Xenial update: 4.4.202 upstream stable release

Please note that the following commits from this upstream Linux stable update were dropped in favor of the UBUNTU SAUCE equivalents:

* KVM: Introduce kvm_get_arch_capabilities()
* KVM: x86: Emulate MSR_IA32_ARCH_CAPABILITIES on AMD hosts
* kvm: x86: IA32_ARCH_CAPABILITIES is always supported
* KVM: x86: use Intel speculation bugs and features as derived in generic x86 code
* x86/msr: Add the IA32_TSX_CTRL MSR
* x86/cpu: Add a helper function x86_read_arch_cap_msr()
* x86/cpu: Add a "tsx=" cmdline option with TSX disabled by default
* x86/speculation/taa: Add mitigation for TSX Async Abort
* x86/speculation/taa: Add sysfs reporting for TSX Async Abort
* kvm/x86: Export MDS_NO=0 to guests when TSX is enabled
* x86/tsx: Add "auto" option to the tsx= cmdline parameter
* x86/speculation/taa: Add documentation for TSX Async Abort
* x86/tsx: Add config options to set tsx=on|off|auto
* x86/bugs: Add ITLB_MULTIHIT bug infrastructure

This bug was fixed in the package linux - 4.4.0-171.200

---------------
linux (4.4.0-171.200) xenial; urgency=medium

  * xenial/linux: 4.4.0-171.200 -proposed tracker (LP: #1854835)

  * CVE-2019-14901
    - SAUCE: mwifiex: Fix heap overflow in mmwifiex_process_tdls_action_frame()

  * CVE-2019-14896 // CVE-2019-14897
    - SAUCE: libertas: Fix two buffer overflows at parsing bss descriptor

  * CVE-2019-14895
    - SAUCE: mwifiex: fix possible heap overflow in mwifiex_process_country_ie()

  * CVE-2019-18660: patches for Ubuntu (LP: #1853142) // CVE-2019-18660
    - powerpc/64s: support nospectre_v2 cmdline option
    - powerpc/book3s64: Fix link stack flush on context switch
    - KVM: PPC: Book3S HV: Flush link stack on guest exit to host kernel

  * cloudimg: no iavf/i40evf module so no network available with SR-IOV enabled
    cloud (LP: #1848481)
    - [Packaging]: include i40evf in generic

  * update ENA driver for DIMLIB dynamic interrupt moderation (LP: #1853180)
    - net: ena: fix bug that might cause hang after consecutive open/close
      interface.
    - net: ena: add intr_moder_rx_interval to struct ena_com_dev and use it
    - net: ena: switch to dim algorithm for rx adaptive interrupt moderation
    - net: ena: reimplement set/get_coalesce()
    - net: ena: enable the interrupt_moderation in driver_supported_features
    - net: ena: remove code duplication in
      ena_com_update_nonadaptive_moderation_interval _*()
    - net: ena: remove old adaptive interrupt moderation code from ena_netdev
    - net: ena: remove ena_restore_ethtool_params() and relevant fields
    - net: ena: remove all old adaptive rx interrupt moderation code from ena_com
    - net: ena: fix update of interrupt moderation register
    - net: ena: fix retrieval of nonadaptive interrupt moderation intervals
    - net: ena: fix incorrect update of intr_delay_resolution
    - net: ena: Select DIMLIB for ENA_ETHERNET
    - SAUCE: net: ena: fix issues in setting interrupt moderation params in
      ethtool
    - SAUCE: net: ena: fix too long default tx interrupt moderation interval

  * backport DIMLIB (lib/dim/) to pre-5.2 kernels (LP: #1852637)
    - include/linux/bitops.h: introduce BITS_PER_TYPE
    - linux/kernel.h: move DIV_ROUND_DOWN_ULL() macro
    - [Config] enable DIMLIB
    - linux/dim: import DIMLIB (lib/dim/)
    - SAUCE: linux/dim: avoid library object filename clash

  * Enable framebuffer fonts auto selection for HighDPI screen (LP: #1851623)
    - fonts: Fix coding style
    - fonts: Prefer a bigger font for high resolution screens

  * Xenial update: 4.4.203 upstream stable release (LP: #1853881)
    - slip: Fix memory leak in slip_open error path
    - ax88172a: fix information leak on short answers
    - ALSA: usb-audio: Fix missing error check at mixer resolution test
    - ALSA: usb-audio: not submit urb for stopped endpoint
    - Input: ff-memless - kill timer in destroy()
    - ecryptfs_lookup_interpose(): lower_dentry->d_inode is not stable
    - ecryptfs_lookup_interpose(): lower_dentry->d_parent is not stable either
    - iommu/vt-d: Fix QI_DEV_IOTLB_PFSID and QI_DEV_EIOTLB_PFSID macros
    - mm: memcg: switch to css_tryget() in g...