSAN: Undefined behaviour in kernel/time/alarmtimer.c:811:7
signed integer overflow:
1529859276030040771 + 9223372036854775807 cannot be represented in type 'long long int'
Call Trace:
alarm_timer_nsleep+0x44c/0x510 kernel/time/alarmtimer.c:811
__do_sys_clock_nanosleep kernel/time/posix-timers.c:1235 [inline]
__se_sys_clock_nanosleep kernel/time/posix-timers.c:1213 [inline]
__x64_sys_clock_nanosleep+0x326/0x4e0 kernel/time/posix-timers.c:1213
do_syscall_64+0xb8/0x3a0 arch/x86/entry/common.c:290
alarm_timer_nsleep() uses ktime_add() to add the current time and the
relative expiry value. ktime_add() has no sanity checks so the addition
can overflow when the relative timeout is large enough.
Use ktime_add_safe() which has the necessary sanity checks in place and
limits the result to the valid range.
Fixes: 9a7adcf5c6 ("timers: Posix interface for alarm-timers")
Reported-by: Team OWL337 <icytxw@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: John Stultz <john.stultz@linaro.org>
Link: https://lkml.kernel.org/r/alpine.DEB.2.21.1807020926360.1595@nanos.tec.linutronix.de
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 363e934d88 ]
timer_base::must_forward_clock is indicating that the base clock might be
stale due to a long idle sleep.
The forwarding of the base clock takes place in the timer softirq or when a
timer is enqueued to a base which is idle. If the enqueue of timer to an
idle base happens from a remote CPU, then the following race can happen:
CPU0 CPU1
run_timer_softirq mod_timer
base = lock_timer_base(timer);
base->must_forward_clk = false
if (base->must_forward_clk)
forward(base); -> skipped
enqueue_timer(base, timer, idx);
-> idx is calculated high due to
stale base
unlock_timer_base(timer);
base = lock_timer_base(timer);
forward(base);
The root cause is that timer_base::must_forward_clk is cleared outside the
timer_base::lock held region, so the remote queuing CPU observes it as
cleared, but the base clock is still stale. This can cause large
granularity values for timers, i.e. the accuracy of the expiry time
suffers.
Prevent this by clearing the flag with timer_base::lock held, so that the
forwarding takes place before the cleared flag is observable by a remote
CPU.
Signed-off-by: Gaurav Kohli <gkohli@codeaurora.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: john.stultz@linaro.org
Cc: sboyd@kernel.org
Cc: linux-arm-msm@vger.kernel.org
Link: https://lkml.kernel.org/r/1533199863-22748-1-git-send-email-gkohli@codeaurora.org
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Changes in 4.9.111
x86/spectre_v1: Disable compiler optimizations over array_index_mask_nospec()
x86/mce: Improve error message when kernel cannot recover
x86/mce: Check for alternate indication of machine check recovery on Skylake
x86/mce: Fix incorrect "Machine check from unknown source" message
x86/mce: Do not overwrite MCi_STATUS in mce_no_way_out()
x86: Call fixup_exception() before notify_die() in math_error()
m68k/mm: Adjust VM area to be unmapped by gap size for __iounmap()
serial: sh-sci: Use spin_{try}lock_irqsave instead of open coding version
signal/xtensa: Consistenly use SIGBUS in do_unaligned_user
usb: do not reset if a low-speed or full-speed device timed out
1wire: family module autoload fails because of upper/lower case mismatch.
ASoC: dapm: delete dapm_kcontrol_data paths list before freeing it
ASoC: cirrus: i2s: Fix LRCLK configuration
ASoC: cirrus: i2s: Fix {TX|RX}LinCtrlData setup
clk: renesas: cpg-mssr: Stop using printk format %pCr
lib/vsprintf: Remove atomic-unsafe support for %pCr
mips: ftrace: fix static function graph tracing
branch-check: fix long->int truncation when profiling branches
ipmi:bt: Set the timeout before doing a capabilities check
Bluetooth: hci_qca: Avoid missing rampatch failure with userspace fw loader
fuse: atomic_o_trunc should truncate pagecache
fuse: don't keep dead fuse_conn at fuse_fill_super().
fuse: fix control dir setup and teardown
powerpc/mm/hash: Add missing isync prior to kernel stack SLB switch
powerpc/ptrace: Fix setting 512B aligned breakpoints with PTRACE_SET_DEBUGREG
powerpc/ptrace: Fix enforcement of DAWR constraints
powerpc/powernv/ioda2: Remove redundant free of TCE pages
cpuidle: powernv: Fix promotion from snooze if next state disabled
powerpc/fadump: Unregister fadump on kexec down path.
ARM: 8764/1: kgdb: fix NUMREGBYTES so that gdb_regs[] is the correct size
arm64: kpti: Use early_param for kpti= command-line option
arm64: mm: Ensure writes to swapper are ordered wrt subsequent cache maintenance
of: unittest: for strings, account for trailing \0 in property length field
IB/qib: Fix DMA api warning with debug kernel
IB/{hfi1, qib}: Add handling of kernel restart
IB/mlx5: Fetch soft WQE's on fatal error state
IB/isert: Fix for lib/dma_debug check_sync warning
IB/isert: fix T10-pi check mask setting
RDMA/mlx4: Discard unknown SQP work requests
mtd: cfi_cmdset_0002: Change write buffer to check correct value
mtd: cfi_cmdset_0002: Use right chip in do_ppb_xxlock()
mtd: cfi_cmdset_0002: fix SEGV unlocking multiple chips
mtd: cfi_cmdset_0002: Fix unlocking requests crossing a chip boudary
mtd: cfi_cmdset_0002: Avoid walking all chips when unlocking.
MIPS: BCM47XX: Enable 74K Core ExternalSync for PCIe erratum
PCI: Add ACS quirk for Intel 7th & 8th Gen mobile
PCI: Add ACS quirk for Intel 300 series
PCI: pciehp: Clear Presence Detect and Data Link Layer Status Changed on resume
printk: fix possible reuse of va_list variable
MIPS: io: Add barrier after register read in inX()
time: Make sure jiffies_to_msecs() preserves non-zero time periods
X.509: unpack RSA signatureValue field from BIT STRING
Btrfs: fix return value on rename exchange failure
Btrfs: fix unexpected cow in run_delalloc_nocow
iio:buffer: make length types match kfifo types
scsi: qla2xxx: Fix setting lower transfer speed if GPSC fails
scsi: zfcp: fix missing SCSI trace for result of eh_host_reset_handler
scsi: zfcp: fix missing SCSI trace for retry of abort / scsi_eh TMF
scsi: zfcp: fix misleading REC trigger trace where erp_action setup failed
scsi: zfcp: fix missing REC trigger trace on terminate_rport_io early return
scsi: zfcp: fix missing REC trigger trace on terminate_rport_io for ERP_FAILED
scsi: zfcp: fix missing REC trigger trace for all objects in ERP_FAILED
scsi: zfcp: fix missing REC trigger trace on enqueue without ERP thread
linvdimm, pmem: Preserve read-only setting for pmem devices
clk: at91: PLL recalc_rate() now using cached MUL and DIV values
md: fix two problems with setting the "re-add" device state.
