Re: [PATCH v8 04/12] x86/spectre: Add boot time option to select Spectre v2 mitigation

[Jiri Kosina]

On Tue, 23 Jan 2018, Jiri Kosina wrote:

> So that vermagic patch doesn't really help anything in real world (FWIW 
> I've just dropped it from SLE kernel). "Potentially insecure" doesn't mean 
> it shouldn't be loaded if the user wishes so. Only "functionally 
> incorrect" (which is the kernel ABI compatibility check) should be the 
> show stopper.

... one of the supporting arguments here obviously is: those external 
modules are quite often opening so many *other* holes into the system, 
that refusing to load it *just* because of kernel being retpolined while 
the module is not sounds more like not lettting a drunk and armed 
terrorist drive a plane, with the justification being the lack of a proper 
stamped license.

-- 
Jiri Kosina
SUSE Labs