This bug was fixed in the package linux - 6.5.0-7.7
---------------
linux (6.5.0-7.7) mantic; urgency=medium
* mantic/linux: 6.5.0-7.7 -proposed tracker (LP: #2037611)
* kexec enable to load/kdump zstd compressed zimg (LP: #2037398)
- [Packaging] Revert arm64 image format to Image.gz
* Mantic minimized/minimal cloud images do not receive IP address during
provisioning (LP: #2036968)
- [Config] Enable virtio-net as built-in to avoid race
* Miscellaneous Ubuntu changes
- SAUCE: Add mdev_set_iommu_device() kABI
- [Config] update gcc version in annotations
-- Andrea Righi <andrea.ri...@canonical.com> Thu, 28 Sep 2023 10:19:24
+0200
** Changed in: linux (Ubuntu)
Status: Incomplete => Fix Released
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https://bugs.launchpad.net/bugs/2034061
Title:
Default module signing algo should be accelerated
Status in linux package in Ubuntu:
Fix Released
Bug description:
[ Impact ]
* Slow secureboot due to unoptimized signature verification algo
[ Test Plan ]
* Check config enforcement:
If CONFIG_MODULE_SIG_(ALG)=y, then CONFIG_CRYPTO_(ALG)* should be =y
as well
[ Where problems could occur ]
* Very old hardware incapable of a given optimisation will not gain
from having optimised algo built-in
[ Other Info ]
* Full details
Default module signing algo should be accelerated
Default crypto signing algorithm for kernel modules, all its
accelerated versions, should be built-in. This is to allow secureboot
of accelerated machines to boot as quickly as possible when verifying
each module signature.
For example:
given CONFIG_MODULE_SIG_SHA512=y
All of
CONFIG_CRYPTO_SHA512 policy<{'amd64': 'y',
'arm64': 'y', 'armhf': 'y', 'ppc64el': 'y', 'riscv64': 'y', 's390x': 'y'}>
CONFIG_CRYPTO_SHA512 note<'module signing'>
CONFIG_CRYPTO_SHA512_ARM policy<{'armhf': 'm'}>
CONFIG_CRYPTO_SHA512_ARM64 policy<{'arm64': 'm'}>
CONFIG_CRYPTO_SHA512_ARM64_CE policy<{'arm64': 'm'}>
CONFIG_CRYPTO_SHA512_S390 policy<{'s390x': 'm'}>
CONFIG_CRYPTO_SHA512_SSSE3 policy<{'amd64': 'm'}>
Should be =y on secureboot platforms.
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