Wily update to v4.2.8-ckt2 stable release

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 v4.2.8-ckt2 upstream stable
       patch set is now available. It should be included in the Ubuntu
       kernel as well.

       git://kernel.ubuntu.com/ubuntu/linux.git

    TEST CASE: TBD

       The following patches from the v4.2.8-ckt2 stable release shall be applied:

Linux 4.2.8-ckt2
net: possible use after free in dst_release
sched/core: Reset task's lockless wake-queues on fork()
net: filter: make JITs zero A for SKF_AD_ALU_XOR_X
net: sched: fix missing free per cpu on qstats
ASoC: Use nested lock for snd_soc_dapm_mutex_lock
kvm: x86: only channel 0 of the i8254 is linked to the HPET
firmware: dmi_scan: Fix UUID endianness for SMBIOS >= 2.6
vmstat: allocate vmstat_wq before it is used
ftrace/module: Call clean up function when module init fails early
dts: vt8500: Add SDHC node to DTS file for WM8650
async_tx: use GFP_NOWAIT rather than GFP_IO
ARM: versatile: fix MMC/SD interrupt assignment
ARM: OMAP2+: Fix onenand rate detection to avoid filesystem corruption
tile: provide CONFIG_PAGE_SIZE_64KB etc for tilepro
tracing: Fix setting of start_index in find_next()
ftrace/scripts: Fix incorrect use of sprintf in recordmcount
ALSA: hda - Add keycode map for alc input device
ALSA: hda - Add mic mute hotkey quirk for Lenovo ThinkCentre AIO
ASoC: arizona: Fix bclk for sample rates that are multiple of 4kHz
x86/paravirt: Prevent rtc_cmos platform device init on PV guests
x86/mce: Ensure offline CPUs don't participate in rendezvous process
genirq: Prevent chip buslock deadlock
include/linux/mmdebug.h: should include linux/bug.h
net: phy: mdio-mux: Check return value of mdiobus_alloc()
dmaengine: bcm2835-dma: Convert to use DMA pool
qlcnic: fix a timeout loop
sh_eth: fix TX buffer byte-swapping
mISDN: fix a loop count
pinctrl: bcm2835: Fix initial value for direction_output
ser_gigaset: fix deallocation of platform device structure
addrconf: always initialize sysctl table data
netfilter: nfnetlink_queue: Unregister pernet subsys in case of init failure
net: fix warnings in 'make htmldocs' by moving macro definition out of field declaration
serial: 8250_uniphier: fix dl_read and dl_write functions
sctp: start t5 timer only when peer rwnd is 0 and local state is SHUTDOWN_PENDING
sctp: convert sack_needed and sack_generation to bits
phy: sun9i-usb: add USB dependency
amd-xgbe: fix a couple timeout loops
xfrm: add rcu protection to sk->sk_policy[]
ipv6/addrlabel: fix ip6addrlbl_get()
mm/memory_hotplug.c: check for missing sections in test_pages_in_a_zone()
ocfs2: fix BUG when calculate new backup super
[PATCH] arm: fix handling of F_OFD_... in oabi_fcntl64()
KVM: MTRR: treat memory as writeback if MTRR is disabled in guest CPUID
KVM: MTRR: observe maxphyaddr from guest CPUID, not host
KVM: MTRR: fix fixed MTRR segment look up
MIPS: CPS: drop .set mips64r2 directives
drm/i915: Only spin whilst waiting on the current request
drm/i915: Limit the busy wait on requests to 5us not 10ms!
drm/i915: Break busywaiting for requests on pending signals
MIPS: uaccess: Fix strlen_user with EVA
ALSA: hda/realtek - Fix silent headphone output on MacPro 4,1 (v2)
parisc: Fix syscall restarts
md: remove check for MD_RECOVERY_NEEDED in action_store.
