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** Branch linked: lp:ubuntu/trusty-proposed/linux-lts-wily

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https://bugs.launchpad.net/bugs/1556269

Title:
  Wily update to v4.2.8-ckt5 stable release

Status in linux package in Ubuntu:
  New
Status in linux source package in Wily:
  Fix Committed

Bug description:
  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-ckt5 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-ckt5 stable release shall
  be applied:

  Linux 4.2.8-ckt5
  pipe: limit the per-user amount of pages allocated in pipes
  netfilter: nfnetlink: correctly validate length of batch messages
  net: phy: bcm7xxx: Fix 40nm EPHY features
  net: phy: Avoid polling PHY with PHY_IGNORE_INTERRUPTS
  net: phy: Fix phy_mac_interrupt()
  s390/oprofile: fix address range for asynchronous stack
  net: phy: bcm7xxx: Fix bcm7xxx_config_init() check
  bonding: don't use stale speed and duplex information
  writeback: initialize inode members that track writeback history
  net: phy: bcm7xxx: Fix shadow mode 2 disabling
  net/mlx4_core: Fix potential corruption in counters database
  [media] exynos4-is: fix a format string bug
  MAINTAINERS: Remove stale entry for BCM33xx chips
  s390/stacktrace: fix address ranges for asynchronous and panic stack
  ARM: dts: kirkwood: use unique machine name for ds112
  Input: xpad - remove unused function
  netlink: not trim skb for mmaped socket when dump
  af_unix: Don't set err in unix_stream_read_generic unless there was an error
  batman-adv: Avoid endless loop in bat-on-bat netdevice check
  s390/perf_event: fix address range for asynchronous stack
  net/mlx4_core: Do not BUG_ON during reset when PCI is offline
  sctp: Fix port hash table size computation
  unix_diag: fix incorrect sign extension in unix_lookup_by_ino
  rtnl: RTM_GETNETCONF: fix wrong return value
  route: check and remove route cache when we get route
  pppoe: fix reference counting in PPPoE proxy
  l2tp: Fix error creating L2TP tunnels
  net/mlx4_en: Avoid changing dev->features directly in run-time
  net/mlx4_en: Choose time-stamping shift value according to HW frequency
  net/mlx4_en: Count HW buffer overrun only once
  qmi_wwan: add "4G LTE usb-modem U901"
  af_unix: Guard against other == sk in unix_dgram_sendmsg
  ipv4: fix memory leaks in ip_cmsg_send() callers
  bonding: Fix ARP monitor validation
  bpf: fix branch offset adjustment on backjumps after patching ctx expansion
  net: Copy inner L3 and L4 headers as unaligned on GRE TEB
  flow_dissector: Fix unaligned access in __skb_flow_dissector when used by eth_get_headlen
  sctp: translate network order to host order when users get a hmacid
  tg3: Fix for tg3 transmit queue 0 timed out when too many gso_segs
  net:Add sysctl_max_skb_frags
  unix: correctly track in-flight fds in sending process user_struct
  ipv6: fix a lockdep splat
  ipv6: addrconf: Fix recursive spin lock call
  net/ipv6: add sysctl option accept_ra_min_hop_limit
  ipv6/udp: use sticky pktinfo egress ifindex on connect()
  ipv6: enforce flowi6_oif usage in ip6_dst_lookup_tail()
  tcp: beware of alignments in tcp_get_info()
  switchdev: Require RTNL mutex to be held when sending FDB notifications
  sctp: allow setting SCTP_SACK_IMMEDIATELY by the application
  pptp: fix illegal memory access caused by multiple bind()s
  af_unix: fix struct pid memory leak
  tcp: fix NULL deref in tcp_v4_send_ack()
  net: dp83640: Fix tx timestamp overflow handling.