rpmsg: smd: do not use mananged resources for endpoints and channels
ubi: fastmap: Cancel work upon detach
ubi: fastmap: Correctly handle interrupted erasures in EBA
UBIFS: Fix potential integer overflow in allocation
backlight: as3711_bl: Fix Device Tree node lookup
backlight: max8925_bl: Fix Device Tree node lookup
backlight: tps65217_bl: Fix Device Tree node lookup
mfd: intel-lpss: Program REMAP register in PIO mode
perf tools: Fix symbol and object code resolution for vdso32 and vdsox32
perf intel-pt: Fix sync_switch INTEL_PT_SS_NOT_TRACING
perf intel-pt: Fix decoding to accept CBR between FUP and corresponding TIP
perf intel-pt: Fix MTC timing after overflow
perf intel-pt: Fix "Unexpected indirect branch" error
perf intel-pt: Fix packet decoding of CYC packets
media: v4l2-compat-ioctl32: prevent go past max size
media: cx231xx: Add support for AverMedia DVD EZMaker 7
media: dvb_frontend: fix locking issues at dvb_frontend_get_event()
nfsd: restrict rd_maxcount to svc_max_payload in nfsd_encode_readdir
NFSv4: Fix possible 1-byte stack overflow in nfs_idmap_read_and_verify_message
NFSv4: Revert commit 5f83d86cf5 ("NFSv4.x: Fix wraparound issues..")
video: uvesafb: Fix integer overflow in allocation
Input: elan_i2c - add ELAN0618 (Lenovo v330 15IKB) ACPI ID
pwm: lpss: platform: Save/restore the ctrl register over a suspend/resume
rbd: flush rbd_dev->watch_dwork after watch is unregistered
mm: fix devmem_is_allowed() for sub-page System RAM intersections
xen: Remove unnecessary BUG_ON from __unbind_from_irq()
udf: Detect incorrect directory size
Input: elan_i2c_smbus - fix more potential stack buffer overflows
Input: elantech - enable middle button of touchpads on ThinkPad P52
Input: elantech - fix V4 report decoding for module with middle key
ALSA: hda/realtek - Fix pop noise on Lenovo P50 & co
ALSA: hda/realtek - Add a quirk for FSC ESPRIMO U9210
block: Fix transfer when chunk sectors exceeds max
dm thin: handle running out of data space vs concurrent discard
cdc_ncm: avoid padding beyond end of skb
Linux 4.9.111
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
commit abcbcb80cd upstream.
For the common cases where 1000 is a multiple of HZ, or HZ is a multiple of
1000, jiffies_to_msecs() never returns zero when passed a non-zero time
period.
However, if HZ > 1000 and not an integer multiple of 1000 (e.g. 1024 or
1200, as used on alpha and DECstation), jiffies_to_msecs() may return zero
for small non-zero time periods. This may break code that relies on
receiving back a non-zero value.
jiffies_to_usecs() does not need such a fix: one jiffy can only be less
than one µs if HZ > 1000000, and such large values of HZ are already
rejected at build time, twice:
- include/linux/jiffies.h does #error if HZ >= 12288,
- kernel/time/time.c has BUILD_BUG_ON(HZ > USEC_PER_SEC).
Broken since forever.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: linux-alpha@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20180622143357.7495-1-geert@linux-m68k.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Changes in 4.9.102
usbip: usbip_host: refine probe and disconnect debug msgs to be useful
usbip: usbip_host: delete device from busid_table after rebind
usbip: usbip_host: run rebind from exit when module is removed
usbip: usbip_host: fix NULL-ptr deref and use-after-free errors
usbip: usbip_host: fix bad unlock balance during stub_probe()
ALSA: usb: mixer: volume quirk for CM102-A+/102S+
ALSA: hda: Add Lenovo C50 All in one to the power_save blacklist
ALSA: control: fix a redundant-copy issue
spi: pxa2xx: Allow 64-bit DMA
spi: bcm-qspi: Avoid setting MSPI_CDRAM_PCS for spi-nor master
spi: bcm-qspi: Always read and set BSPI_MAST_N_BOOT_CTRL
KVM: arm/arm64: VGIC/ITS: protect kvm_read_guest() calls with SRCU lock
powerpc: Don't preempt_disable() in show_cpuinfo()
signals: avoid unnecessary taking of sighand->siglock
tracing/x86/xen: Remove zero data size trace events trace_xen_mmu_flush_tlb{_all}
netfilter: nf_tables: can't fail after linking rule into active rule list
i2c: designware: fix poll-after-enable regression
powerpc/powernv: Fix NVRAM sleep in invalid context when crashing
mm: don't allow deferred pages with NEED_PER_CPU_KM
s390/qdio: fix access to uninitialized qdio_q fields
s390/cpum_sf: ensure sample frequency of perf event attributes is non-zero
s390/qdio: don't release memory in qdio_setup_irq()
s390: remove indirect branch from do_softirq_own_stack
x86/pkeys: Override pkey when moving away from PROT_EXEC
x86/pkeys: Do not special case protection key 0
efi: Avoid potential crashes, fix the 'struct efi_pci_io_protocol_32' definition for mixed mode
ARM: 8771/1: kprobes: Prohibit kprobes on do_undefinstr
tick/broadcast: Use for_each_cpu() specially on UP kernels
ARM: 8769/1: kprobes: Fix to use get_kprobe_ctlblk after irq-disabed
ARM: 8770/1: kprobes: Prohibit probing on optimized_callback
ARM: 8772/1: kprobes: Prohibit kprobes on get_user functions
Btrfs: fix xattr loss after power failure
btrfs: fix crash when trying to resume balance without the resume flag
x86/amd: don't set X86_BUG_SYSRET_SS_ATTRS when running under Xen
btrfs: fix reading stale metadata blocks after degraded raid1 mounts
x86/nospec: Simplify alternative_msr_write()
x86/bugs: Concentrate bug detection into a separate function
x86/bugs: Concentrate bug reporting into a separate function
x86/bugs: Read SPEC_CTRL MSR during boot and re-use reserved bits
x86/bugs, KVM: Support the combination of guest and host IBRS
