Skip to content

9B release: bump bootmgfw svn to v11 - #469

Merged
olkorsha merged 2 commits into
microsoft:mainfrom
olkorsha:user/olkorsha/9B_svn
Oct 13, 2026
Merged

olkorsha merged 2 commits into
microsoft:mainfrom
olkorsha:user/olkorsha/9B_svn

Conversation

@olkorsha

@olkorsha olkorsha commented Sep 8, 2026

Copy link
Copy Markdown
Collaborator

Description

Keeping old DBXUpdateSVN.bin for backwards compat despite it now being insufficient, and adding 3 files:

  • dbx_SVN_Legacy.efiauth2: has the same contents of the existing DBXUpdateSVN.bin, however the file is slightly different due to being signed and generated later
  • dbx_SVN_bootmgfw_v11.efiauth2: signed by KEK 2011 and has bootmgr v11 SVN (01612B139DD5598843AB1C185C3CB2EB9200000B000000000000000000000000)
  • dbx_SVN.efiauth2: signed by KEK 2023 and has all the latest SVN values (bootmgr v11, cdboot v3, wdsmgfw v3

@garlin-cant-code

Copy link
Copy Markdown

October 2026 CU is now at BootMgr SVN 12.0. This approval process needs to work faster.

@olkorsha

Copy link
Copy Markdown
Collaborator Author

garlin (@garlin-cant-code) looks like its the 2 reviewer policy, will work on getting this and the latest released update in

@olkorsha
olkorsha merged commit daa3271 into microsoft:main Oct 13, 2026
3 checks passed
Jörgen (wthrbtn) added a commit to air-gapped/skills that referenced this pull request Oct 27, 2026
… not absent or total

Classification: version-drift
Source: microsoft/secureboot_objects#448 (2026-09-01, split dbx into SignedByKEK2023/ and SignedByKEK2011/)
        microsoft/secureboot_objects#469 + release v1.7.1 (2026-10-20): KEK-2011 SVN file
          "has bootmgr v11 SVN"; KEK-2023 dbx_SVN.efiauth2 "has all the latest SVN values (bootmgr v11, cdboot v3, wdsmgfw v3)"
        microsoft/secureboot_objects#479 (2026-10-20, 2011-signed bootmgfw v12 SVN still published)
        microsoft/secureboot_objects#468 (old DBX/<arch>/ paths restored, deleted in 2027)
        Signer of each tree read from the payload bytes: SignedByKEK2011 files chain to KEK CA 2011,
        SignedByKEK2023 files to KEK 2K CA 2023.
Before: SKILL.md — freeze "now live": a 2011-KEK machine "can't receive new dbx revocations";
        mechanism.md and gotchas-and-decisions.md — freeze "not yet started" (three files, two contradictory states)
After:  all three — partial: new hashes and bootmgr SVN still ship 2011-signed; cdboot/wdsmgfw SVN ship
        2023-signed only. mechanism.md gains the three-path table so an agent applies the right tree.
        Backlog watch item re-aimed at the end of 2011-signed dbx.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

4 participants