This bug was fixed in the package linux - 3.13.0-96.143

---------------
linux (3.13.0-96.143) trusty; urgency=low

  [ Tim Gardner ]

  * Release Tracking Bug
    - LP: #1618083

  * CVE-2015-8767
    - sctp: Prevent soft lockup when sctp_accept() is called during a timeout
      event

  * MacBookPro11,4 fails to poweroff or suspend (LP: #1587714)
    - SAUCE: PCI: Workaround to enable poweroff on Mac Pro 11

  * 3.13: libvirtd: page allocation failure: order:4, mode:0x1040d0
    (LP: #1616193)
    - vhost-net: extend device allocation to vmalloc
    - vhost-net: don't open-code kvfree

  * [arm64] nova instances can't boot with 3.13.0-92 (LP: #1608854)
    - Revert "UBUNTU: [Config] CONFIG_EFI=n for arm64"
    - Revert "UBUNTU: SAUCE: UEFI: Set EFI_SECURE_BOOT bit in x86_efi_facility"
    - Revert "UBUNTU: SAUCE: UEFI: Add secure boot and MOK SB State disabled
      sysctl"
    - Revert "UBUNTU: SAUCE: UEFI: Display MOKSBState when disabled"
    - Revert "UBUNTU: SAUCE: UEFI: efi: Disable secure boot if shim is in 
insecure
      mode"
    - Revert "UBUNTU: SAUCE: UEFI MODSIGN: Import certificates from UEFI Secure
      Boot"
    - Revert "UBUNTU: SAUCE: UEFI: efi: Make EFI_SECURE_BOOT_SIG_ENFORCE depend 
on
      EFI"
    - Revert "UBUNTU: SAUCE: UEFI: Add option to automatically enforce module
      signatures when in Secure Boot mode"
    - Revert "UBUNTU: [Config] CONFIG_EFI_SECURE_BOOT_SIG_ENFORCE=y"
    - Revert "UBUNTU: SAUCE: UEFI: x86: Restrict MSR access when module loading 
is
      restricted"
    - Revert "UBUNTU: SAUCE: UEFI: kexec: Disable at runtime if the kernel
      enforces module loading restrictions"
    - Revert "UBUNTU: SAUCE: UEFI: acpi: Ignore acpi_rsdp kernel parameter when
      module loading is restricted"
    - Revert "UBUNTU: SAUCE: UEFI: Restrict /dev/mem and /dev/kmem when module
      loading is restricted"
    - Revert "UBUNTU: SAUCE: UEFI: asus-wmi: Restrict debugfs interface when
      module loading is restricted"
    - Revert "UBUNTU: SAUCE: UEFI: ACPI: Limit access to custom_method"
    - Revert "UBUNTU: SAUCE: UEFI: x86: Lock down IO port access when module
      security is enabled"
    - Revert "UBUNTU: SAUCE: UEFI: PCI: Lock down BAR access when module 
security
      is enabled"
    - Revert "UBUNTU: SAUCE: UEFI: Add secure_modules() call"
    - Revert "x86/efi: Build our own EFI services pointer table"
    - Revert "efi: Add separate 32-bit/64-bit definitions"

  * [Hyper-V] storvsc messages for CD-ROM medium not present tray closed
    (LP: #1590655)
    - scsi: storvsc: Filter out storvsc messages CD-ROM medium not present

  * CVE-2016-3841
    - ipv6: add complete rcu protection around np->opt

 -- Kamal Mostafa <ka...@canonical.com>  Tue, 16 Aug 2016 10:20:51 -0700

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

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2015-8767

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2016-3841

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https://bugs.launchpad.net/bugs/1590655

Title:
  [Hyper-V] storvsc messages for CD-ROM medium not present tray closed

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Trusty:
  Fix Released
Status in linux source package in Vivid:
  Won't Fix
Status in linux source package in Wily:
  Won't Fix
Status in linux source package in Xenial:
  Fix Released
Status in linux source package in Yakkety:
  Fix Released

Bug description:
  The below can be seen with any distribution running on a Generation 2
  VM.

  There is a verified patch for this, however it has been scheduled only for 
the 4.8 scsi-queue.
  As it a small patch which has been verified by KY and also accepted in the 
patch queue, will you be able to include this as part of the 16.04 rebase to 
4.6, and as well for 14.04 and 15.10?

  Patch can be found at https://patchwork.kernel.org/patch/9131929/

  Description of problem:
  When starting and shutting down a Gen2 VM, at least 20-30 messages are 
recorded for storvsc with the below sample:
  [storvsc] Sense Key : Not Ready [current]
  [storvsc] Add. Sense: Medium not present - tray closed

  Steps to Reproduce:
  1. create a Generation2 VM
  2. start VM and observe the system logs
  3. multiple messages for the cd-rom are recorded from storvsc

  Actual results:
  even without a CD-ROM unit attached, the messages would appear.
  Having an ISO attached or not would still produce the same messages.

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