x86/bugs: Expose /sys/../spec_store_bypass
x86/cpufeatures: Add X86_FEATURE_RDS
x86/bugs: Provide boot parameters for the spec_store_bypass_disable mitigation
x86/bugs/intel: Set proper CPU features and setup RDS
x86/bugs: Whitelist allowed SPEC_CTRL MSR values
x86/bugs/AMD: Add support to disable RDS on Fam[15,16,17]h if requested
x86/KVM/VMX: Expose SPEC_CTRL Bit(2) to the guest
x86/speculation: Create spec-ctrl.h to avoid include hell
prctl: Add speculation control prctls
x86/process: Optimize TIF checks in __switch_to_xtra()
x86/process: Correct and optimize TIF_BLOCKSTEP switch
x86/process: Optimize TIF_NOTSC switch
x86/process: Allow runtime control of Speculative Store Bypass
x86/speculation: Add prctl for Speculative Store Bypass mitigation
nospec: Allow getting/setting on non-current task
proc: Provide details on speculation flaw mitigations
seccomp: Enable speculation flaw mitigations
x86/bugs: Make boot modes __ro_after_init
prctl: Add force disable speculation
seccomp: Use PR_SPEC_FORCE_DISABLE
seccomp: Add filter flag to opt-out of SSB mitigation
seccomp: Move speculation migitation control to arch code
x86/speculation: Make "seccomp" the default mode for Speculative Store Bypass
x86/bugs: Rename _RDS to _SSBD
proc: Use underscores for SSBD in 'status'
Documentation/spec_ctrl: Do some minor cleanups
x86/bugs: Fix __ssb_select_mitigation() return type
x86/bugs: Make cpu_show_common() static
x86/bugs: Fix the parameters alignment and missing void
x86/cpu: Make alternative_msr_write work for 32-bit code
KVM: SVM: Move spec control call after restore of GS
x86/speculation: Use synthetic bits for IBRS/IBPB/STIBP
x86/cpufeatures: Disentangle MSR_SPEC_CTRL enumeration from IBRS
x86/cpufeatures: Disentangle SSBD enumeration
x86/cpu/AMD: Fix erratum 1076 (CPB bit)
x86/cpufeatures: Add FEATURE_ZEN
x86/speculation: Handle HT correctly on AMD
x86/bugs, KVM: Extend speculation control for VIRT_SPEC_CTRL
x86/speculation: Add virtualized speculative store bypass disable support
x86/speculation: Rework speculative_store_bypass_update()
x86/bugs: Unify x86_spec_ctrl_{set_guest,restore_host}
x86/bugs: Expose x86_spec_ctrl_base directly
x86/bugs: Remove x86_spec_ctrl_set()
x86/bugs: Rework spec_ctrl base and mask logic
x86/speculation, KVM: Implement support for VIRT_SPEC_CTRL/LS_CFG
KVM: SVM: Implement VIRT_SPEC_CTRL support for SSBD
x86/bugs: Rename SSBD_NO to SSB_NO
Linux 4.9.102
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Changes in 4.9.90
tpm: fix potential buffer overruns caused by bit glitches on the bus
ASoC: rsnd: check src mod pointer for rsnd_mod_id()
SMB3: Validate negotiate request must always be signed
CIFS: Enable encryption during session setup phase
staging: android: ashmem: Fix possible deadlock in ashmem_ioctl
Revert "led: core: Fix brightness setting when setting delay_off=0"
led: core: Clear LED_BLINK_SW flag in led_blink_set()
platform/x86: asus-nb-wmi: Add wapf4 quirk for the X302UA
bonding: handle link transition from FAIL to UP correctly
regulator: anatop: set default voltage selector for pcie
power: supply: bq24190_charger: Limit over/under voltage fault logging
x86: i8259: export legacy_pic symbol
rtc: cmos: Do not assume irq 8 for rtc when there are no legacy irqs
Input: ar1021_i2c - fix too long name in driver's device table
time: Change posix clocks ops interfaces to use timespec64
ACPI/processor: Fix error handling in __acpi_processor_start()
ACPI/processor: Replace racy task affinity logic
cpufreq/sh: Replace racy task affinity logic
genirq: Use irqd_get_trigger_type to compare the trigger type for shared IRQs
i2c: i2c-scmi: add a MS HID
net: ipv6: send unsolicited NA on admin up
media/dvb-core: Race condition when writing to CAM
btrfs: fix a bogus warning when converting only data or metadata
ASoC: Intel: Atom: update Thinkpad 10 quirk
tools/testing/nvdimm: fix nfit_test shutdown crash
spi: dw: Disable clock after unregistering the host
powerpc/64s: Remove SAO feature from Power9 DD1
ath: Fix updating radar flags for coutry code India
clk: ns2: Correct SDIO bits
iwlwifi: split the handler and the wake parts of the notification infra
iwlwifi: a000: fix memory offsets and lengths
scsi: virtio_scsi: Always try to read VPD pages
KVM: PPC: Book3S PR: Exit KVM on failed mapping
mwifiex: don't leak 'chan_stats' on reset
x86/reboot: Turn off KVM when halting a CPU
ARM: 8668/1: ftrace: Fix dynamic ftrace with DEBUG_RODATA and !FRAME_POINTER
irqchip/mips-gic: Separate IPI reservation & usage tracking
iommu/omap: Register driver before setting IOMMU ops
md/raid10: wait up frozen array in handle_write_completed
NFS: Fix missing pg_cleanup after nfs_pageio_cond_complete()
tcp: remove poll() flakes with FastOpen
e1000e: fix timing for 82579 Gigabit Ethernet controller
ALSA: hda - Fix headset microphone detection for ASUS N551 and N751
IB/ipoib: Fix deadlock between ipoib_stop and mcast join flow
IB/ipoib: Update broadcast object if PKey value was changed in index 0
HSI: ssi_protocol: double free in ssip_pn_xmit()
IB/mlx4: Take write semaphore when changing the vma struct
IB/mlx4: Change vma from shared to private
IB/mlx5: Take write semaphore when changing the vma struct
IB/mlx5: Change vma from shared to private
IB/mlx5: Set correct SL in completion for RoCE
ASoC: Intel: Skylake: Uninitialized variable in probe_codec()
ibmvnic: Disable irq prior to close
netvsc: Deal with rescinded channels correctly
Fix driver usage of 128B WQEs when WQ_CREATE is V1.
