** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2019040
Title:
linux-*: please enable dm-verity kconfigs to allow MoK/db verified
root images
Status in linux package in Ubuntu:
New
Status in linux-meta-azure package in Ubuntu:
New
Status in linux-meta-kvm package in Ubuntu:
New
Bug description:
The kvm flavours currently do not enable dm-verity. This stops us from
using integrity protected and verified images in VMs using this kernel
flavour.
Please consider enabling the following kconfigs:
CONFIG_DM_VERITY
CONFIG_DM_VERITY_VERIFY_ROOTHASH_SIG
CONFIG_DM_VERITY_VERIFY_ROOTHASH_SIG_SECONDARY_KEYRING
CONFIG_IMA_ARCH_POLICY
(The latter is needed to ensure that MoK keys can be used to verify
dm-verity images too, via the machine keyring linked to the secondary
keyring)
These are already enabled in the 'main' kernel config, and in other
distros.
As a specific and explicit use case, in the systemd project we want to
test functionality provided by systemd that needs these kconfigs on
Ubuntu machines running the kvm flavour kernel.
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