Public bug reported:
Description: boot: Add secure boot trailer
Symptom: Secure boot of Linux will no longer be possible with an upcoming
IBM Z firmware update.
Problem: New IBM Z firmware requires signed bootable images to contain a
trailing data block with a specific format.
Solution: Add the trailing data block to the Linux kernel image.
Reproduction: Apply latest firmware, perform IPL with Secure Boot
enabled.
Fix: available upstream with
Upstream-ID: aa127a069ef312aca02b730d5137e1778d0c3ba7
Preventive: yes
Date: 2022-10-27
Author: Peter Oberparleiter <[email protected]>
Component: kernel
** Affects: linux (Ubuntu)
Importance: Undecided
Assignee: Skipper Bug Screeners (skipper-screen-team)
Status: New
** Tags: architecture-s39064 bugnameltc-200452 severity-critical
targetmilestone-inin---
** Tags added: architecture-s39064 bugnameltc-200452 severity-critical
targetmilestone-inin---
** Changed in: ubuntu
Assignee: (unassigned) => Skipper Bug Screeners (skipper-screen-team)
** Package changed: ubuntu => linux (Ubuntu)
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https://bugs.launchpad.net/bugs/1996071
Title:
[UBUNTU 20.04] boot: Add secure boot trailer
Status in linux package in Ubuntu:
New
Bug description:
Description: boot: Add secure boot trailer
Symptom: Secure boot of Linux will no longer be possible with an
upcoming
IBM Z firmware update.
Problem: New IBM Z firmware requires signed bootable images to contain a
trailing data block with a specific format.
Solution: Add the trailing data block to the Linux kernel image.
Reproduction: Apply latest firmware, perform IPL with Secure Boot
enabled.
Fix: available upstream with
Upstream-ID: aa127a069ef312aca02b730d5137e1778d0c3ba7
Preventive: yes
Date: 2022-10-27
Author: Peter Oberparleiter <[email protected]>
Component: kernel
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