Fix Express lane queue creation.
gpio: gpio-wcove: fix irq pending status bit width
netfilter: xt_CT: fix refcnt leak on error path
openvswitch: Delete conntrack entry clashing with an expectation.
netfilter: nf_ct_helper: permit cthelpers with different names via nfnetlink
mmc: host: omap_hsmmc: checking for NULL instead of IS_ERR()
tipc: check return value of nlmsg_new
wan: pc300too: abort path on failure
qlcnic: fix unchecked return value
netfilter: nft_dynset: continue to next expr if _OP_ADD succeeded
platform/x86: intel-vbtn: add volume up and down
scsi: mac_esp: Replace bogus memory barrier with spinlock
infiniband/uverbs: Fix integer overflows
pNFS: Fix use after free issues in pnfs_do_read()
xprtrdma: Cancel refresh worker during buffer shutdown
NFS: don't try to cross a mountpount when there isn't one there.
iio: st_pressure: st_accel: Initialise sensor platform data properly
mt7601u: check return value of alloc_skb
libertas: check return value of alloc_workqueue
rndis_wlan: add return value validation
Btrfs: fix incorrect space accounting after failure to insert inline extent
Btrfs: send, fix file hole not being preserved due to inline extent
Btrfs: fix extent map leak during fallocate error path
orangefs: do not wait for timeout if umounting
mac80211: don't parse encrypted management frames in ieee80211_frame_acked
ACPICA: iasl: Fix IORT SMMU GSI disassembling
iio: hid-sensor: fix return of -EINVAL on invalid values in ret or value
dt-bindings: mfd: axp20x: Add "xpowers,master-mode" property for AXP806 PMICs
mfd: palmas: Reset the POWERHOLD mux during power off
mtip32xx: use runtime tag to initialize command header
x86/KASLR: Fix kexec kernel boot crash when KASLR randomization fails
gpio: gpio-wcove: fix GPIO IRQ status mask
staging: unisys: visorhba: fix s-Par to boot with option CONFIG_VMAP_STACK set to y
staging: wilc1000: fix unchecked return value
ipvs: explicitly forbid ipv6 service/dest creation if ipv6 mod is disabled
mac80211: Fix possible sband related NULL pointer de-reference
mmc: sdhci-of-esdhc: limit SD clock for ls1012a/ls1046a
netfilter: x_tables: unlock on error in xt_find_table_lock()
ARM: DRA7: clockdomain: Change the CLKTRCTRL of CM_PCIE_CLKSTCTRL to SW_WKUP
IB/rdmavt: restore IRQs on error path in rvt_create_ah()
IB/hfi1: Fix softlockup issue
platform/x86: asus-wmi: try to set als by default
ipmi/watchdog: fix wdog hang on panic waiting for ipmi response
ACPI / PMIC: xpower: Fix power_table addresses
drm/amdgpu: fix gpu reset crash
drm/nouveau/kms: Increase max retries in scanout position queries.
jbd2: Fix lockdep splat with generic/270 test
ixgbevf: fix size of queue stats length
net: ethernet: ucc_geth: fix MEM_PART_MURAM mode
soc/fsl/qe: round brg_freq to 1kHz granularity
Bluetooth: hci_ldisc: Add protocol check to hci_uart_dequeue()
Bluetooth: hci_ldisc: Add protocol check to hci_uart_tx_wakeup()
vxlan: correctly handle ipv6.disable module parameter
qed: Unlock on error in qed_vf_pf_acquire()
bnx2x: Align RX buffers
power: supply: bq24190_charger: Add disable-reset device-property
power: supply: isp1704: Fix unchecked return value of devm_kzalloc
power: supply: pda_power: move from timer to delayed_work
Input: twl4030-pwrbutton - use correct device for irq request
IB/rxe: Don't clamp residual length to mtu
md/raid10: skip spare disk as 'first' disk
ACPI / power: Delay turning off unused power resources after suspend
ia64: fix module loading for gcc-5.4
tcm_fileio: Prevent information leak for short reads
x86/xen: split xen_smp_prepare_boot_cpu()
video: fbdev: udlfb: Fix buffer on stack
sm501fb: don't return zero on failure path in sm501fb_start()
pNFS: Fix a deadlock when coalescing writes and returning the layout
net: hns: fix ethtool_get_strings overflow in hns driver
cifs: small underflow in cnvrtDosUnixTm()
mm: fix check for reclaimable pages in PF_MEMALLOC reclaim throttling
mm, vmstat: suppress pcp stats for unpopulated zones in zoneinfo
mm: hwpoison: call shake_page() after try_to_unmap() for mlocked page
rtc: ds1374: wdt: Fix issue with timeout scaling from secs to wdt ticks
rtc: ds1374: wdt: Fix stop/start ioctl always returning -EINVAL
ath10k: fix out of bounds access to local buffer
perf tests kmod-path: Don't fail if compressed modules aren't supported
block/mq: Cure cpu hotplug lock inversion
Bluetooth: hci_qca: Avoid setup failure on missing rampatch
Bluetooth: btqcomsmd: Fix skb double free corruption
media: c8sectpfe: fix potential NULL pointer dereference in c8sectpfe_timer_interrupt
drm/msm: fix leak in failed get_pages
RDMA/iwpm: Fix uninitialized error code in iwpm_send_mapinfo()
rtlwifi: rtl_pci: Fix the bug when inactiveps is enabled.
media: bt8xx: Fix err 'bt878_probe()'
ath10k: handling qos at STA side based on AP WMM enable/disable
media: [RESEND] media: dvb-frontends: Add delay to Si2168 restart
qmi_wwan: set FLAG_SEND_ZLP to avoid network initiated disconnect
serial: 8250_dw: Disable clock on error
cros_ec: fix nul-termination for firmware build info
watchdog: Fix potential kref imbalance when opening watchdog
platform/chrome: Use proper protocol transfer function
dmaengine: zynqmp_dma: Fix race condition in the probe
drm/tilcdc: ensure nonatomic iowrite64 is not used
mmc: avoid removing non-removable hosts during suspend
IB/ipoib: Avoid memory leak if the SA returns a different DGID
RDMA/cma: Use correct size when writing netlink stats
IB/umem: Fix use of npages/nmap fields
iser-target: avoid reinitializing rdma contexts for isert commands
vgacon: Set VGA struct resource types
omapdrm: panel: fix compatible vendor string for td028ttec1
drm/omap: DMM: Check for DMM readiness after successful transaction commit
pty: cancel pty slave port buf's work in tty_release
coresight: Fix disabling of CoreSight TPIU
pinctrl: Really force states during suspend/resume
pinctrl: rockchip: enable clock when reading pin direction register
iommu/vt-d: clean up pr_irq if request_threaded_irq fails
ip6_vti: adjust vti mtu according to mtu of lower device
RDMA/ocrdma: Fix permissions for OCRDMA_RESET_STATS
ARM: dts: aspeed-evb: Add unit name to memory node
nfsd4: permit layoutget of executable-only files
clk: Don't touch hardware when reparenting during registration
clk: axi-clkgen: Correctly handle nocount bit in recalc_rate()
clk: si5351: Rename internal plls to avoid name collisions
dmaengine: ti-dma-crossbar: Fix event mapping for TPCC_EVT_MUX_60_63
IB/mlx5: Fix integer overflows in mlx5_ib_create_srq
IB/mlx5: Fix out-of-bounds read in create_raw_packet_qp_rq
clk: migrate the count of orphaned clocks at init
RDMA/ucma: Fix access to non-initialized CM_ID object
RDMA/ucma: Don't allow join attempts for unsupported AF family
usb: gadget: f_hid: fix: Move IN request allocation to set_alt()
Linux 4.9.90
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Changes in 4.9.89
blkcg: fix double free of new_blkg in blkcg_init_queue
Input: tsc2007 - check for presence and power down tsc2007 during probe
perf stat: Issue a HW watchdog disable hint
staging: speakup: Replace BUG_ON() with WARN_ON().
staging: wilc1000: add check for kmalloc allocation failure.
