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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:

apport-collect 1403999

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

** Tags added: utopic

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https://bugs.launchpad.net/bugs/1403999

Title:
  libcrc32c: module verification failed: signature and/or  required key
  missing - tainting kernel

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Hello, I updated Ubuntu yesterday w/ the following packages:

  Start-Date: 2014-12-17  16:46:20
  Commandline: aptdaemon role='role-commit-packages' sender=':1.406'
  Upgrade: linux-headers-3.16.0-28:amd64 (3.16.0-28.37, 3.16.0-28.38), linux-tools-common:amd64 (3.16.0-28.37, 3.16.0-28.38), linux-image-3.16.0-28-generic:amd64 (3.16.0-28.37, 3.16.0-28.38), linux-tools-3.16.0-28-generic:amd64 (3.16.0-28.37, 3.16.0-28.38), language-pack-gnome-en:amd64 (14.10+20141020, 14.10+20141205), linux-headers-3.16.0-28-generic:amd64 (3.16.0-28.37, 3.16.0-28.38), linux-tools-3.16.0-28:amd64 (3.16.0-28.37, 3.16.0-28.38), linux-image-extra-3.16.0-28-generic:amd64 (3.16.0-28.37, 3.16.0-28.38), linux-signed-image-3.16.0-28-generic:amd64 (3.16.0-28.37, 3.16.0-28.38), language-pack-gnome-en-base:amd64 (14.10+20141020, 14.10+20141205), linux-libc-dev:amd64 (3.16.0-28.37, 3.16.0-28.38)
  End-Date: 2014-12-17  16:47:03

  After the update, I noticed the following lines in dmesg:

  [450533.640533] Request for unknown module key 'Magrathea: Glacier signing key: af30e7f37b41301c96f985f4789da5f4373e9e92' err -11
  [450533.640575] libcrc32c: module verification failed: signature and/or  required key missing - tainting kernel

  
  Should I be worried? I didn't reboot yet but I have secure boot disabled so I don't think that I would have any issue bug I'm wondering why I got hat msg.

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