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[Launchpad Bug Tracker <1473447@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package linux - 4.1.0-1.1

---------------
linux (4.1.0-1.1) wily; urgency=low

  [ Andy Whitcroft ]

  * SAUCE: overlay: add backwards compatible overlayfs format support V3
    - LP: #1395877, #1410480
  * SAUCE: overlayfs: when copying up and reading directories ensure
    mounter had permissions V2
    - CVE-2015-1328
  * [Packaging] fix up Vcs-Git: to point to launchpad
  * [Config] correct linux-initramfs-tool virtual linkage
    - LP: #1474810

  [ Chris J Arges ]

  * [Config] Add dm-service-time to multipath-modules
    - LP: #1469240
  * [Config] Add MTD_POWERNV_FLASH and OPAL_PRD
    - LP: #1464560

  [ Jay Vosburgh ]

  * SAUCE: fan: Proof of concept implementation (v2)
    - LP: #1439706
  * SAUCE: fan: tunnel multiple mapping mode (v3)
    - LP: #1470091

  [ Leann Ogasawara ]

  * Revert "SAUCE: ext4: disable ext4_punch_hole for indirect filesystems"
  * Revert "SAUCE: intel_pstate: inform user that thermald is worth
    considering"
  * Revert "SAUCE: Work around broken ACPI backlight on Dell Inspiron 5537"
  * Revert "SAUCE: dm-crypt: never use write same"
  * Release Tracking Bug
    - LP: #1476333

  [ Tim Gardner ]

  * Rebase to v4.1
    - LP: #1443371
  * [Config] Enable Apparmor
  * [Config] CONFIG_OVERLAY_FS_V1=y
  * [Config] DEFAULT_IOSCHED="deadline" for ppc64el
    - LP: #1469829
  * [Config] CONFIG_VM86=n
    - LP: #1473447
  * [Config] ACORN_PARTITION=n
    - LP: #1453117

  [ Timo Aaltonen ]

  * [Config] Disable CONFIG_DRM_I915_PRELIMINARY_HW_SUPPORT
    - LP: #1473319

  [ Upstream Kernel Changes ]

  * efi: efivar_create_sysfs_entry() should return negative error codes
  * efi: Add esrt support
  * x86, doc: Remove cmdline_size from list of fields to be filled in for
    EFI handover
  * efi/esrt: Fix some compiler warnings
  * efi: dmi: List SMBIOS3 table before SMBIOS table
  * efi: Add 'systab' information to Documentation/ABI
  * ALSA: hda - restore the MIC FIXUP for some Dell machines
    - LP: #1473560
  * mtd: powernv: Add powernv flash MTD abstraction driver
    - LP: #1464560
  * powerpc/powernv: Expose OPAL APIs required by PRD interface
    - LP: #1464560
  * powerpc/powernv: Add opal-prd channel
    - LP: #1464560
  * powerpc/powernv: fix construction of opal PRD messages
    - LP: #1464560
  * powerpc/include: Add opal-prd to installed uapi headers
    - LP: #1464560
  * powerpc/powernv: Fix vma page prot flags in opal-prd driver
    - LP: #1464560

 -- Leann Ogasawara <leann.ogasawara@xxxxxxxxxxxxx>  Mon, 20 Jul 2015
10:16:06 -0700

** Changed in: linux (Ubuntu)
       Status: Triaged => Fix Released

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2015-1328

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https://bugs.launchpad.net/bugs/1473447

Title:
  linux: VM86 should be disabled

Status in linux package in Ubuntu:
  Fix Released

Bug description:
  Upstream is concerned about possible security vulnerabilities in VM86:
  http://thread.gmane.org/gmane.linux.kernel/1991020

  There are possible side effects to disabling VM86, e.g.,
  (http://codesearch.debian.net/results/sys%2Fvm86.h) and
  (http://codesearch.debian.net/results/asm%2Fvm86.h). Applications
  including asm/vm86.h directly may not have an emulation fallback mode
  and may therefore fail to run or build.

  VM86 is also a dependency for some older 32 bit X drivers.

  It seems the choice is to regress or orphan some 32 bit functionality,
  or leave all 32 bit platform open to possible VM86 vulnerabilities.

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