[Bug 2011804] Re: [SRU] [HWE] gnu-efi 3.0.15

[Julian Andres Klode]

The additional test rebuilds completed sucessfully as well, except for
kexec-tools on riscv64, which is not a regression, so marking as
verified.

If you want to double check in the PPA, I want to note I did cancel the
riscv64 builds for sbsigntool and systemd in there and had them built
locally as especially for systemd the build time on riscv64 eats up lots
of resources, so that was faster.

** Tags removed: verification-needed verification-needed-kinetic
** Tags added: verification-done verification-done-kinetic

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Title:
  [SRU] [HWE] gnu-efi 3.0.15

Status in gnu-efi package in Ubuntu:
  Fix Released
Status in gnu-efi source package in Bionic:
  Won't Fix
Status in gnu-efi source package in Focal:
  Won't Fix
Status in gnu-efi source package in Jammy:
  Won't Fix
Status in gnu-efi source package in Kinetic:
  Fix Committed

Bug description:
  [Impact]
  gnu-efi 3.0.15 is required for fwupd-efi 1.4 to work correctly on firmware requiring NX memory in boot stack.

  Updating gnu-efi also ensures that all our fwupd-efi 1.4 binaries ship
  the same code which makes it easier to reason about security
  vulnerabilities.

  [Workflow]
  gnu-efi is built in ppa:ubuntu-uefi-team/ubuntu/ppa against the security  pocket only following the in-progress signed boot asset workflow.

  [Target releases]
  We are only building boot assets on the latest stable release, so will SRU that only to kinetic. Rebuilding the boot assets in older stable releases should still work though, they do not technically require gnu-efi 3.0.15 for building (fwupd-efi actually doesn't build due to debhelper 13 dependency).

  The tasks have been set to Won't Fix on older releases to make this
  clear, but this is not a hard decision, if we fix fwupd-efi to build
  on those releases and it turns out we need gnu-efi 3.0.15 anyhow, we
  can still upload it, but of course this increases regression potential
  for those releases.

  [Test plan]
  We can't test the NX support yet as we do not have a shim with NX support. Test that fwupd-efi 1.4 builds. Also test and fix any reverse build depends regressions in the archive.

  We will test NX support when we work on the NX supported shim.

  [Where problems could occur]
  To my knowledge, fwupd-efi is the only supported component in the archive that uses gnu-efi. Some more binaries are built with gnu-efi and might regress, e.g. systemd.

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