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[Launchpad Bug Tracker <1663687@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package linux - 4.10.0-8.10

---------------
linux (4.10.0-8.10) zesty; urgency=low

  [ Tim Gardner ]

  * Release Tracking Bug
    - LP: #1664217

  * [Hyper-V] Bug fixes for storvsc (tagged queuing, error conditions)
    (LP: #1663687)
    - scsi: storvsc: Enable tracking of queue depth
    - scsi: storvsc: Remove the restriction on max segment size
    - scsi: storvsc: Enable multi-queue support
    - scsi: storvsc: use tagged SRB requests if supported by the device
    - scsi: storvsc: properly handle SRB_ERROR when sense message is present
    - scsi: storvsc: properly set residual data length on errors

  * Ubuntu16.10-KVM:Big configuration with multiple guests running SRIOV VFs
    caused KVM host hung and all KVM guests down. (LP: #1651248)
    - KVM: PPC: Book 3S: XICS cleanup: remove XICS_RM_REJECT
    - KVM: PPC: Book 3S: XICS: correct the real mode ICP rejecting counter
    - KVM: PPC: Book 3S: XICS: Fix potential issue with duplicate IRQ resends
    - KVM: PPC: Book 3S: XICS: Implement ICS P/Q states
    - KVM: PPC: Book 3S: XICS: Don't lock twice when checking for resend

  * overlay: mkdir fails if directory exists in lowerdir in a user namespace
    (LP: #1531747)
    - SAUCE: overlayfs: Skip permission checking for trusted.overlayfs.* xattrs

  * CVE-2016-1575 (LP: #1534961)
    - SAUCE: overlayfs: Skip permission checking for trusted.overlayfs.* xattrs

  * CVE-2016-1576 (LP: #1535150)
    - SAUCE: overlayfs: Skip permission checking for trusted.overlayfs.* xattrs

  * Miscellaneous Ubuntu changes
    - SAUCE: md/raid6 algorithms: scale test duration for speedier boots
    - SAUCE: Import aufs driver
    - d-i: Build message-modules udeb for arm64
    - rebase to v4.10-rc8

  * Miscellaneous upstream changes
    - Revert "UBUNTU: SAUCE: aufs -- remove .readlink assignment"
    - Revert "UBUNTU: SAUCE: (no-up) aufs: for v4.9-rc1, support setattr_prepare()"
    - Revert "UBUNTU: SAUCE: aufs -- Add flags argument to aufs_rename()"
    - Revert "UBUNTU: SAUCE: aufs -- Convert to use xattr handlers"
    - Revert "UBUNTU: SAUCE: Import aufs driver"

  [ Upstream Kernel Changes ]

  * rebase to v4.10-rc8

 -- Tim Gardner <tim.gardner@xxxxxxxxxxxxx>  Mon, 06 Feb 2017 08:34:24
-0700

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

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2016-1575

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2016-1576

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https://bugs.launchpad.net/bugs/1663687

Title:
  [Hyper-V] Bug fixes for storvsc (tagged queuing, error conditions)

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Committed
Status in linux source package in Yakkety:
  Fix Committed
Status in linux source package in Zesty:
  Fix Released

Bug description:
  Patchset:

  1/6 Enable tracking of queue depth.

  2/6 Remove the artificially imposed restriction on max segment size.

  3/6 Enable multi-q support. We will allocate the outgoing channel using
  the following policy:

          1. We will make every effort to pick a channel that is in the
             same NUMA node that is initiating the I/O
          2. The mapping between the guest CPU and the outgoing channel
             is persistent.

  4/6 Properly set SRB flags when hosting device supports tagged queuing.
  This patch improves the performance on Fiber Channel disks.

  5/6 When sense message is present on error, we should pass along to the upper
  layer to decide how to deal with the error.
  This patch fixes connectivity issues with Fiber Channel devices.

  6/6 On I/O errors, the Windows driver doesn't set data_transfer_length
  on error conditions other than SRB_STATUS_DATA_OVERRUN.
  In these cases we need to set data_transfer_length to 0,
  indicating there is no data transferred. On SRB_STATUS_DATA_OVERRUN,
  data_transfer_length is set by the Windows driver to the actual data transferred.

  The new feature (multi-q) in this patchset require boot line
  parameters to enable so they are safe to integrate.

  K. Y. Srinivasan (3):
    storvsc: Enable tracking of queue depth
    storvsc: Remove the restriction on max segment size
    storvsc: Enable multi-queue support

  Long Li (3):
    storvsc: use tagged SRB requests if supported by the device
    storvsc: properly handle SRB_ERROR when sense message is present
    storvsc: properly set residual data length on errors

  https://git.kernel.org/cgit/linux/kernel/git/next/linux-
  next.git/commit/?id=40630f462824ee24bc00d692865c86c3828094e0

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