HID: reject input outside logical range only if null state is set
drm: qxl: Don't alloc fbdev if emulation is not supported
ARM: dts: r8a7791: Remove unit-address and reg from integrated cache
ARM: dts: r8a7792: Remove unit-address and reg from integrated cache
ARM: dts: r8a7793: Remove unit-address and reg from integrated cache
ARM: dts: r8a7794: Remove unit-address and reg from integrated cache
arm64: dts: r8a7796: Remove unit-address and reg from integrated cache
drm/sun4i: Fix up error path cleanup for master bind function
drm/sun4i: Set drm_crtc.port to the underlying TCON's output port node
ath10k: fix a warning during channel switch with multiple vaps
drm/sun4i: Fix TCON clock and regmap initialization sequence
PCI/MSI: Stop disabling MSI/MSI-X in pci_device_shutdown()
selinux: check for address length in selinux_socket_bind()
x86/mm: Make mmap(MAP_32BIT) work correctly
perf sort: Fix segfault with basic block 'cycles' sort dimension
x86/mce: Handle broadcasted MCE gracefully with kexec
eventpoll.h: fix epoll event masks
i40e: Acquire NVM lock before reads on all devices
i40e: fix ethtool to get EEPROM data from X722 interface
perf tools: Make perf_event__synthesize_mmap_events() scale
ARM: brcmstb: Enable ZONE_DMA for non 64-bit capable peripherals
drivers: net: xgene: Fix hardware checksum setting
drivers: net: phy: xgene: Fix mdio write
drivers: net: xgene: Fix wrong logical operation
drivers: net: xgene: Fix Rx checksum validation logic
drm: Defer disabling the vblank IRQ until the next interrupt (for instant-off)
ath10k: disallow DFS simulation if DFS channel is not enabled
ath10k: fix fetching channel during potential radar detection
usb: misc: lvs: fix race condition in disconnect handling
ARM: bcm2835: Enable missing CMA settings for VC4 driver
net: ethernet: bgmac: Allow MAC address to be specified in DTB
netem: apply correct delay when rate throttling
x86/mce: Init some CPU features early
omapfb: dss: Handle return errors in dss_init_ports()
perf probe: Fix concat_probe_trace_events
perf probe: Return errno when not hitting any event
HID: clamp input to logical range if no null state
net/8021q: create device with all possible features in wanted_features
ARM: dts: Adjust moxart IRQ controller and flags
qed: Always publish VF link from leading hwfn
s390/topology: fix typo in early topology code
zd1211rw: fix NULL-deref at probe
batman-adv: handle race condition for claims between gateways
of: fix of_device_get_modalias returned length when truncating buffers
solo6x10: release vb2 buffers in solo_stop_streaming()
x86/boot/32: Defer resyncing initial_page_table until per-cpu is set up
scsi: fnic: Fix for "Number of Active IOs" in fnicstats becoming negative
scsi: ipr: Fix missed EH wakeup
media: i2c/soc_camera: fix ov6650 sensor getting wrong clock
timers, sched_clock: Update timeout for clock wrap
sysrq: Reset the watchdog timers while displaying high-resolution timers
Input: qt1070 - add OF device ID table
sched: act_csum: don't mangle TCP and UDP GSO packets
PCI: hv: Properly handle PCI bus remove
PCI: hv: Lock PCI bus on device eject
ASoC: rcar: ssi: don't set SSICR.CKDV = 000 with SSIWSR.CONT
spi: omap2-mcspi: poll OMAP2_MCSPI_CHSTAT_RXS for PIO transfer
tcp: sysctl: Fix a race to avoid unexpected 0 window from space
dmaengine: imx-sdma: add 1ms delay to ensure SDMA channel is stopped
usb: dwc3: make sure UX_EXIT_PX is cleared
ARM: dts: bcm2835: add index to the ethernet alias
perf annotate: Fix a bug following symbolic link of a build-id file
perf buildid: Do not assume that readlink() returns a null terminated string
i40e/i40evf: Fix use after free in Rx cleanup path
scsi: be2iscsi: Check tag in beiscsi_mccq_compl_wait
driver: (adm1275) set the m,b and R coefficients correctly for power
bonding: make speed, duplex setting consistent with link state
mm: Fix false-positive VM_BUG_ON() in page_cache_{get,add}_speculative()
ALSA: firewire-lib: add a quirk of packet without valid EOH in CIP format
ARM: dts: r8a7794: Add DU1 clock to device tree
ARM: dts: r8a7794: Correct clock of DU1
ARM: dts: silk: Correct clock of DU1
blk-throttle: make sure expire time isn't too big
regulator: core: Limit propagation of parent voltage count and list
perf trace: Handle unpaired raw_syscalls:sys_exit event
f2fs: relax node version check for victim data in gc
drm/ttm: never add BO that failed to validate to the LRU list
bonding: refine bond_fold_stats() wrap detection
PCI: Apply Cavium ACS quirk only to CN81xx/CN83xx/CN88xx devices
powerpc/mm/hugetlb: Filter out hugepage size not supported by page table layout
braille-console: Fix value returned by _braille_console_setup
drm/vmwgfx: Fixes to vmwgfx_fb
vxlan: vxlan dev should inherit lowerdev's gso_max_size
NFC: nfcmrvl: Include unaligned.h instead of access_ok.h
NFC: nfcmrvl: double free on error path
NFC: pn533: change order of free_irq and dev unregistration
ARM: dts: r7s72100: fix ethernet clock parent
ARM: dts: r8a7790: Correct parent of SSI[0-9] clocks
ARM: dts: r8a7791: Correct parent of SSI[0-9] clocks
ARM: dts: r8a7793: Correct parent of SSI[0-9] clocks
powerpc: Avoid taking a data miss on every userspace instruction miss
net: hns: Correct HNS RSS key set function
net/faraday: Add missing include of of.h
qed: Fix TM block ILT allocation
rtmutex: Fix PI chain order integrity
printk: Correctly handle preemption in console_unlock()
drm: rcar-du: Handle event when disabling CRTCs
ARM: dts: koelsch: Correct clock frequency of X2 DU clock input
reiserfs: Make cancel_old_flush() reliable
ASoC: rt5677: Add OF device ID table
IB/hfi1: Check for QSFP presence before attempting reads
ALSA: firewire-digi00x: add support for console models of Digi00x series
ALSA: firewire-digi00x: handle all MIDI messages on streaming packets
fm10k: correctly check if interface is removed
EDAC, altera: Fix peripheral warnings for Cyclone5
scsi: ses: don't get power status of SES device slot on probe
qed: Correct MSI-x for storage
apparmor: Make path_max parameter readonly
iommu/iova: Fix underflow bug in __alloc_and_insert_iova_range
kvm/svm: Setup MCG_CAP on AMD properly
kvm: nVMX: Disallow userspace-injected exceptions in guest mode
video: ARM CLCD: fix dma allocation size
drm/radeon: Fail fb creation from imported dma-bufs.
