Xenial update to v4.4.22 stable release

[Tim Gardner]

SRU Justification

    Impact:
       The upstream process for stable tree updates is quite similar
       in scope to the Ubuntu SRU process, e.g., each patch has to
       demonstrably fix a bug, and each patch is vetted by upstream
       by originating either directly from a mainline/stable Linux tree or
       a minimally backported form of that patch. The v4.4.22 upstream stable
       patch set is now available. It should be included in the Ubuntu
       kernel as well.

       git://git.kernel.org/

    TEST CASE: TBD

       The following patches from the v4.4.22 stable release shall be applied:

ext4: use __GFP_NOFAIL in ext4_free_blocks()
fscrypto: add authorization check for setting encryption policy
clocksource/drivers/sun4i: Clear interrupts after stopping timer in probe function
MIPS: KVM: Check for pfn noslot case
fscrypto: require write access to mount to set encryption policy
lightnvm: put bio before return
powerpc/tm: do not use r13 for tabort_syscall
powerpc/mm: Don't alias user region to other regions below PAGE_OFFSET
kernfs: don't depend on d_find_any_alias() when generating notifications
pNFS: The client must not do I/O to the DS if it's lease has expired
NFSv4.x: Fix a refcount leak in nfs_callback_up_net
nfsd: Close race between nfsd4_release_lockowner and nfsd4_lock
pNFS: Ensure LAYOUTGET and LAYOUTRETURN are properly serialised
NFSv4.1: Fix the CREATE_SESSION slot number accounting
kexec: fix double-free when failing to relocate the purgatory
mm: introduce get_task_exe_file
audit: fix exe_file access in audit_exe_compare
dm flakey: fix reads to be issued if drop_writes configured
IB/uverbs: Fix race between uverbs_close and remove_one
ARC: mm: fix build breakage with STRICT_MM_TYPECHECKS
x86/paravirt: Do not trace _paravirt_ident_*() functions
x86/AMD: Apply erratum 665 on machines without a BIOS fix
kvm-arm: Unmap shadow pagetables properly
iio: accel: kxsd9: Fix raw read return
iio: proximity: as3935: set up buffer timestamps for non-zero values
iio: adc: rockchip_saradc: reset saradc controller before programming it
iio: adc: ti_am335x_adc: Protect FIFO1 from concurrent access
iio: adc: ti_am335x_adc: Increase timeout value waiting for ADC sample
iio: ad799x: Fix buffered capture for ad7991/ad7995/ad7999
iio: adc: at91: unbreak channel adc channel 3
iio: accel: bmc150: reset chip at init time
iio: fix pressure data output unit in hid-sensor-attributes
iio: accel: kxsd9: Fix scaling bug
iio:core: fix IIO_VAL_FRACTIONAL sign handling
iio: ensure ret is initialized to zero before entering do loop
serial: 8250_mid: fix divide error bug if baud rate is 0
serial: 8250: added acces i/o products quad and octal serial cards
USB: serial: simple: add support for another Infineon flashloader
usb: renesas_usbhs: fix clearing the {BRDY,BEMP}STS condition
usb: chipidea: udc: fix NULL ptr dereference in isr_setup_status_phase
ARM: dts: STiH410: Handle interconnect clock required by EHCI/OHCI (USB)
USB: change bInterval default to 10 ms
net: thunderx: Fix OOPs with ethtool --register-dump
cpuset: make sure new tasks conform to the current config of the cpuset
ARM: AM43XX: hwmod: Fix RSTST register offset for pruss
ARM: imx6: add missing BM_CLPCR_BYP_MMDC_CH0_LPM_HS setting for imx6ul
ARM: imx6: add missing BM_CLPCR_BYPASS_PMIC_READY setting for imx6sx
ARM: kirkwood: ib62x0: fix size of u-boot environment partition
ARM: OMAP3: hwmod data: Add sysc information for DSI
ARM: dts: imx6qdl: Fix SPDIF regression
ARM: dts: overo: fix gpmc nand cs0 range
ARM: dts: overo: fix gpmc nand on boards with ethernet
ARM: dts: STiH407-family: Provide interconnect clock for consumption in ST SDHCI
bus: arm-ccn: Fix PMU handling of MN
