Welcome to the Ubuntu Weekly Newsletter, Issue 720 for the week of January 23 - 29, 2022.

In this Issue

  • [USN-5252-1] PolicyKit vulnerability

  • Proposed deprecation of the Canonical partner archive
  • Xen support in the upcoming 22.04 LTS version
  • Ubuntu Stats
  • Hot in Support
  • LoCo Events

  • Ubucon Europe 2022 - Looking for volunteers!
  • Watch This Space! 22.04 Wallpaper Competition Coming Soon
  • Anbox Cloud 1.12.5 has been released
  • The idea of a tutorial
  • Ubuntu Cloud News
  • Canonical News
  • In the Blogosphere
  • Other Articles of Interest
  • Featured Audio and Video
  • Meeting Reports
  • Upcoming Meetings and Events
  • Updates and Security for 18.04, 20.04, and 21.10
  • And much more!

General Community News

[USN-5252-1] PolicyKit vulnerability

Marc Deslauriers has posted a Ubuntu Security Notice warning of a PolicyKit vulnerability. The notice warns users of Ubuntu 21.10, Ubuntu 20.04 LTS & Ubuntu 18.04 LTS that unpatched systems can allow programs to elevate privileges to administrator without authority, and gives the upgraded packages that will fix the system after install and a reboot. References are provided via link.

Amplifying info:

Proposed deprecation of the Canonical partner archive

Steve Langasek starts by outlining some of what the Canonical partner archive provided in the past, before noting it's not been used since and including Ubuntu groovy (20.10). This post alerts people to this change, and gives the Ubuntu community a chance to speak up before the partner archive is dropped.

Additional attention in the media:

Xen support in the upcoming 22.04 LTS version

Christian Ehrhardt in a reply to a prior post, says he is working on Xen 4.16 for Jammy. A link is provided to a bug report that currently exists, noting a PPA is available for those that would like to "sniff-test" the fixes.

Ubuntu Stats

Bug Stats

  • Open: 138196 (+24)
  • Critical: 332 (+3)
  • Unconfirmed: 69041 (+36)

As always, the Bug Squad needs more help. If you want to get started, please see:


  • Ukrainian: 88.04% (38702/1500)
  • German: 87.02% (42003/123)
  • French: 81.50% (59869/7108)
  • Spanish: 80.87% (61892/4165)
  • Swedish: 77.45% (72949/909)

Hot in Support

Ask Ubuntu Top 5 Questions

Ask (and answer!) questions at:

Ubuntu Forums Top 5 Threads

Find more support at:

LoCo Events

The following LoCo team events are currently scheduled in the next two weeks:

Looking beyond the next two weeks? Visit the LoCo Team Portal to browse upcoming events around the world:

The Hub

Ubucon Europe 2022 - Looking for volunteers!

David Negreira reminds us Ubucon Europe 2019 was a successful event, and writes about the hope for another one being planned for 2022. We are reminded what UbuCon is, and given a link for a 'small introductory session' which will be held on 29 January 2022 at 21:00 GMT for more details, as well as email address if we're unable to attend.

Watch This Space! 22.04 Wallpaper Competition Coming Soon

Monica Ayhens-Madon tells us it's time to "brush off your cameras, digital pads" as it's time for the Jammy Jellyfish Wallpaper Competition. The competition will be run over the month of February, with winners announced no later than 10 March. More details to come, but a link is provided to the Impish Indri Competition for details on competition rules.

Media commentary:

Anbox Cloud 1.12.5 has been released

Ru-fu relates the release is in preparation for the upcoming Ubuntu kernel release on AWS. In support of the 5.13 kernel (20.04 - focal) adaptations must be made to the /proc file system and to the mount system API. Kernel version 5.13 or later must use the 1.12.5 images; else the nested Android container will fail to start. Links to the updated components list, bugs, and upgrade instructions are provided.

The Planet

The idea of a tutorial

Daniele Procida writes that almost all software needs a tutorial, and that is one of the four types of documentation in the In the Diátaxis framework. The difference between tutorials and how-to guides is discussed, and a reminder that Canonical is in the process of 'overhauling' the 'approach to documentation'. The intention is that each product should have only a single tutorial, even if it exists in multiple parts. Other fundamentals to documentation are discussed as well as the disclosure of the investment Canonical is making to maintain this documentation.

Ubuntu Cloud News

Canonical News

In the Blogosphere

Firefox Nightly Begins Activating Wayland For Capable Systems

Michael Larabel tells us Mozilla has "begun activating Wayland support by default on Firefox Nightly" where the machine is capable of it. A link is provided for a 'bug ticket' for known issues, and to check if you're running native Wayland support via "about:support".

Intel's Linux Graphics Driver Patched For New Security Issue But Can Impact Performance

Michael Larabel informs us that whilst Intel's i915 kernel driver has been patched to prevent user-space triggered read/write faults, the fix comes with some "performance implications". We are reminded of what CVE-2022-0330 did and how it worked, and the devices affected. A link is provided to the fixed code on github, along with a note that the fix implemented was for 'simplicity' and may be refined later. We're told the speed implications vary on GPU and by the work loads, with more specific details to come.

Ubuntu On Air: Let's Get the Kernel On Schedule | YannickOnAir

"In the third part of this intro to kernel development, Andrea shows Yannick how to implement a scheduler, from setting up a simple round-robin scheduler to introducing task states and learning how to create/kill tasks."

Ubuntu Portugal Podcast: 179 - Nitrato de Gálio

"Do meio do frio surgem as opiniões mais quentes em 57 minutos repletos de bom nitrato dando força ao Waydroid e bem longe dos perigos do pluton sem esquecer algumas partilhas solitárias…"

Meeting Reports

Upcoming Meetings and Events

  • Ubuntu Membership Board: Thu, February 3, 8pm – 9pm
  • Open Source MANO Community: Thu, February 3, 12pm – 1pm
  • Community Office Hours: Thu, February 3, 6pm – 7pm

Times shown are UTC. For more details and farther dates please visit:

Updates and Security for 18.04, 20.04, and 21.10

Security Updates

Ubuntu 18.04 Updates

End of Standard Support: April 2023

Ubuntu 20.04 Updates

End of Standard Support: April 2025

Ubuntu 21.10 Updates

End of life: July 2022


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UbuntuWeeklyNewsletter/Issue720 (last edited 2022-01-31 20:21:31 by bashing-om)