drm/amdgpu: Fail fb creation from imported dma-bufs. (v2)
drm/rockchip: vop: Enable pm domain before vop_initial
i40e: only register client on iWarp-capable devices
coresight: Fixes coresight DT parse to get correct output port ID.
lkdtm: turn off kcov for lkdtm_rodata_do_nothing:
tty: amba-pl011: Fix spurious TX interrupts
serial: imx: setup DCEDTE early and ensure DCD and RI irqs to be off
MIPS: BPF: Quit clobbering callee saved registers in JIT code.
MIPS: BPF: Fix multiple problems in JIT skb access helpers.
MIPS: r2-on-r6-emu: Fix BLEZL and BGTZL identification
MIPS: r2-on-r6-emu: Clear BLTZALL and BGEZALL debugfs counters
v4l: vsp1: Prevent multiple streamon race commencing pipeline early
v4l: vsp1: Register pipe with output WPF
regulator: isl9305: fix array size
md/raid6: Fix anomily when recovering a single device in RAID6.
md.c:didn't unlock the mddev before return EINVAL in array_size_store
powerpc/nohash: Fix use of mmu_has_feature() in setup_initial_memory_limit()
usb: dwc2: Make sure we disconnect the gadget state
usb: gadget: dummy_hcd: Fix wrong power status bit clear/reset in dummy_hub_control()
perf evsel: Return exact sub event which failed with EPERM for wildcards
iwlwifi: mvm: fix RX SKB header size and align it properly
drivers/perf: arm_pmu: handle no platform_device
perf inject: Copy events when reordering events in pipe mode
net: fec: add phy-reset-gpios PROBE_DEFER check
perf session: Don't rely on evlist in pipe mode
vfio/powerpc/spapr_tce: Enforce IOMMU type compatibility check
vfio/spapr_tce: Check kzalloc() return when preregistering memory
scsi: sg: check for valid direction before starting the request
scsi: sg: close race condition in sg_remove_sfp_usercontext()
ALSA: hda: Add Geminilake id to SKL_PLUS
kprobes/x86: Fix kprobe-booster not to boost far call instructions
kprobes/x86: Set kprobes pages read-only
pwm: tegra: Increase precision in PWM rate calculation
clk: qcom: msm8996: Fix the vfe1 powerdomain name
Bluetooth: Avoid bt_accept_unlink() double unlinking
Bluetooth: 6lowpan: fix delay work init in add_peer_chan()
mac80211_hwsim: use per-interface power level
ath10k: fix compile time sanity check for CE4 buffer size
wil6210: fix protection against connections during reset
wil6210: fix memory access violation in wil_memcpy_from/toio_32
perf stat: Fix bug in handling events in error state
mwifiex: Fix invalid port issue
drm/edid: set ELD connector type in drm_edid_to_eld()
video/hdmi: Allow "empty" HDMI infoframes
HID: elo: clear BTN_LEFT mapping
iwlwifi: mvm: rs: don't override the rate history in the search cycle
clk: meson: gxbb: fix wrong clock for SARADC/SANA
ARM: dts: exynos: Correct Trats2 panel reset line
sched: Stop switched_to_rt() from sending IPIs to offline CPUs
sched: Stop resched_cpu() from sending IPIs to offline CPUs
test_firmware: fix setting old custom fw path back on exit
net: ieee802154: adf7242: Fix bug if defined DEBUG
net: xfrm: allow clearing socket xfrm policies.
mtd: nand: fix interpretation of NAND_CMD_NONE in nand_command[_lp]()
net: thunderx: Set max queue count taking XDP_TX into account
ARM: dts: am335x-pepper: Fix the audio CODEC's reset pin
ARM: dts: omap3-n900: Fix the audio CODEC's reset pin
mtd: nand: ifc: update bufnum mask for ver >= 2.0.0
userns: Don't fail follow_automount based on s_user_ns
leds: pm8058: Silence pointer to integer size warning
power: supply: ab8500_charger: Fix an error handling path
power: supply: ab8500_charger: Bail out in case of error in 'ab8500_charger_init_hw_registers()'
ath10k: update tdls teardown state to target
scsi: ses: don't ask for diagnostic pages repeatedly during probe
pwm: stmpe: Fix wrong register offset for hwpwm=2 case
clk: qcom: msm8916: fix mnd_width for codec_digcodec
mwifiex: cfg80211: do not change virtual interface during scan processing
ath10k: fix invalid STS_CAP_OFFSET_MASK
tools/usbip: fixes build with musl libc toolchain
spi: sun6i: disable/unprepare clocks on remove
bnxt_en: Don't print "Link speed -1 no longer supported" messages.
