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[Launchpad Bug Tracker <1561677@xxxxxxxxxxxxxxxxxx>]

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

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https://bugs.launchpad.net/bugs/1561677

Title:
  Wily update to v4.2.8-ckt6 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-ckt6 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-ckt6 stable release shall
  be applied:

  Linux 4.2.8-ckt6
  mld, igmp: Fix reserved tailroom calculation
  net: moxa: fix an error code
  net: qca_spi: Don't clear IFF_BROADCAST
  cdc_ncm: do not call usbnet_link_change from cdc_ncm_bind
  net/mlx5e: Remove wrong poll CQ optimization
  ipv6: re-enable fragment header matching in ipv6_find_hdr
  net/mlx4_core: Allow resetting VF admin mac to zero
  ppp: release rtnl mutex when interface creation fails
  ext4: iterate over buffer heads correctly in move_extent_per_page()
  tcp: convert cached rtt from usec to jiffies when feeding initial rto
  be2net: Don't leak iomapped memory on removal.
  tcp: fix tcpi_segs_in after connection establishment
  MIPS: smp.c: Fix uninitialised temp_foreign_map
  dmaengine: pxa_dma: fix cyclic transfers
  IB/core: Use GRH when the path hop-limit > 0
  MIPS: Fix build error when SMP is used without GIC
  dmaengine: at_xdmac: fix residue computation
  KVM: MMU: fix ept=0/pte.u=1/pte.w=0/CR0.WP=0/CR4.SMEP=1/EFER.NX=0 combo
  tracing: Fix check for cpu online when event is disabled
  arm64: account for sparsemem section alignment when choosing vmemmap offset
  KVM: VMX: disable PEBS before a guest entry
  jffs2: reduce the breakage on recovery from halfway failed rename()
  ncpfs: fix a braino in OOM handling in ncp_fill_cache()
  KVM: PPC: Book3S HV: Sanitize special-purpose register values on guest exit
  PCI: Allow a NULL "parent" pointer in pci_bus_assign_domain_nr()
  ARM: dts: dra7: do not gate cpsw clock due to errata i877
  ARM: OMAP2+: hwmod: Introduce ti,no-idle dt property
  target: Drop incorrect ABORT_TASK put for completed commands
  ubi: Fix out of bounds write in volume update code
  MIPS: traps: Fix SIGFPE information leak from `do_ov' and `do_trap_or_bp'
  ovl: ignore lower entries when checking purity of non-directory entries
  ovl: fix getcwd() failure after unsuccessful rmdir
  ovl: fix working on distributed fs as lower layer
  ALSA: hda - Fix mic issues on Acer Aspire E1-472
  PM / sleep / x86: Fix crash on graph trace through x86 suspend
  drm/amdgpu: return from atombios_dp_get_dpcd only when error
  drm/radeon/pm: update current crtc info after setting the powerstate
  drm/amdgpu/pm: update current crtc info after setting the powerstate
  USB: qcserial: add Sierra Wireless EM74xx device ID
  drm/ast: Fix incorrect register check for DRAM width
  parisc: Fix ptrace syscall number and return value modification
  ALSA: seq: oss: Don't drain at closing a client
  i2c: brcmstb: allocate correct amount of memory for regmap
  mac80211: Fix Public Action frame RX in AP mode
  mac80211: check PN correctly for GCMP-encrypted fragmented MPDUs
  ALSA: usb-audio: Add a quirk for Plantronics DA45
  USB: serial: option: add support for Quectel UC20
  USB: serial: option: add support for Telit LE922 PID 0x1045
  ASoC: wm_adsp: Fix enum ctl accesses in a wrong type
  ASoC: wm8994: Fix enum ctl accesses in a wrong type
  ASoC: wm8958: Fix enum ctl accesses in a wrong type
  ASoC: dapm: Fix ctl value accesses in a wrong type
  USB: cp210x: Add ID for Parrot NMEA GPS Flight Recorder
  USB: qcserial: add Dell Wireless 5809e Gobi 4G HSPA+ (rev3)
  use ->d_seq to get coherency between ->d_inode and ->d_flags
  ALSA: hdsp: Fix wrong boolean ctl value accesses
  ALSA: hdspm: Fix zero-division
  ALSA: hdspm: Fix wrong boolean ctl value accesses
  MIPS: kvm: Fix ioctl error handling.
  arm/arm64: KVM: Fix ioctl error handling
  Fix cifs_uniqueid_to_ino_t() function for s390x
  CIFS: Fix SMB2+ interim response processing for read requests
  cifs: fix out-of-bounds access in lease parsing
  ALSA: timer: Fix ioctls for X32 ABI
  ALSA: timer: Fix broken compat timer user status ioctl
  ALSA: rawmidi: Fix ioctls X32 ABI
  ALSA: pcm: Fix ioctls for X32 ABI
  ALSA: ctl: Fix ioctls for X32 ABI
  vfio: fix ioctl error handling
  arm64: vmemmap: use virtual projection of linear region
  KVM: x86: fix root cause for missed hardware breakpoints
  fbcon: set a default value to blink interval
  can: gs_usb: fixed disconnect bug by removing erroneous use of kfree()
  libata: Align ata_device's id on a cacheline
  iommu/amd: Apply workaround for ATS write permission check
  iommu/amd: Fix boot warning when device 00:00.0 is not iommu covered
  Fix directory hardlinks from deleted directories
  jffs2: Fix page lock / f->sem deadlock
  Revert "jffs2: Fix lock acquisition order bug in jffs2_write_begin"
  usb: chipidea: otg: change workqueue ci_otg as freezable
  mac80211: minstrel_ht: set default tx aggregation timeout to 0
  ASoC: samsung: Use IRQ safe spin lock calls
  Adding Intel Lewisburg device IDs for SATA
  ahci: Order SATA device IDs for codename Lewisburg
  ahci: add new Intel device IDs
  [media] adv7604: fix tx 5v detect regression
  iwlwifi: mvm: inc pending frames counter also when txing non-sta
  libata: fix HDIO_GET_32BIT ioctl
  mac80211: minstrel: Change expected throughput unit back to Kbps
  mac80211: fix use of uninitialised values in RX aggregation
  cfg80211/wext: fix message ordering
  wext: fix message delay/ordering
  Input: aiptek - fix crash on detecting device without endpoints
  s390/mm: four page table levels vs. fork
  tipc: fix nullptr crash during subscription cancel
  tipc: fix connection abort during subscription cancel

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