This bug was fixed in the package linux-oem-5.14 - 5.14.0-1022.24

---------------
linux-oem-5.14 (5.14.0-1022.24) focal; urgency=medium

  * focal/linux-oem-5.14: 5.14.0-1022.24 -proposed tracker (LP:
#1959585)

  * Got black screen when resume from s2idle with AMD dGPU (LP: #1955790)
    - drm/amdgpu: don't do resets on APUs which don't support it

  * CVE-2022-0330
    - drm/i915: Flush TLBs before releasing backing store

  * CVE-2022-22942
    - SAUCE: drm/vmwgfx: Fix stale file descriptors on failed usercopy

  * CVE-2022-23222
    - bpf: Don't promote bogus looking registers after null check.
    - bpf, selftests: Add verifier test for mem_or_null register with offset.

  * CVE-2022-24122
    - ucount: Make get_ucount a safe get_user replacement

  * The display output on type-c hub doesn't work on ADL platform (LP: #1959061)
    - SAUCE: drm/i915/adlp: Fix TypeC PHY-ready status readout

 -- Timo Aaltonen <timo.aalto...@canonical.com>  Mon, 31 Jan 2022
17:45:20 +0200

** Changed in: linux-oem-5.14 (Ubuntu Focal)
       Status: Fix Committed => Fix Released

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2022-0330

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2022-22942

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2022-23222

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2022-24122

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https://bugs.launchpad.net/bugs/1938531

Title:
  support signed v4l2loopback dkms build

Status in OEM Priority Project:
  In Progress
Status in linux package in Ubuntu:
  Fix Released
Status in linux-oem-5.10 package in Ubuntu:
  Invalid
Status in linux-oem-5.13 package in Ubuntu:
  Invalid
Status in linux-oem-5.14 package in Ubuntu:
  Invalid
Status in linux source package in Focal:
  Invalid
Status in linux-oem-5.10 source package in Focal:
  Fix Committed
Status in linux-oem-5.13 source package in Focal:
  Fix Released
Status in linux-oem-5.14 source package in Focal:
  Fix Released

Bug description:
  [SRU Justification]

  [Impact]

  v4l2loopback is used as a critical role on Intel IPU6 camera platforms,
  which takes userspace middleware involvements to correctly configure
  hardware sensors. While all the legacy camera applications are not yet
  learned how to support libcamera, v4l2loopback and a v4l2-relayd step in
  as a video streaming proxy for backward compatibility.

  To preinstall v4l2loopback kernel module on secureboot systems, signed
  modules should be used.

  [Fix]

  All Ubuntu specific changes to enable signed v4l2loopback dkms builds.

  [Test Case]

  Install signed modules package and check `modinfo v4l2loopback`.

  [Where problems could occur]

  N/A.

  [Other Info]

  This adds current revision of v4l2loopback in the ubuntu archive. While
  some other fixes are also needed for v4l2loopback/focal, expects version
  bumps recently.

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