scsi: core: scsi_get_device_flags_keyed(): Always return device flags
scsi: devinfo: apply to HP XP the same flags as Hitachi VSP
scsi: dh: add new rdac devices
media: vsp1: Prevent suspending and resuming DRM pipelines
media: cpia2: Fix a couple off by one bugs
veth: set peer GSO values
drm/amdkfd: Fix memory leaks in kfd topology
powerpc/modules: Don't try to restore r2 after a sibling call
agp/intel: Flush all chipset writes after updating the GGTT
mac80211_hwsim: enforce PS_MANUAL_POLL to be set after PS_ENABLED
mac80211: remove BUG() when interface type is invalid
ASoC: nuc900: Fix a loop timeout test
ipvlan: add L2 check for packets arriving via virtual devices
rcutorture/configinit: Fix build directory error message
locking/locktorture: Fix num reader/writer corner cases
ima: relax requiring a file signature for new files with zero length
net: hns: Some checkpatch.pl script & warning fixes
x86/boot/32: Fix UP boot on Quark and possibly other platforms
x86/cpufeatures: Add Intel PCONFIG cpufeature
selftests/x86/entry_from_vm86: Exit with 1 if we fail
selftests/x86: Add tests for User-Mode Instruction Prevention
selftests/x86: Add tests for the STR and SLDT instructions
selftests/x86/entry_from_vm86: Add test cases for POPF
x86/vm86/32: Fix POPF emulation
x86/speculation, objtool: Annotate indirect calls/jumps for objtool on 32-bit kernels
x86/speculation: Remove Skylake C2 from Speculation Control microcode blacklist
x86/mm: Fix vmalloc_fault to use pXd_large
parisc: Handle case where flush_cache_range is called with no context
ALSA: pcm: Fix UAF in snd_pcm_oss_get_formats()
ALSA: hda - Revert power_save option default value
ALSA: seq: Fix possible UAF in snd_seq_check_queue()
ALSA: seq: Clear client entry before deleting else at closing
drm/amdgpu: fix prime teardown order
drm/amdgpu/dce: Don't turn off DP sink when disconnected
fs: Teach path_connected to handle nfs filesystems with multiple roots.
lock_parent() needs to recheck if dentry got __dentry_kill'ed under it
fs/aio: Add explicit RCU grace period when freeing kioctx
fs/aio: Use RCU accessors for kioctx_table->table[]
irqchip/gic-v3-its: Ensure nr_ites >= nr_lpis
scsi: sg: fix SG_DXFER_FROM_DEV transfers
scsi: sg: fix static checker warning in sg_is_valid_dxfer
scsi: sg: only check for dxfer_len greater than 256M
btrfs: alloc_chunk: fix DUP stripe size handling
btrfs: Fix use-after-free when cleaning up fs_devs with a single stale device
scsi: qla2xxx: Fix extraneous ref on sp's after adapter break
USB: gadget: udc: Add missing platform_device_put() on error in bdc_pci_probe()
usb: dwc3: Fix GDBGFIFOSPACE_TYPE values
usb: gadget: bdc: 64-bit pointer capability check
Linux 4.9.89
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
[ Upstream commit 0107042768 ]
On systems with a large number of CPUs, running sysrq-<q> can cause
watchdog timeouts. There are two slow sections of code in the sysrq-<q>
path in timer_list.c.
1. print_active_timers() - This function is called by print_cpu() and
contains a slow goto loop. On a machine with hundreds of CPUs, this
loop took approximately 100ms for the first CPU in a NUMA node.
(Subsequent CPUs in the same node ran much quicker.) The total time
to print all of the CPUs is ultimately long enough to trigger the
soft lockup watchdog.
2. print_tickdevice() - This function outputs a large amount of textual
information. This function also took approximately 100ms per CPU.
Since sysrq-<q> is not a performance critical path, there should be no
harm in touching the nmi watchdog in both slow sections above. Touching
it in just one location was insufficient on systems with hundreds of
CPUs as occasional timeouts were still observed during testing.
This issue was observed on an Oracle T7 machine with 128 CPUs, but I
anticipate it may affect other systems with similarly large numbers of
CPUs.
Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>
Reviewed-by: Rob Gardner <rob.gardner@oracle.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 1b8955bc5a ]
The scheduler clock framework may not use the correct timeout for the clock
wrap. This happens when a new clock driver calls sched_clock_register()
after the kernel called sched_clock_postinit(). In this case the clock wrap
timeout is too long thus sched_clock_poll() is called too late and the clock
already wrapped.
On my ARM system the scheduler was no longer scheduling any other task than
the idle task because the sched_clock() wrapped.
Signed-off-by: David Engraf <david.engraf@sysgo.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Changes in 4.9.87
tpm: st33zp24: fix potential buffer overruns caused by bit glitches on the bus
tpm_i2c_infineon: fix potential buffer overruns caused by bit glitches on the bus
tpm_i2c_nuvoton: fix potential buffer overruns caused by bit glitches on the bus
tpm_tis: fix potential buffer overruns caused by bit glitches on the bus
tpm: constify transmit data pointers
tpm_tis_spi: Use DMA-safe memory for SPI transfers
tpm-dev-common: Reject too short writes
ALSA: usb-audio: Add a quirck for B&W PX headphones
ALSA: hda: Add a power_save blacklist
ALSA: hda - Fix pincfg at resume on Lenovo T470 dock
timers: Forward timer base before migrating timers
parisc: Fix ordering of cache and TLB flushes
cpufreq: s3c24xx: Fix broken s3c_cpufreq_init()
dax: fix vma_is_fsdax() helper
x86/xen: Zero MSR_IA32_SPEC_CTRL before suspend
x86/platform/intel-mid: Handle Intel Edison reboot correctly
media: m88ds3103: don't call a non-initalized function
nospec: Allow index argument to have const-qualified type
ARM: mvebu: Fix broken PL310_ERRATA_753970 selects
ARM: kvm: fix building with gcc-8
KVM: mmu: Fix overlap between public and private memslots
KVM/x86: Remove indirect MSR op calls from SPEC_CTRL
KVM/VMX: Optimize vmx_vcpu_run() and svm_vcpu_run() by marking the RDMSR path as unlikely()
PCI/ASPM: Deal with missing root ports in link state handling
dm io: fix duplicate bio completion due to missing ref count
ARM: dts: LogicPD SOM-LV: Fix I2C1 pinmux
ARM: dts: LogicPD Torpedo: Fix I2C1 pinmux
x86/mm: Give each mm TLB flush generation a unique ID
x86/speculation: Use Indirect Branch Prediction Barrier in context switch
md: only allow remove_and_add_spares when no sync_thread running.
