Xenial update to 4.4.68 stable release

[Stefan Bader]

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 4.4.68 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 4.4.68 stable release shall be applied:
* 9p: fix a potential acl leak
* ARM: 8452/3: PJ4: make coprocessor access sequences buildable in Thumb2
  mode
* cpupower: Fix turbo frequency reporting for pre-Sandy Bridge cores
* powerpc/powernv: Fix opal_exit tracepoint opcode
* power: supply: bq24190_charger: Fix irq trigger to IRQF_TRIGGER_FALLING
* power: supply: bq24190_charger: Call set_mode_host() on pm_resume()
* power: supply: bq24190_charger: Install irq_handler_thread() at end of
  probe()
* power: supply: bq24190_charger: Call power_supply_changed() for relevant
  component
* power: supply: bq24190_charger: Don't read fault register outside
  irq_handle_thread()
* power: supply: bq24190_charger: Handle fault before status on interrupt
* leds: ktd2692: avoid harmless maybe-uninitialized warning
* ARM: OMAP5 / DRA7: Fix HYP mode boot for thumb2 build
* mwifiex: debugfs: Fix (sometimes) off-by-1 SSID print
* mwifiex: remove redundant dma padding in AMSDU
* mwifiex: Avoid skipping WEP key deletion for AP
* x86/ioapic: Restore IO-APIC irq_chip retrigger callback
* x86/pci-calgary: Fix iommu_free() comparison of unsigned expression >= 0
* clk: Make x86/ conditional on CONFIG_COMMON_CLK
* kprobes/x86: Fix kernel panic when certain exception-handling addresses are
  probed
* x86/platform/intel-mid: Correct MSI IRQ line for watchdog device
* Revert "KVM: nested VMX: disable perf cpuid reporting"
* KVM: nVMX: initialize PML fields in vmcs02
* KVM: nVMX: do not leak PML full vmexit to L1
* usb: host: ehci-exynos: Decrese node refcount on exynos_ehci_get_phy()
  error paths
* usb: host: ohci-exynos: Decrese node refcount on exynos_ehci_get_phy()
  error paths
* usb: chipidea: Only read/write OTGSC from one place
* usb: chipidea: Handle extcon events properly
* USB: serial: keyspan_pda: fix receive sanity checks
* USB: serial: digi_acceleport: fix incomplete rx sanity check
* USB: serial: ssu100: fix control-message error handling
* USB: serial: io_edgeport: fix epic-descriptor handling
* USB: serial: ti_usb_3410_5052: fix control-message error handling
* USB: serial: ark3116: fix open error handling
* USB: serial: ftdi_sio: fix latency-timer error handling
* USB: serial: quatech2: fix control-message error handling
* USB: serial: mct_u232: fix modem-status error handling
* USB: serial: io_edgeport: fix descriptor error handling
* phy: qcom-usb-hs: Add depends on EXTCON
* serial: 8250_omap: Fix probe and remove for PM runtime
* scsi: mac_scsi: Fix MAC_SCSI=m option when SCSI=m
* MIPS: R2-on-R6 MULTU/MADDU/MSUBU emulation bugfix
* brcmfmac: Ensure pointer correctly set if skb data location changes
* brcmfmac: Make skb header writable before use
* staging: wlan-ng: add missing byte order conversion
* staging: emxx_udc: remove incorrect __init annotations
* ALSA: hda - Fix deadlock of controller device lock at unbinding
* tcp: do not underestimate skb->truesize in tcp_trim_head()
* bpf, arm64: fix jit branch offset related to ldimm64
* tcp: fix wraparound issue in tcp_lp
* tcp: do not inherit fastopen_req from parent
* ipv4, ipv6: ensure raw socket message is big enough to hold an IP header
* rtnetlink: NUL-terminate IFLA_PHYS_PORT_NAME string
* ipv6: initialize route null entry in addrconf_init()
* ipv6: reorder ip6_route_dev_notifier after ipv6_dev_notf
* bnxt_en: allocate enough space for ->ntp_fltr_bmap
* f2fs: sanity check segment count
* drm/ttm: fix use-after-free races in vm fault handling
* block: get rid of blk_integrity_revalidate()
* Linux 4.4.68

[Stefan Bader (smb)]

The patch "block: get rid of blk_integrity_revalidate()" had to be adjusted due to having "block: Use pointer to backing_dev_info from request_queue" backported for bug #1659111 "UbuntuKVM guest crashed while running I/O stress test with Ubuntu kernel 4.4.0-47-generic".

