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While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:
apport-collect 1852799
and then change the status of the bug to 'Confirmed'.
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This change has been made by an automated script, maintained by the
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** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Tags added: eoan
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https://bugs.launchpad.net/bugs/1852799
Title:
Regression: modules in bionic -hwe-18.04-edge kernels aren't signed
since 5.3.0-22
Status in linux package in Ubuntu:
Incomplete
Bug description:
In linux-modules-5.3.0-19-generic and earlier, on bionic, modules were
signed (note "signat: PKCS#7"):
$ modinfo /lib/modules/5.3.0-19-generic/kernel/arch/x86/kernel/cpuid.ko
filename: /lib/modules/5.3.0-19-generic/kernel/arch/x86/kernel/cpuid.ko
license: GPL
description: x86 generic CPUID driver
author: H. Peter Anvin <[email protected]>
srcversion: 94362896973583C3E6E82D1
depends:
retpoline: Y
intree: Y
name: cpuid
vermagic: 5.3.0-19-generic SMP mod_unload
signat: PKCS#7
signer:
sig_key:
sig_hashalgo: md4
Recently they haven't been (note complete absence of signature
fields):
$ modinfo /lib/modules/5.3.0-22-generic/kernel/arch/x86/kernel/cpuid.ko
filename: /lib/modules/5.3.0-22-generic/kernel/arch/x86/kernel/cpuid.ko
license: GPL
description: x86 generic CPUID driver
author: H. Peter Anvin <[email protected]>
srcversion: 94362896973583C3E6E82D1
depends:
retpoline: Y
intree: Y
name: cpuid
vermagic: 5.3.0-22-generic SMP mod_unload
$ modinfo /lib/modules/5.3.0-23-generic/kernel/arch/x86/kernel/cpuid.ko
filename: /lib/modules/5.3.0-23-generic/kernel/arch/x86/kernel/cpuid.ko
license: GPL
description: x86 generic CPUID driver
author: H. Peter Anvin <[email protected]>
srcversion: 94362896973583C3E6E82D1
depends:
retpoline: Y
intree: Y
name: cpuid
vermagic: 5.3.0-23-generic SMP mod_unload
As a result I can't load any modules if I boot via UEFI secure boot!
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