  af_iucv: Validate socket address length in iucv_sock_bind()
  do_last(): ELOOP failure exit should be done after leaving RCU mode
  should_follow_link(): validate ->d_seq after having decided to follow
  namei: ->d_inode of a pinned dentry is stable only for positives
  do_last(): don't let a bogus return value from ->open() et.al. to confuse us
  hpfs: don't truncate the file when delete fails
  ocfs2: unlock inode if deleting inode from orphan fails
  mm: thp: fix SMP race condition between THP page fault and MADV_DONTNEED
  x86/mpx: Fix off-by-one comparison with nr_registers
  ALSA: hda - Loop interrupt handling until really cleared
  ALSA: hda - Fix headset support and noise on HP EliteBook 755 G2
  ALSA: hda - Fixup speaker pass-through control for nid 0x14 on ALC225
  ALSA: hda/realtek - Support Dell headset mode for ALC225
  KVM: x86: MMU: fix ubsan index-out-of-range warning
  ALSA: hda - Fixing background noise on Dell Inspiron 3162
  libceph: use the right footer size when skipping a message
  libceph: don't bail early from try_read() when skipping a message
  tracing: Fix showing function event in available_events
  KVM: async_pf: do not warn on page allocation failures
  KVM: x86: fix missed hardware breakpoints
  ARCv2: SMP: Emulate IPI to self using software triggered interrupt
  KVM: arm/arm64: vgic: Ensure bitmaps are long enough
  sunrpc/cache: fix off-by-one in qword_get()
  ARM: OMAP2+: Fix onenand initialization to avoid filesystem corruption
  drm/amdgpu/pm: adjust display configuration after powerstate
  s390/compat: correct restore of high gprs on signal return
  dm: fix dm_rq_target_io leak on faults with .request_fn DM w/ blk-mq paths
  can: ems_usb: Fix possible tx overflow
  drivers: android: correct the size of struct binder_uintptr_t for BC_DEAD_BINDER_DONE
  kernel/resource.c: fix muxed resource handling in __request_region()
  hwmon: (gpio-fan) Remove un-necessary speed_index lookup for thermal hook
  nfit: fix multi-interface dimm handling, acpi6.1 compatibility
  ext4: fix crashes in dioread_nolock mode
  ext4: fix bh->b_state corruption
  hwmon: (ads1015) Handle negative conversion values correctly
  ipc/shm: handle removed segments gracefully in shm_mmap()
  ipc: convert invalid scenarios to use WARN_ON
  mm: fix regression in remap_file_pages() emulation
  USB: option: add "4G LTE usb-modem U901"
  USB: cp210x: add IDs for GE B650V3 and B850V3 boards
  USB: option: add support for SIM7100E
  ALSA: pcm: Fix rwsem deadlock for non-atomic PCM stream
  x86/mm: Fix vmalloc_fault() to handle large pages properly
  NFSv4: Fix a dentry leak on alias use
  powerpc/ioda: Set "read" permission when "write" is set
  usb: dwc3: Fix assignment of EP transfer resources
  x86/uaccess/64: Handle the caching of 4-byte nocache copies properly in __copy_user_nocache()
  x86/uaccess/64: Make the __copy_user_nocache() assembly code more readable
  drm: Fix treatment of drm_vblank_offdelay in drm_vblank_on() (v2)
  drm/qxl: use kmalloc_array to alloc reloc_info in qxl_process_single_command
  drm/radeon: use post-decrement in error handling
  drm/amdgpu: use post-decrement in error handling
  ALSA: seq: Fix double port list deletion
  tracing: Fix freak link error caused by branch tracer
  tracepoints: Do not trace when cpu is offline
  dmaengine: dw: disable BLOCK IRQs for non-cyclic xfer
  ALSA: hda - Cancel probe work instead of flush at remove
  ALSA: seq: Fix leak of pool buffer at concurrent writes
  xen/pcifront: Fix mysterious crashes when NUMA locality information was extracted.
  xen/pciback: Save the number of MSI-X entries to be copied later.
