the fix is not in 5.17.0-1004-oem yet.

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https://bugs.launchpad.net/bugs/1969432

Title:
  5.17 kernel won't load mok, so it refused to load dkms signed by mok

Status in OEM Priority Project:
  Confirmed
Status in linux package in Ubuntu:
  Incomplete
Status in linux-oem-5.17 package in Ubuntu:
  New

Bug description:
  Steps to reproduce:

  1. enroll mok, and use the mok to sign dkms
  2. make sure secure boot is on, and boots with kernel
  3. load the kernel by either modprobe or insmod.

  Expected:
  the kernel module can be loaded.

  Actually:
  the kernel module can't be loaded.

  Failed kernel: 5.17.0-1003-oem
  Passed kernel: 5.15.0-25-generic

  With 5.17 kernel, using command "dmesg | grep 509", I can't see the mok key.
  With 5.15 kernel above, I can see the mok key is loaded like:

  [    0.896168] integrity: Loading X.509 certificate: UEFI:MokListRT (MOKvar 
table)
  [    0.896283] integrity: Loaded X.509 cert 'ubuntu Secure Boot Module 
Signature key: 670bc7d76f65d9cfc786f5501de6af89bf3973e7'

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