Re: [PATCH v3] killswitch: add per-function short-circuit mitigation primitive

[Song Liu]

On Tue, May 19, 2026 at 12:57 PM Sasha Levin <sas...@kernel.org> wrote:
[...]
> >Fully agree with Song here that there is no clear boundary, and that the
> >killswitch could lead to arbitrary, hard to debug breakage if applied to
> >the wrong function.. introducing worse bugs than the one being mitigated
> >or even /short-circuit LSM enforcement/ (engage security_file_open 0,
> >engage cap_capable 0, engage apparmor_* etc).
>
> This is similar to livepatch, right? Do we need guardrails there too?

livepatch has the same guardrails as other kernel modules:
CONFIG_MODULE_SIG, CONFIG_MODULE_SIG_FORCE, etc.

Thanks,
Song