  xen/pciback: Check PF instead of VF for PCI_COMMAND_MEMORY
  powerpc/eeh: Fix stale cached primary bus
  iwlwifi: mvm: don't allow sched scans without matches to be started
  bio: return EINTR if copying to user space got interrupted
  ext4: don't read blocks from disk after extents being swapped
  ext4: fix potential integer overflow
  scsi: fix soft lockup in scsi_remove_target() on module removal
  irqchip/gic-v3-its: Fix double ICC_EOIR write for LPI in EOImode==1
  btrfs: properly set the termination value of ctx->pos in readdir
  ARM: 8519/1: ICST: try other dividends than 1
  s390/dasd: fix refcount for PAV reassignment
  s390/dasd: prevent incorrect length error under z/VM after PAV changes
  cifs: fix erroneous return value
  drm/amdgpu: fix issue with overlapping userptrs
  drm/radeon: hold reference to fences in radeon_sa_bo_new
  drm/amdgpu: remove unnecessary forward declaration
  drm/amdgpu: fix s4 resume
  workqueue: handle NUMA_NO_NODE for unbound pool_workqueue lookup
  ahci: Intel DNV device IDs SATA
  drm/i915: fix error path in intel_setup_gmbus()
  drm/i915/skl: Don't skip mst encoders in skl_ddi_pll_select()
  phy: twl4030-usb: Fix unbalanced pm_runtime_enable on module reload
  phy: twl4030-usb: Relase usb phy on unload
  phy: core: fix wrong err handle for phy_power_on
  ALSA: timer: Fix race at concurrent reads
  ALSA: hda - Fix bad dereference of jack object
  ALSA: timer: Fix race between stop and interrupt
  nfs: fix nfs_size_to_loff_t
  xen/scsiback: correct frontend counting
  ARM: 8517/1: ICST: avoid arithmetic overflow in icst_hz()
  ALSA: timer: Fix wrong instance passed to slave callbacks
  powerpc: Fix dedotify for binutils >= 2.26
  drm/i915/dsi: don't pass arbitrary data to sideband
  drm/i915/dsi: defend gpio table against out of bounds access
  ALSA: dummy: Implement timer backend switching more safely
  klist: fix starting point removed bug in klist iterators
  ALSA: hda - Fix speaker output from VAIO AiO machines
  pty: make sure super_block is still valid in final /dev/tty close
  pty: fix possible use after free of tty->driver_data
  tty: Add support for PCIe WCH382 2S multi-IO card
  serial: omap: Prevent DoS using unprivileged ioctl(TIOCSRS485)
  qla2xxx: Fix stale pointer access.
  target: Fix race with SCF_SEND_DELAYED_TAS handling
  crypto: marvell/cesa - fix test in mv_cesa_dev_dma_init()
  crypto: atmel-sha - fix atmel_sha_remove()
  crypto: algif_skcipher - Do not set MAY_BACKLOG on the async path
  crypto: user - lock crypto_alg_list on alg dump
  radix-tree: fix oops after radix_tree_iter_retry
  mm: replace vma_lock_anon_vma with anon_vma_lock_read/write
  ocfs2/dlm: clear refmap bit of recovery lock while doing local recovery cleanup
  mm, vmstat: fix wrong WQ sleep when memory reclaim doesn't make any progress
  dump_stack: avoid potential deadlocks
  target: Fix remote-port TMR ABORT + se_cmd fabric stop
  Revert "ALSA: hda - Fix noise on Gigabyte Z170X mobo"
  ALSA: hda - Fix static checker warning in patch_hdmi.c
  drm/dp/mst: deallocate payload on port destruction
  drm/dp/mst: Reverse order of MST enable and clearing VC payload table.
  drm/dp/mst: Calculate MST PBN with 31.32 fixed point
  drm: Add drm_fixp_from_fraction and drm_fixp2int_ceil
  drm: fix missing reference counting decrease
  SCSI: Add Marvell Console to VPD blacklist
  scsi_dh_rdac: always retry MODE SELECT on command lock violation
  Btrfs: fix hang on extent buffer lock caused by the inode_paths ioctl
  ARM: nomadik: fix up SD/MMC DT settings
  [media] saa7134-alsa: Only frees registered sound cards
  ALSA: timer: Fix leftover link at closing
  [media] tda1004x: only update the frontend properties if locked
  target: Fix TAS handling for multi-session se_node_acls
  target: Fix LUN_RESET active TMR descriptor handling
  target: Fix LUN_RESET active I/O handling for ACK_KREF
  target: Invoke release_cmd() callback without holding a spinlock
  xhci: Fix list corruption in urb dequeue at host removal
  usb: xhci: apply XHCI_PME_STUCK_QUIRK to Intel Broxton-M platforms
  usb: xhci: set SSIC port unused only if xhci_suspend succeeds
  usb: xhci: add a quirk bit for ssic port unused
  usb: xhci: handle both SSIC ports in PME stuck quirk
  Btrfs: fix page reading in extent_same ioctl leading to csum errors
  Btrfs: fix invalid page accesses in extent_same (dedup) ioctl
  btrfs: fix clone / extent-same deadlocks
  drivers/hwspinlock: fix race between radix tree insertion and lookup
  radix-tree: fix race in gang lookup
  drivers/scsi/sg.c: mark VMA as VM_IO to prevent migration
  ALSA: seq: Fix lockdep warnings due to double mutex locks
  ALSA: rawmidi: Fix race at copying & updating the position
  ALSA: rawmidi: Make snd_rawmidi_transmit() race-free
  ALSA: hda - Add fixup for Mac Mini 7,1 model
  module: wrapper for symbol name.
