Hi! > allow the running kernel image to be changed including the loading of > modules that aren't validly signed with a key we recognise, fiddling with > MSR registers and disallowing hibernation,
"." at EOL.
> @@ -158,6 +158,21 @@ config HARDENED_USERCOPY_PAGESPAN
> been removed. This config is intended to be used only while
> trying to find such users.
>
> +config LOCK_DOWN_KERNEL
> + bool "Allow the kernel to be 'locked down'"
Locked down, or 'locked down' ? :-).
> + help
> + Allow the kernel to be locked down under certain circumstances, for
> + instance if UEFI secure boot is enabled. Locking down the kernel
> + turns off various features that might otherwise allow access to the
> + kernel image (eg. setting MSR registers).
I'd add something that clarifies it is "running" kernel image.
> +config ALLOW_LOCKDOWN_LIFT
> + bool
Don't you need to add 'bool "something"' so that user can actually
select this?
Pavel
--
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http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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