Xenial update to 4.4.111 stable release

[Khaled El Mously]

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 4.4.111 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 4.4.111 stable release shall be applied:
* x86/kasan: Write protect kasan zero shadow
* kernel/acct.c: fix the acct->needcheck check in check_free_space()
* crypto: n2 - cure use after free
* crypto: chacha20poly1305 - validate the digest size
* crypto: pcrypt - fix freeing pcrypt instances
* sunxi-rsb: Include OF based modalias in device uevent
* fscache: Fix the default for fscache_maybe_release_page()
* kernel: make groups_sort calling a responsibility group_info allocators
* kernel/signal.c: protect the traced SIGNAL_UNKILLABLE tasks from SIGKILL
* kernel/signal.c: protect the SIGNAL_UNKILLABLE tasks from !sig_kernel_only() signals
* kernel/signal.c: remove the no longer needed SIGNAL_UNKILLABLE check in complete_signal()
* ARC: uaccess: dont use "l" gcc inline asm constraint modifier
* Input: elantech - add new icbody type 15
* x86/microcode/AMD: Add support for fam17h microcode loading
* parisc: Fix alignment of pa_tlb_lock in assembly on 32-bit SMP kernel
* x86/tlb: Drop the _GPL from the cpu_tlbstate export
* genksyms: Handle string literals with spaces in reference files
* module: keep percpu symbols in module's symtab
* module: Issue warnings when tainting kernel
* proc: much faster /proc/vmstat
* Map the vsyscall page with _PAGE_USER
* Fix build error in vma.c
* Linux 4.4.111

[Khaled El Mously (kmously)]

The following patches were NOT applied as they were already applied previously:

 * x86/microcode/AMD: Add support for fam17h microcode loading
 * x86/tlb: Drop the _GPL from the cpu_tlbstate export
 * module: keep percpu symbols in module's symtab
 * Map the vsyscall page with _PAGE_USER

[Stefan Bader (smb)]

Skipped at application time as already applied:
* Input: elantech - add new icbody type 15 (bug #1733605)

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 4.4.0-119.143

---------------
linux (4.4.0-119.143) xenial; urgency=medium

  * linux: 4.4.0-119.143 -proposed tracker (LP: #1760327)

  * Dell XPS 13 9360 bluetooth scan can not detect any device (LP: #1759821)
    - Revert "Bluetooth: btusb: fix QCA Rome suspend/resume"

linux (4.4.0-118.142) xenial; urgency=medium

  * linux: 4.4.0-118.142 -proposed tracker (LP: #1759607)

  * Kernel panic with AWS 4.4.0-1053 / 4.4.0-1015 (Trusty) (LP: #1758869)
    - x86/microcode/AMD: Do not load when running on a hypervisor

  * CVE-2018-8043
    - net: phy: mdio-bcm-unimac: fix potential NULL dereference in
      unimac_mdio_probe()

linux (4.4.0-117.141) xenial; urgency=medium

  * linux: 4.4.0-117.141 -proposed tracker (LP: #1755208)

  * Xenial update to 4.4.114 stable release (LP: #1754592)
    - x86/asm/32: Make sync_core() handle missing CPUID on all 32-bit kernels
    - usbip: prevent vhci_hcd driver from leaking a socket pointer address
    - usbip: Fix implicit fallthrough warning
    - usbip: Fix potential format overflow in userspace tools
    - x86/microcode/intel: Fix BDW late-loading revision check
    - x86/retpoline: Fill RSB on context switch for affected CPUs
    - sched/deadline: Use the revised wakeup rule for suspending constrained dl
      tasks
    - can: af_can: can_rcv(): replace WARN_ONCE by pr_warn_once
    - can: af_can: canfd_rcv(): replace WARN_ONCE by pr_warn_once
    - PM / sleep: declare __tracedata symbols as char[] rather than char
    - time: Avoid undefined behaviour in ktime_add_safe()
    - timers: Plug locking race vs. timer migration
    - Prevent timer value 0 for MWAITX
    - drivers: base: cacheinfo: fix x86 with CONFIG_OF enabled
    - drivers: base: cacheinfo: fix boot error message when acpi is enabled
    - PCI: layerscape: Add "fsl,ls2085a-pcie" compatible ID
    - PCI: layerscape: Fix MSG TLP drop setting
    - mmc: sdhci-of-esdhc: add/remove some quirks according to vendor version
    - fs/select: add vmalloc fallback for select(2)
    - hwpoison, memcg: forcibly uncharge LRU pages
    - cma: fix calculation of aligned offset
    - mm, page_alloc: fix potential false positive in __zone_watermark_ok
    - ipc: msg, make msgrcv work with LONG_MIN
    - x86/ioapic: Fix incorrect pointers in ioapic_setup_resources()
    - ACPI / processor: Avoid reserving IO regions too early
    - ACPI / scan: Prefer devices without _HID/_CID for _ADR matching
    - ACPICA: Namespace: fix operand cache leak
    - netfilter: x_tables: speed up jump target validation
    - netfilter: arp_tables: fix invoking 32bit "iptable -P INPUT ACCEPT" failed
      in 64bit kernel
    - netfilter: nf_dup_ipv6: set again FLOWI_FLAG_KNOWN_NH at flowi6_flags
    - netfilter: nf_ct_expect: remove the redundant slash when policy name is
      empty
    - netfilter: nfnetlink_queue: reject verdict request from different portid
    - netfilter: restart search if moved to other chain
    - netfilter: nf_conntrack_sip: extend request line validation
    - netfilter: use fwmark_reflect in nf_send_reset
    - ext2: Don't clear SGID when inheriting ACLs
    - reiserfs: fix race in prealloc discard
    - re...