allow kexec_file of unsigned images under lockdown

Bug #1800856 reported by Thadeu Lima de Souza Cascardo
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
In Progress
Undecided
Thadeu Lima de Souza Cascardo
Bionic
In Progress
Undecided
Thadeu Lima de Souza Cascardo
Cosmic
In Progress
Undecided
Thadeu Lima de Souza Cascardo
Disco
Won't Fix
Undecided
Thadeu Lima de Souza Cascardo

Bug Description

[Impact]

When using kexec -s with an unsigned image, it will fail requiring a signed image, even if the system is not under lockdown. kexec without the -s option will still work.

[Test case]
Tested with kexec -s with both a signed and unsigned image, both under lockdown and not under lockdown.

[Potential Regressions]
We allow unsigned kernels to be loaded even under lockdown. However, the test case has tested that and it still failed. Other regression would be that no kernel could be loaded. Also tested under test case.

Changed in linux (Ubuntu Bionic):
status: New → In Progress
Changed in linux (Ubuntu Disco):
status: New → In Progress
Changed in linux (Ubuntu Cosmic):
status: New → In Progress
Changed in linux (Ubuntu Disco):
assignee: nobody → Thadeu Lima de Souza Cascardo (cascardo)
Changed in linux (Ubuntu Cosmic):
assignee: nobody → Thadeu Lima de Souza Cascardo (cascardo)
Changed in linux (Ubuntu Bionic):
assignee: nobody → Thadeu Lima de Souza Cascardo (cascardo)
Steve Langasek (vorlon)
Changed in linux (Ubuntu Disco):
status: In Progress → Won't Fix
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