Note: This bug is displayed in read-only format because the product is no longer active in Red Hat Bugzilla.

RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.

Unified Kernel Image (UKI) was added to RHEL9.2 and Fedora/ARK recently (kernel-uki-virt package). The image is currently signed with the same SecureBoot certificate as our standard kernel (vmlinuz) and we'd like to change that. The main motivation for creating a new certificate for UKI is to make it possible to distinguish between standard vmlinuz and UKI in PCR measurements, namely PCR7. 

Currently, for Azure Confidential VMs we seal root volume key against PCR4+PCR7 and this is suboptimal as PCR4 changes with every UKI update. We'd like to switch to sealing against PCR7 only but in that case measurements for standard vmlinuz and for UKI must differ and this is not the case with the current signing scheme.

We need to introduce a new certificate for signing UKIs and export its public part in redhat-sb-certs to be able to switch to in in the kernel specfile. We also want to do the same change in Fedora/ARK.

(I may be missing some details on how new SB certs are added, hope the BZ is the right starting point)

Closing this as a redhat-release component bug, as it needs to be filed with the ProdSec team (and they are not in Bugzilla).