Bionic update to v4.15.6 stable release

[Seth Forshee]

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 v4.15.6 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 v4.15.6 stable release shall be applied:

tun: fix tun_napi_alloc_frags() frag allocator
ptr_ring: fail early if queue occupies more than KMALLOC_MAX_SIZE
ptr_ring: try vmalloc() when kmalloc() fails
selinux: ensure the context is NUL terminated in security_context_to_sid_core()
selinux: skip bounded transition processing if the policy isn't loaded
media: pvrusb2: properly check endpoint types
crypto: x86/twofish-3way - Fix %rbp usage
staging: android: ion: Add __GFP_NOWARN for system contig heap
staging: android: ion: Switch from WARN to pr_warn
blk_rq_map_user_iov: fix error override
KVM: x86: fix escape of guest dr6 to the host
kcov: detect double association with a single task
netfilter: x_tables: fix int overflow in xt_alloc_table_info()
netfilter: x_tables: avoid out-of-bounds reads in xt_request_find_{match|target}
netfilter: ipt_CLUSTERIP: fix out-of-bounds accesses in clusterip_tg_check()
netfilter: on sockopt() acquire sock lock only in the required scope
netfilter: xt_cgroup: initialize info->priv in cgroup_mt_check_v1()
netfilter: xt_RATEEST: acquire xt_rateest_mutex for hash insert
rds: tcp: correctly sequence cleanup on netns deletion.
rds: tcp: atomically purge entries from rds_tcp_conn_list during netns delete
net: avoid skb_warn_bad_offload on IS_ERR
net_sched: gen_estimator: fix lockdep splat
soc: qcom: rmtfs_mem: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE
ASoC: ux500: add MODULE_LICENSE tag
video: fbdev/mmp: add MODULE_LICENSE
ARM: 8743/1: bL_switcher: add MODULE_LICENSE tag
arm64: dts: add #cooling-cells to CPU nodes
dn_getsockoptdecnet: move nf_{get/set}sockopt outside sock lock
ANDROID: binder: remove WARN() for redundant txn error
ANDROID: binder: synchronize_rcu() when using POLLFREE.
staging: android: ashmem: Fix a race condition in pin ioctls
binder: check for binder_thread allocation failure in binder_poll()
binder: replace "%p" with "%pK"
staging: fsl-mc: fix build testing on x86
staging: iio: adc: ad7192: fix external frequency setting
staging: iio: ad5933: switch buffer mode to software
xhci: Fix NULL pointer in xhci debugfs
xhci: Fix xhci debugfs devices node disappearance after hibernation
xhci: xhci debugfs device nodes weren't removed after device plugged out
xhci: fix xhci debugfs errors in xhci_stop
usbip: keep usbip_device sockfd state in sync with tcp_socket
crypto: s5p-sss - Fix kernel Oops in AES-ECB mode
mei: me: add cannon point device ids
mei: me: add cannon point device ids for 4th device
vmalloc: fix __GFP_HIGHMEM usage for vmalloc_32 on 32b systems
Linux 4.15.6

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 4.15.0-12.13

---------------
linux (4.15.0-12.13) bionic; urgency=medium

  * linux: 4.15.0-12.13 -proposed tracker (LP: #1754059)

  * CONFIG_EFI=y on armhf (LP: #1726362)
    - [Config] CONFIG_EFI=y on armhf, reconcile secureboot EFI settings

  * ppc64el: Support firmware disable of RFI flush (LP: #1751994)
    - powerpc/pseries: Support firmware disable of RFI flush
    - powerpc/powernv: Support firmware disable of RFI flush

  * [Feature] CFL/CNL (PCH:CNP-H): New GPIO Commit added (GPIO Driver needed)
    (LP: #1751714)
    - gpio / ACPI: Drop unnecessary ACPI GPIO to Linux GPIO translation
    - pinctrl: intel: Allow custom GPIO base for pad groups
    - pinctrl: cannonlake: Align GPIO number space with Windows

  * [Feature] Add xHCI debug device support in the driver (LP: #1730832)
    - usb: xhci: Make some static functions global
    - usb: xhci: Add DbC support in xHCI driver
    - [Config] USB_XHCI_DBGCAP=y for commit mainline dfba2174dc42.

  * [SRU] Lenovo E41 Mic mute hotkey is not responding (LP: #1753347)
    - platform/x86: ideapad-laptop: Increase timeout to wait for EC answer

  * headset mic can't be detected on two Dell machines (LP: #1748807)
    - ALSA: hda - Fix a wrong FIXUP for alc289 on Dell machines

  * hisi_sas: Add disk LED support (LP: #1752695)
    - scsi: hisi_sas: directly attached disk LED feature for v2 hw

  * [Feature] [Graphics]Whiskey Lake (Coffelake-U 4+2) new PCI Device ID adds
    (LP: #1742561)
    - drm/i915/cfl: Adding more Coffee Lake PCI IDs.

  * [Bug] [USB Function][CFL-CNL PCH]Stall Error and USB Transaction Error in
    trace, Disable of device-initiated U1/U2 failed and rebind failed: -517
    during suspend/resume with usb storage. (LP: #1730599)
    - usb: Don't print a warning if interface driver rebind is deferred at resume

  * retpoline: ignore %cs:0xNNN constant indirections (LP: #1752655)
    - [Packaging] retpoline -- elide %cs:0xNNNN constants on i386
    - [Config] retpoline -- clean up i386 retpoline files

  * hisilicon hibmc regression due to ea642c3216cb ("drm/ttm: add io_mem_pfn
    callback") (LP: #1738334)
    - drm/ttm: add ttm_bo_io_mem_pfn to check io_mem_pfn

  * [Asus UX360UA] battery status in unity-panel is not changing when battery is
    being charged (LP: #1661876) // AC adapter status not detected on Asus
    ZenBook UX410UAK (LP: #1745032)
    - ACPI / battery: Add quirk for Asus UX360UA and UX410UAK

  * ASUS UX305LA - Battery state not detected correctly (LP: #1482390)
    - ACPI / battery: Add quirk for Asus GL502VSK and UX305LA

  * [18.04 FEAT] Automatically detect layer2 setting in the qeth device driver
    (LP: #1747639)
    - s390/diag: add diag26c support for VNIC info
    - s390/qeth: support early setup for z/VM NICs

  * Bionic update to v4.15.7 stable release (LP: #1752317)
    - netfilter: drop outermost socket lock in getsockopt()
    - arm64: mm: don't write garbage into TTBR1_EL1 register
    - kconfig.h: Include compiler types to avoid missed struct attributes
    - MIPS: boot: Define __ASSEMBLY__ for its.S build
    - xtensa: fix high memory/reserved memory collision
    - scsi: ibmvfc: fix misde...