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[Launchpad Bug Tracker <1580754@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package linux - 4.4.0-24.43

---------------
linux (4.4.0-24.43) xenial; urgency=low

  [ Kamal Mostafa ]

  * CVE-2016-1583 (LP: #1588871)
    - ecryptfs: fix handling of directory opening
    - SAUCE: proc: prevent stacking filesystems on top
    - SAUCE: ecryptfs: forbid opening files without mmap handler
    - SAUCE: sched: panic on corrupted stack end

  * arm64: statically link rtc-efi (LP: #1583738)
    - [Config] Link rtc-efi statically on arm64

 -- Kamal Mostafa <kamal@xxxxxxxxxxxxx>  Fri, 03 Jun 2016 10:02:16 -0700

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

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2016-1583

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https://bugs.launchpad.net/bugs/1580754

Title:
  Xenial update to v4.4.10 stable release

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Released

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 v4.4.10 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 v4.4.10 stable release shall be
  applied:

  Revert "UBUNTU: SAUCE: (no-up) ACPICA: Dispatcher: Update thread ID for recursive method calls"
  Revert "UBUNTU: SAUCE: nbd: ratelimit error msgs after socket close"
  Revert: "powerpc/tm: Check for already reclaimed tasks"
  RDMA/iw_cxgb4: Fix bar2 virt addr calculation for T4 chips
  ipvs: handle ip_vs_fill_iph_skb_off failure
  ipvs: correct initial offset of Call-ID header search in SIP persistence engine
  ipvs: drop first packet to redirect conntrack
  mfd: intel-lpss: Remove clock tree on error path
  nbd: ratelimit error msgs after socket close
  ata: ahci_xgene: dereferencing uninitialized pointer in probe
  mwifiex: fix corner case association failure
  CNS3xxx: Fix PCI cns3xxx_write_config()
  clk-divider: make sure read-only dividers do not write to their register
  soc: rockchip: power-domain: fix err handle while probing
  clk: rockchip: free memory in error cases when registering clock branches
  clk: meson: Fix meson_clk_register_clks() signature type mismatch
  clk: qcom: msm8960: fix ce3_core clk enable register
  clk: versatile: sp810: support reentrance
  clk: qcom: msm8960: Fix ce3_src register offset
  lpfc: fix misleading indentation
  ath9k: ar5008_hw_cmn_spur_mitigate: add missing mask_m & mask_p initialisation
  mac80211: fix statistics leak if dev_alloc_name() fails
  tracing: Don't display trigger file for events that can't be enabled
  MD: make bio mergeable
  Minimal fix-up of bad hashing behavior of hash_64()
  mm, cma: prevent nr_isolated_* counters from going negative
  mm/zswap: provide unique zpool name
  ARM: EXYNOS: Properly skip unitialized parent clock in power domain on
  ARM: SoCFPGA: Fix secondary CPU startup in thumb2 kernel
  xen: Fix page <-> pfn conversion on 32 bit systems
  xen/balloon: Fix crash when ballooning on x86 32 bit PAE
  xen/evtchn: fix ring resize when binding new events
  HID: wacom: Add support for DTK-1651
  HID: Fix boot delay for Creative SB Omni Surround 5.1 with quirk
  Input: zforce_ts - fix dual touch recognition
  proc: prevent accessing /proc/<PID>/environ until it's ready
  mm: update min_free_kbytes from khugepaged after core initialization
  batman-adv: fix DAT candidate selection (must use vid)
  batman-adv: Check skb size before using encapsulated ETH+VLAN header
  batman-adv: Fix broadcast/ogm queue limit on a removed interface
  batman-adv: Reduce refcnt of removed router when updating route
  writeback: Fix performance regression in wb_over_bg_thresh()
  MAINTAINERS: Remove asterisk from EFI directory names
  x86/tsc: Read all ratio bits from MSR_PLATFORM_INFO
  ARM: cpuidle: Pass on arm_cpuidle_suspend()'s return value
  ARC: Add missing io barriers to io{read,write}{16,32}be()
  x86/sysfb_efi: Fix valid BAR address range check
  ACPICA: Dispatcher: Update thread ID for recursive method calls
  powerpc: Fix bad inline asm constraint in create_zero_mask()
  libahci: save port map for forced port map
  ata: ahci-platform: Add ports-implemented DT bindings.
  USB: serial: cp210x: add ID for Link ECU
  USB: serial: cp210x: add Straizona Focusers device ids
  nvmem: mxs-ocotp: fix buffer overflow in read
  gpu: ipu-v3: Fix imx-ipuv3-crtc module autoloading
  drm/amdgpu: make sure vertical front porch is at least 1
  drm/amdgpu: set metadata pointer to NULL after freeing.
  iio: ak8975: Fix NULL pointer exception on early interrupt
  iio: ak8975: fix maybe-uninitialized warning
  drm/radeon: make sure vertical front porch is at least 1
  drm/i915/ddi: Fix eDP VDD handling during booting and suspend/resume
  drm/i915: Fix eDP low vswing for Broadwell
  drm/i915: Make RPS EI/thresholds multiple of 25 on SNB-BDW
  drm/i915: Fake HDMI live status
  lib/test-string_helpers.c: fix and improve string_get_size() tests
  drm/i915/skl: Fix DMC load on Skylake J0 and K0
  Linux 4.4.10

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