bus: arm-ccn: Do not attempt to configure XPs for cycle counter
bus: arm-ccn: Fix XP watchpoint settings bitmask
dm log writes: fix check of kthread_run() return value
dm log writes: move IO accounting earlier to fix error path
dm crypt: fix error with too large bios
pinctrl: pistachio: fix mfio pll_lock pinmux
pinctrl: sunxi: fix uart1 CTS/RTS pins at PG on A23/A33
arm64: spinlocks: implement smp_mb__before_spinlock() as smp_mb()
crypto: cryptd - initialize child shash_desc on import
Btrfs: remove root_log_ctx from ctx list before btrfs_sync_log returns
fuse: direct-io: don't dirty ITER_BVEC pages
xhci: fix null pointer dereference in stop command timeout function
md-cluster: make md-cluster also can work when compiled into kernel
ath9k: fix using sta->drv_priv before initializing it
Revert "wext: Fix 32 bit iwpriv compatibility issue with 64 bit Kernel"
sched/core: Fix a race between try_to_wake_up() and a woken up task
ipv6: addrconf: fix dev refcont leak when DAD failed
gma500: remove annoying deprecation warning
mpssd: fix buffer overflow warning
drm/i915: Avoid pointer arithmetic in calculating plane surface offset
mmc: dw_mmc: use resource_size_t to store physical address
pinctrl: at91-pio4: use %pr format string for resource
soc: qcom/spm: shut up uninitialized variable warning
kconfig: tinyconfig: provide whole choice blocks to avoid warnings
net: simplify napi_synchronize() to avoid warnings
drm: atmel-hlcdc: Fix vertical scaling
drm: Only use compat ioctl for addfb2 on X86/IA64
genirq: Provide irq_gc_{lock_irqsave,unlock_irqrestore}() helpers
irqchip/atmel-aic: Fix potential deadlock in ->xlate()
fix iov_iter_fault_in_readable()
microblaze: fix __get_user()
avr32: fix copy_from_user()
microblaze: fix copy_from_user()
fix minor infoleak in get_user_ex()
mn10300: failing __get_user() and get_user() should zero
m32r: fix __get_user()
sh64: failing __get_user() should zero
nios2: fix __get_user()
score: fix __get_user/get_user
s390: get_user() should zero on failure
ARC: uaccess: get_user to zero out dest in cause of fault
asm-generic: make get_user() clear the destination on errors
frv: fix clear_user()
cris: buggered copy_from_user/copy_to_user/clear_user
blackfin: fix copy_from_user()
score: fix copy_from_user() and friends
sh: fix copy_from_user()
hexagon: fix strncpy_from_user() error return
mips: copy_from_user() must zero the destination on access_ok() failure
asm-generic: make copy_from_user() zero the destination properly
alpha: fix copy_from_user()
metag: copy_from_user() should zero the destination on access_ok() failure
parisc: fix copy_from_user()
openrisc: fix copy_from_user()
nios2: copy_from_user() should zero the tail of destination
mn10300: copy_from_user() should zero on access_ok() failure...
sparc32: fix copy_from_user()
ppc32: fix copy_from_user()
genirq/msi: Fix broken debug output
ia64: copy_from_user() should zero the destination on access_ok() failure
avr32: fix 'undefined reference to `___copy_from_user'
openrisc: fix the fix of copy_from_user()
Linux 4.4.22

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 4.4.0-47.68

---------------
linux (4.4.0-47.68) xenial; urgency=low

  [ Kamal Mostafa ]

  * Release Tracking Bug
    - LP: #1636941

  * Add a driver for Amazon Elastic Network Adapters (ENA) (LP: #1635721)
    - lib/bitmap.c: conversion routines to/from u32 array
    - net: ethtool: add new ETHTOOL_xLINKSETTINGS API
    - net: ena: Add a driver for Amazon Elastic Network Adapters (ENA)
    - [config] enable CONFIG_ENA_ETHERNET=m (Amazon ENA driver)

  * unexpectedly large memory usage of mounted snaps (LP: #1636847)
    - [Config] switch squashfs to single threaded decode

 -- Kamal Mostafa <email address hidden> Wed, 26 Oct 2016 10:47:55 -0700