i2c: rcar: disable runtime PM correctly in slave mode
USB: fix invalid memory access in hub_activate()
USB: ipaq.c: fix a timeout loop
[media] airspy: increase USB control message buffer size
[media] Revert "[media] ivtv: avoid going past input/audio array"
s390/dis: Fix handling of format specifiers
ALSA: hda - Set SKL+ hda controller power at freeze() and thaw()
md/raid10: fix data corruption and crash during resync
drm/nouveau/bios/fan: hardcode the fan mode to linear
powerpc/powernv: pr_warn_once on unsupported OPAL_MSG type
ARC: dw2 unwind: Ignore CIE version !=1 gracefully instead of bailing
ARC: dw2 unwind: Reinstante unwinding out of modules
mtd: ubi: don't leak e if schedule_erase() fails
mtd: ubi: fixup error correction in do_sync_erase()
ftrace/scripts: Have recordmcount copy the object file
dma-debug: Fix dma_debug_entry offset calculation
scripts: recordmcount: break hardlinks
spi: fix parent-device reference leak
ALSA: hda - Add a fixup for Thinkpad X1 Carbon 2nd
ALSA: hda - Set codec to D3 at reboot/shutdown on Thinkpads
ALSA: hda - Apply click noise workaround for Thinkpads generically
ALSA: hda - Fix headphone mic input on a few Dell ALC293 machines
ARM: 8471/1: need to save/restore arm register(r11) when it is corrupted
ARM: dts: imx6: Fix Ethernet PHY mode on Ventana boards
drm: Don't overwrite UNVERFIED mode status to OK
ALSA: usb-audio: Add sample rate inquiry quirk for AudioQuest DragonFly
ALSA: usb-audio: Add a more accurate volume quirk for AudioQuest DragonFly
tty: Fix GPF in flush_to_ldisc()
n_tty: Fix poll() after buffer-limited eof push read
ASoC: wm8974: set cache type for regmap
i2c: designware: fix IO timeout issue for AMD controller
i2c: designware: reverts "i2c: designware: Add support for AMD I2C controller"
ARCv2: intc: Fix random perf irq disabling in SMP setup
powercap / RAPL: fix BIOS lock check
ses: fix additional element traversal bug
ASoC: davinci-mcasp: Fix XDATA check in mcasp_start_tx
Revert "SCSI: Fix NULL pointer dereference in runtime PM"
ses: Fix problems with simple enclosures
rfkill: copy the name into the rfkill struct
dmaengine: at_xdmac: fix at_xdmac_prep_dma_memcpy()
KVM: PPC: Book3S HV: Prohibit setting illegal transaction state in MSR
ASoC: es8328: Fix deemphasis values
crypto: skcipher - Copy iv from desc even for 0-len walks
video: fbdev: fsl: Fix kernel crash when diu_ops is not implemented
dmaengine: at_xdmac: fix macro typo
net: mvpp2: fix refilling BM pools in RX path
net: mvpp2: fix buffers' DMA handling on RX path
net: mvpp2: fix missing DMA region unmap in egress processing
ARM: 8465/1: mm: keep reserved ASIDs in sync with mm after multiple rollovers
xen/events/fifo: Consume unprocessed events when a CPU dies
i2c: mv64xxx: The n clockdiv factor is 0 based on sunxi SoCs
i2c: rk3x: populate correct variable for sda_falling_time
usb: musb: USB_TI_CPPI41_DMA requires dmaengine support
sata/mvebu: use #ifdef around suspend/resume code
sched/wait: Fix the signal handling fix
sh64: fix __NR_fgetxattr
ocfs2: fix SGID not inherited issue
drivers/base/memory.c: prohibit offlining of memory blocks with missing sections
mm: hugetlb: call huge_pte_alloc() only if ptep is null
mm, vmstat: allow WQ concurrency to discover memory reclaim doesn't make any progress
mm: hugetlb: fix hugepage memory leak caused by wrong reserve count
parisc iommu: fix panic due to trying to allocate too large region
USB: add quirk for devices with broken LPM
xhci: fix usb2 resume timing and races.