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 4.4.0-83.106

---------------
linux (4.4.0-83.106) xenial; urgency=low

  * linux: 4.4.0-83.106 -proposed tracker (LP: #1700541)

  * CVE-2017-1000364
    - Revert "UBUNTU: SAUCE: mm: Only expand stack if guard area is hit"
    - Revert "mm: do not collapse stack gap into THP"
    - Revert "mm: enlarge stack guard gap"
    - mm: vma_adjust: remove superfluous confusing update in remove_next == 1 case
    - mm: larger stack guard gap, between vmas
    - mm: fix new crash in unmapped_area_topdown()
    - Allow stack to grow up to address space limit

linux (4.4.0-82.105) xenial; urgency=low

  * linux: 4.4.0-82.105 -proposed tracker (LP: #1699064)

  * CVE-2017-1000364
    - SAUCE: mm: Only expand stack if guard area is hit

  * linux-aws/linux-gke incorrectly producing and using linux-*-tools-
    common/linux-*-cloud-tools-common (LP: #1688579)
    - [Config] make linux-tools-common and linux-cloud-tools-common protection
      consistent

  * CVE-2017-9242
    - ipv6: fix out of bound writes in __ip6_append_data()

  * CVE-2017-9075
    - sctp: do not inherit ipv6_{mc|ac|fl}_list from parent

  * CVE-2017-9074
    - ipv6: Prevent overrun when parsing v6 header options

  * CVE-2017-9076
    - ipv6/dccp: do not inherit ipv6_mc_list from parent

  * CVE-2017-9077
    - ipv6/dccp: do not inherit ipv6_mc_list from parent

  * CVE-2017-8890
    - dccp/tcp: do not inherit mc_list from parent

  * Module signing exclusion for staging drivers does not work properly
    (LP: #1690908)
    - SAUCE: Fix module signing exclusion in package builds

  * extend-diff-ignore should use exact matches (LP: #1693504)
    - [Packaging] exact extend-diff-ignore matches

  * Dell XPS 9360 wifi 5G performance is poor (LP: #1692836)
    - SAUCE: ath10k: fix the wifi speed issue for kill 1535

  * Upgrade Redpine WLAN/BT driver to ver. 1.2.RC12 (LP: #1694607)
    - SAUCE: Redpine: Upgrade to ver. 1.2.RC12

  * [DP MST] No audio output through HDMI/DP/mDP ports in Dell WD15 and TB15
    docking stations (LP: #1694665)
    - drm/i915: Store port enum in intel_encoder
    - drm/i915: Eliminate redundant local variable definition
    - drm/i915: Switch to using port stored in intel_encoder
    - drm/i915: Move audio_connector to intel_encoder
    - drm/i915/dp: DP audio API changes for MST
    - drm/i915: abstract ddi being audio enabled
    - drm/i915/audio: extend get_saved_enc() to support more scenarios
    - drm/i915: enable dp mst audio

  * Xenial update to 4.4.70 stable release (LP: #1694621)
    - usb: misc: legousbtower: Fix buffers on stack
    - usb: misc: legousbtower: Fix memory leak
    - USB: ene_usb6250: fix DMA to the stack
    - watchdog: pcwd_usb: fix NULL-deref at probe
    - char: lp: fix possible integer overflow in lp_setup()
    - USB: core: replace %p with %pK
    - ARM: tegra: paz00: Mark panel regulator as enabled on boot
    - tpm_crb: check for bad response size
    - infiniband: call ipv6 route lookup via the stub interface
    - dm btree: fix for dm_btree_find_lowest_key()
    - dm raid: select the Kconfig option CONFIG_MD_RAID0
    - dm bufio: avoid a possible ABBA deadlock
    - dm bufio: check ...