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

[Rob]

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.

[Brad Figg (brad-figg)]

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.

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]