This bug is awaiting verification that the linux-azure/5.4.0-1102.108 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-focal' to 'verification-done-focal'. If the problem still exists, change the tag 'verification-needed-focal' to 'verification-failed-focal'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: kernel-spammed-focal-linux-azure -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1996892 Title: Expose built-in trusted and revoked certificates Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Fix Released Status in linux source package in Focal: Fix Released Status in linux source package in Jammy: Fix Released Status in linux source package in Kinetic: Fix Released Status in linux source package in Lunar: Confirmed Bug description: [ Impact ] * Kernels have a set of builtin trusted and revoked certificates as a bundle * It is not very easy to access them, one needs to either download linux kernel package source code; or boot the kernel look up builtin hashes; and then find certificates externally * It would be more convenient for inspection to expose these in the buildinfo package, which already exposes auxiliary kernel information [ Test Plan ] * sudo apt install linux-buildinfo-$(uname -r) * check that /usr/lib/linux/$(uname -r)/canonical-certs.pem exists and contains livepatch cert * check that /usr/lib/linux/$(uname -r)/canonical-uefi-2012-all.pem exists and contains 2012 cert Example output: $ grep Subject: -r usr/lib/linux usr/lib/linux/5.19.0-24-generic/canonical-certs.pem: Subject: CN = Canonical Ltd. Live Patch Signing usr/lib/linux/5.19.0-24-generic/canonical-certs.pem: Subject: C = GB, ST = Isle of Man, L = Douglas, O = Canonical Ltd., CN = Canonical Ltd. Kernel Module Signing usr/lib/linux/5.19.0-24-generic/canonical-revoked-certs.pem: Subject: C = GB, ST = Isle of Man, O = Canonical Ltd., OU = Secure Boot, CN = Canonical Ltd. Secure Boot Signing [ Where problems could occur ] * buildinfo is an auxiliary package not installed by default, but used by developer tooling and packaging. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1996892/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : email@example.com Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp