[Bug 1673817] Re: update-secure-boot-policy behaving badly with unattended-upgrades

[Steve Langasek]

Hello Jeremy, or anyone else affected,

Accepted shim-signed into trusty-proposed. The package will build now
and be available at https://launchpad.net/ubuntu/+source/shim-
signed/1.32~14.04.1 in a few hours, and then in the -proposed
repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested and change the tag from
verification-needed-trusty to verification-done-trusty. If it does not
fix the bug for you, please add a comment stating that, and change the
tag to verification-failed-trusty. In either case, details of your
testing will help us make a better decision.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance!

** Changed in: shim-signed (Ubuntu Trusty)
       Status: New => Fix Committed

** Tags added: verification-needed verification-needed-trusty

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https://bugs.launchpad.net/bugs/1673817

Title:
  update-secure-boot-policy behaving badly with unattended-upgrades

Status in shim-signed package in Ubuntu:
  Fix Released
Status in unattended-upgrades package in Ubuntu:
  Invalid
Status in shim-signed source package in Trusty:
  Fix Committed
Status in unattended-upgrades source package in Trusty:
  Invalid
Status in shim-signed source package in Xenial:
  Fix Released
Status in unattended-upgrades source package in Xenial:
  Invalid
Status in shim-signed source package in Yakkety:
  Fix Released
Status in unattended-upgrades source package in Yakkety:
  Invalid

Bug description:
  [Impact]
  Any user with unattended upgrades enabled and DKMS packages in a Secure Boot environment might be prompted to change Secure Boot policy, which will fail and crash in unattended-upgrades.

  [Test case]
  = unattended upgrade =
  1) Create /var/lib/dkms/TEST-DKMS
  2) Install new package
  3) Trigger unattended-upgrades: unattended-upgrades -d

  Upgrade should run smoothly for all the processing but fail to
  complete; shim-signed should end the unattended upgrade with a error
  as unattended change of the Secure Boot policy can not be done.
  Upgrade should not hang in high CPU usage.

  = standard upgrade =
  1) Create /var/lib/dkms/TEST-DKMS
  2) install new package.
  3) Verify that the upgrade completes normally. 

  
  [Regression Potential]
  Any failure to prompt for or change Secure Boot policy in mokutil while in an *attended* upgrade scenario would constitute a regression of this SRU.

  Any other issues related to booting in Secure Boot mode should instead
  be directed to bug 1637290 (shim update).

  ---

  Currently, unattended-upgrades will automatically install all updates
  for those running development releases of Ubuntu (LP: #1649709)

  Today, my computer was acting very sluggish. Looking at my process
  list, I saw/ usr/sbin/update-secureboot-policy was using a log of CPU.

  I killed the process. I have a /var/crash/shim-signed.0.crash but
  since it's 750 MB, I didn't bother submitting it or looking at it
  more. Maybe it crashed because I killed the process. Also, I see that
  unattended-upgrades-dpkg.log is 722 MB.

  Today's update included both VirtualBox and the linux kernel.

  I am attaching an excerpt of /var/log/unattended-upgrades/unattended-
  upgrades-dpkg.log

  This message was repeated a very large number of times (but I only
  included it once in the attachment:

  "Invalid password

  The Secure Boot key you've entered is not valid. The password used must be
  between 8 and 16 characters."

  ProblemType: Bug
  DistroRelease: Ubuntu 17.04
  Package: shim-signed 1.23+0.9+1474479173.6c180c6-0ubuntu1
  ProcVersionSignature: Ubuntu 4.10.0-11.13-generic 4.10.1
  Uname: Linux 4.10.0-11-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl zcommon znvpair
  ApportVersion: 2.20.4-0ubuntu2
  Architecture: amd64
  CurrentDesktop: GNOME
  Date: Fri Mar 17 11:15:04 2017
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2017-02-23 (21 days ago)
  InstallationMedia: Ubuntu-GNOME 17.04 "Zesty Zapus" - Alpha amd64 (20170219)
  SourcePackage: shim-signed
  UpgradeStatus: No upgrade log present (probably fresh install)

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