[PATCH V3 08/11] kexec: Disable at runtime if the kernel enforces module loading restrictions

Matthew Garrett matthew.garrett at nebula.com
Wed Sep 4 16:12:09 EDT 2013


On Wed, 2013-09-04 at 14:09 -0600, jerry.hoemann at hp.com wrote:
> On Tue, Sep 03, 2013 at 07:50:15PM -0400, Matthew Garrett wrote:
> > kexec permits the loading and execution of arbitrary code in ring 0, which
> > is something that module signing enforcement is meant to prevent. It makes
> > sense to disable kexec in this situation.
> > 
> > Signed-off-by: Matthew Garrett <matthew.garrett at nebula.com>
> 
> 
> Matthew,
> 
> Disabling kexec will disable kdump, correct?

Yes.

> Are there plans to enable kdump on a system where secure
> boot is enabled?

Yes, Vivek Goyal (cc:ed) is working on that.

-- 
Matthew Garrett <matthew.garrett at nebula.com>


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