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xen (4.4.2-0ubuntu0.14.04.14) trusty-security; urgency=medium

  * Applying Xen Security Advisories:
    - CVE-2017-14316 / XSA-231
      - xen/mm: make sure node is less than MAX_NUMNODES
    - CVE-2017-14317 / XSA-233
      - tools/xenstore: dont unlink connection object twice
    - CVE-2017-14319 / XSA-234
      - gnttab: also validate PTE permissions upon destroy/replace
    - XSA-235
      - arm/mm: release grant lock on xenmem_add_to_physmap_one() error paths
    - XSA-237
      - x86: don't allow MSI pIRQ mapping on unowned device
      - x86: enforce proper privilege when (un)mapping pIRQ-s
      - x86/MSI: disallow redundant enabling
      - x86/MSI: fix error handling
      - x86/IRQ: conditionally preserve irq <-> pirq mapping on map error
        paths
      - x86/FLASK: fix unmap-domain-IRQ XSM hook
    - XSA-239
      - x86/HVM: prefill partially used variable on emulation paths
    - XSA-240
      - x86: limit linear page table use to a single level
      - x86/mm: Disable PV linear pagetables by default
    - XSA-241
      - x86: don't store possibly stale TLB flush time stamp
    - XSA-242
      - x86: don't allow page_unlock() to drop the last type reference
    - XSA-243
      - x86: Disable the use of auto-translated PV guestsx86: Disable the use
        of auto-translated PV guests
      - x86/shadow: Don't create self-linear shadow mappings for 4-level
        translated guests
    - XSA-244
      - x86/cpu: Fix IST handling during PCPU bringup

xen (4.4.2-0ubuntu0.14.04.13) trusty-security; urgency=medium

  * Applying Xen Security Advisories:
    - XSA-226 / CVE-2017-12135
      - gnttab: don't use possibly unbounded tail calls
      - gnttab: fix transitive grant handling
    - XSA-227 / CVE-2017-12137
      - x86/grant: Disallow misaligned PTEs
    - XSA-230 / CVE-2017-12855
      - gnttab: correct pin status fixup for copy

 -- Stefan Bader <email address hidden>  Wed, 11 Oct 2017 16:26:04 +0200

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