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[Bug 1566221] Re: linux: Enforce signed module loading when UEFI secure boot

 

For completeness the userspace changes needed for this are being tracked
under Bug #1574727.

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https://bugs.launchpad.net/bugs/1566221

Title:
  linux: Enforce signed module loading when UEFI secure boot

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Trusty:
  In Progress
Status in linux source package in Vivid:
  In Progress
Status in linux source package in Wily:
  In Progress
Status in linux source package in Xenial:
  Fix Released
Status in linux source package in Yakkety:
  Fix Released

Bug description:
  This work is authorized by an approved UOS spec and blueprint at
  https://wiki.ubuntu.com/Spec/InstallingUnsignedSecureBoot

  Add code to implement secure boot checks. Unsigned or incorrectly
  signed modules will continue to install while tainting the kernel
  _until_ EFI_SECURE_BOOT_SIG_ENFORCE is enabled.

  When EFI_SECURE_BOOT_SIG_ENFORCE is enabled, then the only recourse
  for platforms booting in secure boot mode with a DKMS dependency is to
  disable secure boot using mokutil:

  sudo mokutil --disable-validation
  sudo reboot

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References