[ubuntu/zesty-security] xen 4.8.0-1ubuntu2.4 (Accepted)

[Marc Deslauriers]

xen (4.8.0-1ubuntu2.4) zesty-security; urgency=medium

  * Applying Xen Security Advisories:
    - CVE-2017-14316 / XSA-231
      - xen/mm: make sure node is less than MAX_NUMNODES
    - CVE-2017-14318 / XSA-232
      - grant_table: fix GNTTABOP_cache_flush handling
    - 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/IRQ: conditionally preserve irq <-> pirq mapping on map error
        paths
      - x86/FLASK: fix unmap-domain-IRQ XSM hook
    - XSA-238
      - x86/ioreq server: correctly handle bogus
        XEN_DMOP_{,un}map_io_range_to_ioreq_server arguments
    - 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/shadow: Don't create self-linear shadow mappings for 4-level
        translated guests
    - XSA-244
      - x86/cpu: Fix IST handling during PCPU bringup
    - XSA-245
      - xen/page_alloc: Cover memory unreserved after boot in first_valid_mfn
      - xen/arm: Correctly report the memory region in the dummy NUMA helpers

xen (4.8.0-1ubuntu2.3) zesty-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-228 / CVE-2017-12136
      - gnttab: split maptrack lock to make it fulfill its purpose again
    - XSA-230 / CVE-2017-12855
      - gnttab: correct pin status fixup for copy

Date: 2017-10-13 15:06:18.247472+00:00
Changed-By: Stefan Bader <stefan.bader at canonical.com>
Signed-By: Marc Deslauriers <marc.deslauriers at canonical.com>
https://launchpad.net/ubuntu/+source/xen/4.8.0-1ubuntu2.4
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