ARM: dts: vf610: use reset values for L2 cache latencies
vgaarb: fix signal handling in vga_get()
dm btree: fix bufio buffer leaks in dm_btree_del() error path
ipmi: move timer init to before irq is setup
dm space map metadata: fix ref counting bug when bootstrapping a new space map
dm thin metadata: fix bug when taking a metadata snapshot
ALSA: hda/ca0132 - quirk for Alienware 17 2015
ALSA: hda - Fix noise problems on Thinkpad T440s
radeon: Fix VCE IB test on Big-Endian systems
radeon: Fix VCE ring test for Big-Endian systems
radeon/cik: Fix GFX IB test on Big-Endian
fix the regression from "direct-io: Fix negative return from dio read beyond eof"
9p: ->evict_inode() should kick out ->i_data, not ->i_mapping
of/fdt: Add mutex protection for calls to __unflatten_device_tree()
ALSA: hda - Fixing speaker noise on the two latest thinkpad models
cxl: Set endianess of kernel contexts
powerpc/opal-irqchip: Fix deadlock introduced by "Fix double endian conversion"
powerpc/opal-irqchip: Fix double endian conversion
IB/srp: Fix possible send queue overflow
IB/srp: Fix a memory leak
virtio: fix memory leak of virtio ida cache layers
vhost: relax log address alignment
ALSA: hda - Add inverted dmic for Packard Bell DOTS
ALSA: rme96: Fix unexpected volume reset after rate changes
block: detach bdev inode from its wb in __blkdev_put()
jbd2: fix null committed data return in undo_access
usb: xhci: fix config fail of FS hub behind a HS hub with MTT
xhci: Fix memory leak in xhci_pme_acpi_rtd3_enable()
perf: Fix PERF_EVENT_IOC_PERIOD deadlock
SCSI: Fix NULL pointer dereference in runtime PM
dm thin metadata: fix bug in dm_thin_remove_range()
dm btree: fix leak of bufio-backed block in btree_split_sibling error path
usb: Use the USB_SS_MULT() macro to decode burst multiplier for log message
USB: whci-hcd: add check for dma mapping error
usb: core : hub: Fix BOS 'NULL pointer' kernel panic
irqchip/versatile-fpga: Fix PCI IRQ mapping on Versatile PB
staging: lustre: echo_copy.._lsm() dereferences userland pointers directly
usb-storage: Fix scsi-sd failure "Invalid field in cdb" for USB adapter JMicron
sata_sil: disable trim
AHCI: Fix softreset failed issue of Port Multiplier
ext4: fix an endianness bug in ext4_encrypted_follow_link()
ext4: fix an endianness bug in ext4_encrypted_zeroout()
drm/ttm: Fixed a read/write lock imbalance
jbd2: Fix unreclaimed pages after truncate in data=journal mode
ext4: Fix handling of extended tv_sec
USB: serial: Another Infineon flash loader USB ID
USB: cdc_acm: Ignore Infineon Flash Loader utility
USB: cp210x: Remove CP2110 ID from compatibility list
iio: adc: spmi-vadc: add missing of_node_put
iio: fix some warning messages
usb: gadget: pxa27x: fix suspend callback
fuse: break infinite loop in fuse_fill_write_pages()
cuse: fix memory leak
SUNRPC: Fix callback channel
gpio: omap: drop omap1 mpuio specific irq_mask/unmask callbacks
sched/core: Remove false-positive warning from wake_up_process()
isdn: Partially revert debug format string usage clean up
ipv4: igmp: Allow removing groups from a removed interface
ACPI / property: fix compile error for acpi_node_get_property_reference() when CONFIG_ACPI=n
sched/wait: Fix signal handling in bit wait helpers
drm: imx: convert to drm_crtc_send_vblank_event()
sched/rt: Hide the push_irq_work_func() declaration
remoteproc: avoid stack overflow in debugfs file
drm/rockchip: unset pgoff when mmap'ing gems
mac80211: fix off-channel mgmt-tx uninitialized variable usage
iwlwifi: mvm: don't overwrite the key indices in D3 entry
net: mvneta: add configuration for MBUS windows access protection
net: mvneta: fix bit assignment for RX packet irq enable
net: mvneta: fix bit assignment in MVNETA_RXQ_CONFIG_REG
Don't reset ->total_link_count on nested calls of vfs_path_lookup()
x86/signal: Fix restart_syscall number for x32 tasks
x86/mpx: Fix instruction decoder condition
drm/amdgpu: partially revert "drm/amdgpu: fix VM_CONTEXT*_PAGE_TABLE_END_ADDR" v2
ARM/arm64: KVM: correct PTE uncachedness check
sched/core: Clear the root_domain cpumasks in init_rootdomain()
drm: Fix an unwanted master inheritance v2
PM / Domains: Fix bad of_node_put() in failure paths of genpd_dev_pm_attach()
mac80211: do not actively scan DFS channels
wan/x25: Fix use-after-free in x25_asy_open_tty()
Fix a memory leak in scsi_host_dev_release()
virtio-gpu: use no-merge for fill-modes
drm/amdgpu: fix userptr flags check
direct-io: Fix negative return from dio read beyond eof
block: Always check queue limits for cloned requests
drm/i915: Don't override output type for DDI HDMI
ring-buffer: Update read stamp with first real commit on page
drm/i915: Mark uneven memory banks on gen4 desktop as unknown swizzling
mac80211: ensure we don't update tx power on a non-running sdata
advansys: fix big-endian builds
mac80211: mesh: fix call_rcu() usage
rtlwifi: rtl8821ae: Fix lockups on boot
ASoC: wm8962: correct addresses for HPF_C_0/1
crypto: talitos - Fix timing leak in ESP ICV verification
crypto: nx - Fix timing leak in GCM and CCM decryption
Bluetooth: Fix l2cap_chan leak in SMP
ASoC: rsnd: fixup SCU_SYS_INT_EN1 address
ARM: dts: Kirkwood: Fix QNAP TS219 power-off
ARM: 8454/1: OF implies OF_FLATTREE
thermal: fix thermal_zone_bind_cooling_device prototype
target: fix COMPARE_AND_WRITE non zero SGL offset data corruption
target: Fix race for SCF_COMPARE_AND_WRITE_POST checking
iscsi-target: Fix rx_login_comp hang after login failure
xen/gntdev: Grant maps should not be subject to NUMA balancing
nfs4: resend LAYOUTGET when there is a race that changes the seqid
NFSv4.1/pNFS: Don't request a minimal read layout beyond the end of file
drm/radeon: make some dpm errors debug only
ARM: orion5x: Fix legacy get_irqnr_and_base
ARM: dove: Fix legacy get_irqnr_and_base
ALSA: hda - Fix noise on Gigabyte Z170X mobo
PCI: Prevent out of bounds access in numa_node override
drm/radeon: make rv770_set_sw_state failures non-fatal
arm64: KVM: Fix AArch32 to AArch64 register mapping
ARM/arm64: KVM: test properly for a PTE's uncachedness
ARM: dts: vfxxx: Fix dspi[01] spi-num-chipselects.
