Cosmic update: 4.18.18 upstream stable release

[Kamal Mostafa]

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 following upstream
       stable patches should be included in the Ubuntu kernel:

       4.18.18 upstream stable release
       from git://git.kernel.org/

eeprom: at24: Add support for address-width property
vfs: swap names of {do,vfs}_clone_file_range()
bpf: fix partial copy of map_ptr when dst is scalar
gpio: mxs: Get rid of external API call
clk: sunxi-ng: sun4i: Set VCO and PLL bias current to lowest setting
fscache: Fix incomplete initialisation of inline key space
cachefiles: fix the race between cachefiles_bury_object() and rmdir(2)
fscache: Fix out of bound read in long cookie keys
ptp: fix Spectre v1 vulnerability
drm/edid: Add 6 bpc quirk for BOE panel in HP Pavilion 15-n233sl
drm/edid: VSDB yCBCr420 Deep Color mode bit definitions
drm: fb-helper: Reject all pixel format changing requests
RDMA/ucma: Fix Spectre v1 vulnerability
IB/ucm: Fix Spectre v1 vulnerability
cdc-acm: do not reset notification buffer index upon urb unlinking
cdc-acm: correct counting of UART states in serial state notification
cdc-acm: fix race between reset and control messaging
usb: usbip: Fix BUG: KASAN: slab-out-of-bounds in vhci_hub_control()
usb: gadget: storage: Fix Spectre v1 vulnerability
usb: roles: intel_xhci: Fix Unbalanced pm_runtime_enable
usb: xhci: pci: Enable Intel USB role mux on Apollo Lake platforms
USB: fix the usbfs flag sanitization for control transfers
tracing: Fix synthetic event to accept unsigned modifier
tracing: Fix synthetic event to allow semicolon at end
Input: elan_i2c - add ACPI ID for Lenovo IdeaPad 330-15IGM
drm/sun4i: Fix an ulong overflow in the dotclock driver
sched/fair: Fix throttle_list starvation with low CFS quota
x86/tsc: Force inlining of cyc2ns bits
x86, hibernate: Fix nosave_regions setup for hibernation
x86/percpu: Fix this_cpu_read()
x86/time: Correct the attribute on jiffies' definition
x86/swiotlb: Enable swiotlb for > 4GiG RAM on 32-bit kernels
x86/fpu: Fix i486 + no387 boot crash by only saving FPU registers on context switch if there is an FPU
Linux 4.18.18

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 4.18.0-14.15

---------------
linux (4.18.0-14.15) cosmic; urgency=medium

  * linux: 4.18.0-14.15 -proposed tracker (LP: #1811406)

  * CPU hard lockup with rigorous writes to NVMe drive (LP: #1810998)
    - blk-wbt: Avoid lock contention and thundering herd issue in wbt_wait
    - blk-wbt: move disable check into get_limit()
    - blk-wbt: use wq_has_sleeper() for wq active check
    - blk-wbt: fix has-sleeper queueing check
    - blk-wbt: abstract out end IO completion handler
    - blk-wbt: improve waking of tasks

  * To reduce the Realtek USB cardreader power consumption (LP: #1811337)
    - mmc: core: Introduce MMC_CAP_SYNC_RUNTIME_PM
    - mmc: rtsx_usb_sdmmc: Don't runtime resume the device while changing led
    - mmc: rtsx_usb_sdmmc: Re-work runtime PM support
    - mmc: rtsx_usb_sdmmc: Re-work card detection/removal support
    - memstick: rtsx_usb_ms: Add missing pm_runtime_disable() in probe function
    - misc: rtsx_usb: Use USB remote wakeup signaling for card insertion detection
    - memstick: Prevent memstick host from getting runtime suspended during card
      detection
    - memstick: rtsx_usb_ms: Use ms_dev() helper
    - memstick: rtsx_usb_ms: Support runtime power management

  * Support non-strict iommu mode on arm64 (LP: #1806488)
    - iommu/io-pgtable-arm: Fix race handling in split_blk_unmap()
    - iommu/arm-smmu-v3: Implement flush_iotlb_all hook
    - iommu/dma: Add support for non-strict mode
    - iommu: Add "iommu.strict" command line option
    - iommu/io-pgtable-arm: Add support for non-strict mode
    - iommu/arm-smmu-v3: Add support for non-strict mode
    - iommu/io-pgtable-arm-v7s: Add support for non-strict mode
    - iommu/arm-smmu: Support non-strict mode

  * [Regression] crashkernel fails on HiSilicon D05 (LP: #1806766)
    - efi: honour memory reservations passed via a linux specific config table
    - efi/arm: libstub: add a root memreserve config table
    - efi: add API to reserve memory persistently across kexec reboot
    - irqchip/gic-v3-its: Change initialization ordering for LPIs
    - irqchip/gic-v3-its: Simplify LPI_PENDBASE_SZ usage
    - irqchip/gic-v3-its: Split property table clearing from allocation
    - irqchip/gic-v3-its: Move pending table allocation to init time
    - irqchip/gic-v3-its: Keep track of property table's PA and VA
    - irqchip/gic-v3-its: Allow use of pre-programmed LPI tables
    - irqchip/gic-v3-its: Use pre-programmed redistributor tables with kdump
      kernels
    - irqchip/gic-v3-its: Check that all RDs have the same property table
    - irqchip/gic-v3-its: Register LPI tables with EFI config table
    - irqchip/gic-v3-its: Allow use of LPI tables in reserved memory
    - arm64: memblock: don't permit memblock resizing until linear mapping is up
    - efi/arm: Defer persistent reservations until after paging_init()
    - efi: Permit calling efi_mem_reserve_persistent() from atomic context
    - efi: Prevent GICv3 WARN() by mapping the memreserve table before first use

  * ELAN900C:00 04F3:2844 touchscreen doesn't work (LP: #1811335)
    - pinctrl: cannonlake: Fix community ordering for H variant
    - pinctrl: c...