netlink: put module reference if dump start fails
x86/apic/vector: Handle legacy irq data correctly
bridge: check brport attr show in brport_show
fib_semantics: Don't match route with mismatching tclassid
hdlc_ppp: carrier detect ok, don't turn off negotiation
ipv6 sit: work around bogus gcc-8 -Wrestrict warning
net: fix race on decreasing number of TX queues
net: ipv4: don't allow setting net.ipv4.route.min_pmtu below 68
netlink: ensure to loop over all netns in genlmsg_multicast_allns()
ppp: prevent unregistered channels from connecting to PPP units
udplite: fix partial checksum initialization
sctp: fix dst refcnt leak in sctp_v4_get_dst
mlxsw: spectrum_switchdev: Check success of FDB add operation
net: phy: fix phy_start to consider PHY_IGNORE_INTERRUPT
tcp: Honor the eor bit in tcp_mtu_probe
rxrpc: Fix send in rxrpc_send_data_packet()
tcp_bbr: better deal with suboptimal GSO
sctp: fix dst refcnt leak in sctp_v6_get_dst()
s390/qeth: fix underestimated count of buffer elements
s390/qeth: fix SETIP command handling
s390/qeth: fix overestimated count of buffer elements
s390/qeth: fix IP removal on offline cards
s390/qeth: fix double-free on IP add/remove race
s390/qeth: fix IP address lookup for L3 devices
s390/qeth: fix IPA command submission race
sctp: verify size of a new chunk in _sctp_make_chunk()
net: mpls: Pull common label check into helper
mpls, nospec: Sanitize array index in mpls_label_ok()
bpf: fix wrong exposure of map_flags into fdinfo for lpm
bpf: fix mlock precharge on arraymaps
bpf, x64: implement retpoline for tail call
bpf, arm64: fix out of bounds access in tail call
bpf: add schedule points in percpu arrays management
bpf, ppc64: fix out of bounds access in tail call
btrfs: preserve i_mode if __btrfs_set_acl() fails
Linux 4.9.87
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
commit c52232a49e upstream.
On CPU hotunplug the enqueued timers of the unplugged CPU are migrated to a
live CPU. This happens from the control thread which initiated the unplug.
If the CPU on which the control thread runs came out from a longer idle
period then the base clock of that CPU might be stale because the control
thread runs prior to any event which forwards the clock.
In such a case the timers from the unplugged CPU are queued on the live CPU
based on the stale clock which can cause large delays due to increased
granularity of the outer timer wheels which are far away from base:;clock.
But there is a worse problem than that. The following sequence of events
illustrates it:
- CPU0 timer1 is queued expires = 59969 and base->clk = 59131.
The timer is queued at wheel level 2, with resulting expiry time = 60032
(due to level granularity).
- CPU1 enters idle @60007, with next timer expiry @60020.
- CPU0 is hotplugged at @60009
- CPU1 exits idle and runs the control thread which migrates the
timers from CPU0
timer1 is now queued in level 0 for immediate handling in the next
softirq because the requested expiry time 59969 is before CPU1 base->clk
60007
- CPU1 runs code which forwards the base clock which succeeds because the
next expiring timer. which was collected at idle entry time is still set
to 60020.
So it forwards beyond 60007 and therefore misses to expire the migrated
timer1. That timer gets expired when the wheel wraps around again, which
takes between 63 and 630ms depending on the HZ setting.
Address both problems by invoking forward_timer_base() for the control CPUs
timer base. All other places, which might run into a similar problem
(mod_timer()/add_timer_on()) already invoke forward_timer_base() to avoid
that.
[ tglx: Massaged comment and changelog ]
Fixes: a683f390b9 ("timers: Forward the wheel clock whenever possible")
Co-developed-by: Neeraj Upadhyay <neeraju@codeaurora.org>
Signed-off-by: Neeraj Upadhyay <neeraju@codeaurora.org>
Signed-off-by: Lingutla Chandrasekhar <clingutla@codeaurora.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Anna-Maria Gleixner <anna-maria@linutronix.de>
Cc: linux-arm-msm@vger.kernel.org
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20180118115022.6368-1-clingutla@codeaurora.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Changes in 4.9.86
hrtimer: Ensure POSIX compliance (relative CLOCK_REALTIME hrtimers)
i2c: designware: must wait for enable
f2fs: fix a bug caused by NULL extent tree
dmaengine: fsl-edma: disable clks on all error paths
nvme: check hw sectors before setting chunk sectors
net: usb: qmi_wwan: add Telit ME910 PID 0x1101 support
mtd: nand: gpmi: Fix failure when a erased page has a bitflip at BBM
mtd: nand: brcmnand: Zero bitflip is not an error
ipv6: icmp6: Allow icmp messages to be looped back
ARM: 8731/1: Fix csum_partial_copy_from_user() stack mismatch
x86/asm: Allow again using asm.h when building for the 'bpf' clang target
sget(): handle failures of register_shrinker()
net: phy: xgene: disable clk on error paths
drm/nouveau/pci: do a msi rearm on init
mac80211_hwsim: Fix a possible sleep-in-atomic bug in hwsim_get_radio_nl
spi: atmel: fixed spin_lock usage inside atmel_spi_remove
ASoC: nau8825: fix issue that pop noise when start capture
net: mediatek: setup proper state for disabled GMAC on the default
net: arc_emac: fix arc_emac_rx() error paths
ip6_tunnel: get the min mtu properly in ip6_tnl_xmit
net: stmmac: Fix TX timestamp calculation
scsi: storvsc: Fix scsi_cmd error assignments in storvsc_handle_error
ARM: dts: ls1021a: fix incorrect clock references
lib/mpi: Fix umul_ppmm() for MIPS64r6
tipc: error path leak fixes in tipc_enable_bearer()
tipc: fix tipc_mon_delete() oops in tipc_enable_bearer() error path
tg3: Add workaround to restrict 5762 MRRS to 2048
tg3: Enable PHY reset in MTU change path for 5720
bnx2x: Improve reliability in case of nested PCI errors
led: core: Fix brightness setting when setting delay_off=0
IB/mlx5: Fix mlx5_ib_alloc_mr error flow
genirq: Guard handle_bad_irq log messages
s390/dasd: fix wrongly assigned configuration data
IB/mlx4: Fix mlx4_ib_alloc_mr error flow
IB/ipoib: Fix race condition in neigh creation
xfs: quota: fix missed destroy of qi_tree_lock
xfs: quota: check result of register_shrinker()
macvlan: Fix one possible double free
e1000: fix disabling already-disabled warning
NET: usb: qmi_wwan: add support for YUGA CLM920-NC5 PID 0x9625
drm/ttm: check the return value of kzalloc
uapi libc compat: add fallback for unsupported libcs
i40e/i40evf: Account for frags split over multiple descriptors in check linearize
nl80211: Check for the required netlink attribute presence
mac80211: mesh: drop frames appearing to be from us
can: flex_can: Correct the checking for frame length in flexcan_start_xmit()
bnxt_en: Fix the 'Invalid VF' id check in bnxt_vf_ndo_prep routine.
xen-netfront: enable device after manual module load
mdio-sun4i: Fix a memory leak
SolutionEngine771x: fix Ether platform data
xen/gntdev: Fix off-by-one error when unmapping with holes
xen/gntdev: Fix partial gntdev_mmap() cleanup
sctp: make use of pre-calculated len
net: gianfar_ptp: move set_fipers() to spinlock protecting area
KVM: arm/arm64: Fix check for hugepage size when allocating at Stage 2
MIPS: Implement __multi3 for GCC7 MIPS64r6 builds
Linux 4.9.86
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
