[Bug 1639744] [NEW] lsblk does not use extended WWNs and may return the same ID for two different disks

[Maik Zumstrull]

Public bug reported:

lsblk from util-linux in xenial is affected by this bug:
https://github.com/karelzak/util-linux/issues/321

This means that lsblk may return the same identifier for different
devices, because it always uses the short WWN, while some devices are
only identified uniquely by the full (extended) WWN.

This has been fixed in upstream util-linux for a while, but the version
in xenial is just a tick too old. Since the patch is less than 10 lines,
maybe you would consider a backport?

To my knowledge, this affects mainly "Enterprise" hardware - logical
volumes on fully hardware-driven RAID controllers like HP, Dell,
LSI/Avago, and logical volumes on external storage arrays addressed over
iSCSI or FC.

** Affects: util-linux (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1639744

Title:
  lsblk does not use extended WWNs and may return the same ID for two
  different disks

Status in util-linux package in Ubuntu:
  New

Bug description:
  lsblk from util-linux in xenial is affected by this bug:
  https://github.com/karelzak/util-linux/issues/321

  This means that lsblk may return the same identifier for different
  devices, because it always uses the short WWN, while some devices are
  only identified uniquely by the full (extended) WWN.

  This has been fixed in upstream util-linux for a while, but the
  version in xenial is just a tick too old. Since the patch is less than
  10 lines, maybe you would consider a backport?

  To my knowledge, this affects mainly "Enterprise" hardware - logical
  volumes on fully hardware-driven RAID controllers like HP, Dell,
  LSI/Avago, and logical volumes on external storage arrays addressed
  over iSCSI or FC.

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