$ sudo keyctl list %:.builtin_trusted_keys 3 keys in keyring: 855940452: ---lswrv 0 0 asymmetric: Build time autogenerated kernel key: 94aab4eff3692c1dc967cbf81b568f930ac61570 590144975: ---lswrv 0 0 asymmetric: Canonical Ltd. Kernel Module Signing: 88f752e560a1e0737e31163a466ad7b70a850c19 336909020: ---lswrv 0 0 asymmetric: Canonical Ltd. Live Patch Signing: 14df34d1a87cf37625abec039ef2bf521249b969
$ uname -a Linux lamuella 5.4.0-67-generic #75-Ubuntu SMP Fri Feb 19 18:03:38 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux ** Tags removed: verification-needed-focal ** Tags added: verification-done-focal -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-kvm in Ubuntu. https://bugs.launchpad.net/bugs/1898716 Title: Please trust Canonical Livepatch Service kmod signing key Status in linux package in Ubuntu: Fix Committed Status in linux-gcp package in Ubuntu: Confirmed Status in linux-kvm package in Ubuntu: Confirmed Status in linux source package in Bionic: Fix Committed Status in linux-gcp source package in Bionic: New Status in linux-kvm source package in Bionic: Confirmed Status in linux source package in Focal: Fix Committed Status in linux-gcp source package in Focal: Confirmed Status in linux-kvm source package in Focal: Confirmed Status in linux source package in Groovy: Fix Committed Status in linux-gcp source package in Groovy: New Status in linux-kvm source package in Groovy: Confirmed Bug description: [Impact] * Currently Canonical Livepatch service is signing kernel modules that are not trusted by the default Ubuntu kernels * to make Canonical Livepatch service out of the box compatible with SecureBoot, please add Canonical Livepatch service key as trusted in the kernel by default * if user wants to distrust the key, they can remove it via mokx, dbx, and we can revoke it by signing revocation with 'canonical master ca'. [Test Case] * Boot kernel * Check the built-in keyring to ensure that Livepatch key is trusted by the built-in keyring Bad: $ sudo keyctl list %:.builtin_trusted_keys 1 key in keyring: 204809401: ---lswrv 0 0 asymmetric: Build time autogenerated kernel key: 4182e0d0113d4a8f460783380c9e618ef1597bf5 Good: $ sudo keyctl list %:.builtin_trusted_keys 2 keys in keyring: 637801673: ---lswrv 0 0 asymmetric: Build time autogenerated kernel key: 52f8757621e8fc6dd500b32c3ead885a3b6d3cbc 1044383508: ---lswrv 0 0 asymmetric: Canonical Ltd. Live Patch Signing: 14df34d1a87cf37625abec039ef2bf521249b969 [Regression Potential] * Kernel keyring size will increase by one key. And thus kernel image will too. [Other Info] * Current livepatch key fingerprints mokutil uses der format $ openssl x509 -inform der -in /snap/canonical-livepatch/current/keys/livepatch-kmod.x509 -noout -fingerprint -sha256 SHA256 Fingerprint=A4:1E:49:06:12:DD:38:56:F9:78:82:E3:66:66:9E:95:15:78:8E:65:68:50:35:46:0F:AC:59:72:4A:5B:92:FA kernel use pem format $ openssl x509 -inform pem -in debian/canonical-livepatch.pem -noout -fingerprint -sha256 SHA256 Fingerprint=A4:1E:49:06:12:DD:38:56:F9:78:82:E3:66:66:9E:95:15:78:8E:65:68:50:35:46:0F:AC:59:72:4A:5B:92:FA [Target kernels] bionic and up, across the board, but maybe excluding fips kernels?! [Patch] https://lists.ubuntu.com/archives/kernel-team/2020-October/113929.html To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1898716/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