  modules: fix modparam async_probe request
  drm/amdgpu: drop topaz support from gmc8 module
  drm/amdgpu: pull topaz gmc bits into gmc_v7
  drm/amdgpu: The VI specific EXE bit should only apply to GMC v8.0 above
  drm/amdgpu: iceland use CI based MC IP
  drm/amdgpu: move gmc7 support out of CIK dependency
  ASoC: dpcm: fix the BE state on hw_free
  drm/amdgpu: mask out WC from BO on unsupported arches
  drm/radeon: mask out WC from BO on unsupported arches
  drm: add helper to check for wc memory support
  cputime: Prevent 32bit overflow in time[val|spec]_to_cputime()
  MIPS: Fix buffer overflow in syscall_get_arguments()
  libata: fix sff host state machine locking while polling
  ALSA: timer: Fix link corruption due to double start or stop
  ALSA: timer: Code cleanup
  ALSA: seq: Fix yet another races among ALSA timer accesses
  ALSA: pcm: Fix potential deadlock in OSS emulation
  ALSA: rawmidi: Remove kernel WARNING for NULL user-space buffer check
  ALSA: seq: Fix race at closing in virmidi driver
  intel_scu_ipcutil: underflow in scu_reg_access()
  iio: pressure: mpl115: fix temperature offset sign
  iio: inkern: fix a NULL dereference on error
  crypto: algif_hash - wait for crypto_ahash_init() to complete
  target: Fix WRITE_SAME/DISCARD conversion to linux 512b sectors
  ALSA: usb-audio: Add quirk for Microsoft LifeCam HD-6000
  ALSA: usb-audio: Add native DSD support for PS Audio NuWave DAC
  ALSA: usb-audio: Fix OPPO HA-1 vendor ID
  drm/i915/dp: fall back to 18 bpp when sink capability is unknown
  spi: atmel: fix gpio chip-select in case of non-DT platform
  Input: vmmouse - fix absolute device registration
  crypto: shash - Fix has_key setting
  ARM: dts: at91: sama5d4 xplained: fix phy0 IRQ type
  ARM: dts: at91: sama5d4ek: add phy address and IRQ for macb0
  ARM: dts: at91: sama5d4: fix instance id of DBGU
  rfkill: fix rfkill_fop_read wait_event usage
  mac80211: Requeue work after scan complete for all VIF types.
  libata: disable forced PORTS_IMPL for >= AHCI 1.3
  ARM: dts: Fix wl12xx missing clocks that cause hangs
  PCI/AER: Flush workqueue on device remove to avoid use-after-free
  rtlwifi: rtl8821ae: Fix 5G failure when EEPROM is incorrectly encoded
  ARM: OMAP2+: Fix ppa_zero_params and ppa_por_params for rodata
  ARM: OMAP2+: Fix l2_inv_api_params for rodata
  ARM: OMAP2+: Fix save_secure_ram_context for rodata
  ARM: OMAP2+: Fix l2dis_3630 for rodata
  ARM: OMAP2+: Fix wait_dll_lock_timed for rodata
  cgroup: make sure a parent css isn't offlined before its children
  ARCv2: STAR 9000950267: Handle return from intr to Delay Slot #2
  ASoC: rt5645: fix the shift bit of IN1 boost
  iio:adc:ti_am335x_adc Fix buffered mode by identifying as software buffer.
  iio: light: acpi-als: Report data as processed
  iommu/vt-d: Fix 64-bit accesses to 32-bit DMAR_GSTS_REG
  iio: dac: mcp4725: set iio name property in sysfs
  iio: add HAS_IOMEM dependency to VF610_ADC
  iio: add IIO_TRIGGER dependency to STK8BA50
  iio-light: Use a signed return type for ltr501_match_samp_freq()
  x86/entry/compat: Add missing CLAC to entry_INT80_32
  Revert "workqueue: make sure delayed work run in local cpu"
  vmstat: explicitly schedule per-cpu work on the CPU we need it to run on
  EVM: Use crypto_memneq() for digest comparisons
  iw_cxgb3: Fix incorrectly returning error on success
  ASN.1: Fix non-match detection failure on data overrun
  [media] usbvision: fix crash on detecting device with invalid configuration
  [media] usbvision fix overflow of interfaces array

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