ALSA: hda - Fix headphone noise after Dell XPS 13 resume back from S3
nfs4: limit callback decoding to received bytes
vfs: Avoid softlockups with sendfile(2)
vfs: Make sendfile(2) killable even better
fix sysvfs symlinks
dm thin: fix regression in advertised discard limits
ARC: dw2 unwind: Remove falllback linear search thru FDE entries
watchdog: omap_wdt: fix null pointer dereference
ARM: imx: add platform irq type setting in gpc
blk-mq: fix calling unplug callbacks with preempt disabled
ALSA: hda - Apply HP headphone fixups more generically
mac: validate mac_partition is within sector
dm crypt: fix a possible hang due to race condition on exit
ALSA: hda - Add fixup for Acer Aspire One Cloudbook 14
dm thin: restore requested 'error_if_no_space' setting on OODS to WRITE transition
ALSA: hda - Fix noise on Dell Latitude E6440
macvlan: fix leak in macvlan_handle_frame
ipvlan: fix use after free of skb
ipvlan: fix leak in ipvlan_rcv_frame
FS-Cache: Add missing initialization of ret in cachefiles_write_page()
mtd: nand: fix shutdown/reboot for multi-chip systems
net/mlx4_core: Avoid returning success in case of an error flow
perf symbols: Fix dso lookup by long name and missing buildids
stmmac: avoid ipq806x constant overflow warning
mmc: remove bondage between REQ_META and reliable write
parisc: Drop unused MADV_xxxK_PAGES flags from asm/mman.h
kernel/signal.c: unexport sigsuspend()
fat: fix fake_offset handling on error path
xhci: Fix a race in usb2 LPM resume, blocking U3 for usb2 devices
usb: chipidea: debug: disable usb irq while role switch
arm64: kernel: pause/unpause function graph tracer in cpu_suspend()
drm/i915: Don't clobber the addfb2 ioctl params
arm64: mm: use correct mapping granularity under DEBUG_RODATA
ext2, ext4: warn when mounting with dax enabled
USB: qcserial: Fix support for HP lt4112 LTE/HSPA+ Gobi 4G Modem
drm/amdgpu: Fix default page access routing
drm/radeon: unconditionally set sysfs_initialized
drm/radeon: Disable uncacheable CPU mappings of GTT with RV6xx
drm/i915: get runtime PM reference around GEM set_caching IOCTL
drm/i915: quirk backlight present on Macbook 4, 1
ipmi: Start the timer and thread on internal msgs
iio: adc: xilinx: Fix VREFN scale
iio: si7020: Swap data byte order
crypto: qat - don't use userspace pointer
mmc: mmc: Improve reliability of mmc_select_hs400()
mmc: mmc: Move mmc_switch_status()
mmc: mmc: Fix HS setting in mmc_select_hs400()
mmc: mmc: Improve reliability of mmc_select_hs200()
iio: adc: vf610_adc: Fix division by zero error
iio:ad7793: Fix ad7785 product ID
iio: ad5064: Fix ad5629/ad5669 shift
iio:ad5064: Make sure ad5064_i2c_write() returns 0 on success
iio: lpc32xx_adc: fix warnings caused by enabling unprepared clock
vf610_adc: Fix internal temperature calculation
tools: Add a "make all" rule