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[Stefan Bader <stefan.bader@xxxxxxxxxxxxx>]

** Also affects: linux (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Changed in: linux (Ubuntu)
       Status: New => Invalid

** Changed in: linux (Ubuntu Xenial)
   Importance: Undecided => Medium

** Changed in: linux (Ubuntu Xenial)
       Status: New => Fix Committed

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https://bugs.launchpad.net/bugs/1745071

Title:
  Xenial update to 4.4.110 stable release

Status in linux package in Ubuntu:
  Invalid
Status in linux source package in Xenial:
  Fix Committed

Bug description:
  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 4.4.110 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 4.4.110 stable release shall be applied:
  * x86/boot: Add early cmdline parsing for options with arguments
  * KAISER: Kernel Address Isolation
  * kaiser: merged update
  * kaiser: do not set _PAGE_NX on pgd_none
  * kaiser: stack map PAGE_SIZE at THREAD_SIZE-PAGE_SIZE
  * kaiser: fix build and FIXME in alloc_ldt_struct()
  * kaiser: KAISER depends on SMP
  * kaiser: fix regs to do_nmi() ifndef CONFIG_KAISER
  * kaiser: fix perf crashes
  * kaiser: ENOMEM if kaiser_pagetable_walk() NULL
  * kaiser: tidied up asm/kaiser.h somewhat
  * kaiser: tidied up kaiser_add/remove_mapping slightly
  * kaiser: kaiser_remove_mapping() move along the pgd
  * kaiser: cleanups while trying for gold link
  * kaiser: name that 0x1000 KAISER_SHADOW_PGD_OFFSET
  * kaiser: delete KAISER_REAL_SWITCH option
  * kaiser: vmstat show NR_KAISERTABLE as nr_overhead
  * kaiser: enhanced by kernel and user PCIDs
  * kaiser: load_new_mm_cr3() let SWITCH_USER_CR3 flush user
  * kaiser: PCID 0 for kernel and 128 for user
  * kaiser: x86_cr3_pcid_noflush and x86_cr3_pcid_user
  * kaiser: paranoid_entry pass cr3 need to paranoid_exit
  * kaiser: _pgd_alloc() without __GFP_REPEAT to avoid stalls
  * kaiser: fix unlikely error in alloc_ldt_struct()
  * kaiser: add "nokaiser" boot option, using ALTERNATIVE
  * x86/kaiser: Rename and simplify X86_FEATURE_KAISER handling
  * x86/kaiser: Check boottime cmdline params
  * kaiser: use ALTERNATIVE instead of x86_cr3_pcid_noflush
  * kaiser: drop is_atomic arg to kaiser_pagetable_walk()
  * kaiser: asm/tlbflush.h handle noPGE at lower level
  * kaiser: kaiser_flush_tlb_on_return_to_user() check PCID
  * x86/paravirt: Dont patch flush_tlb_single
  * x86/kaiser: Reenable PARAVIRT
  * kaiser: disabled on Xen PV
  * x86/kaiser: Move feature detection up
  * KPTI: Rename to PAGE_TABLE_ISOLATION
  * KPTI: Report when enabled
  * x86, vdso, pvclock: Simplify and speed up the vdso pvclock reader
  * x86/vdso: Get pvclock data from the vvar VMA instead of the fixmap
  * x86/kasan: Clear kasan_zero_page after TLB flush
  * kaiser: Set _PAGE_NX only if supported
  * Linux 4.4.110

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