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SubjectRe: [PATCH 09/27] hibernate: Disable when the kernel is locked down
On Thu, Mar 7, 2019 at 6:55 AM Alan Cox <> wrote:
> On Wed, 6 Mar 2019 15:58:55 -0800
> Matthew Garrett <> wrote:
> > From: Josh Boyer <>
> >
> > There is currently no way to verify the resume image when returning
> > from hibernate. This might compromise the signed modules trust model,
> > so until we can work with signed hibernate images we disable it when the
> > kernel is locked down.
> That one is a bit worrying since whilst the other stuff may be useful in
> some business environments, mandatory hibernate not suspend to RAM is a
> common corporate IT policy because of concerns about theft and recovery
> of memory contents.

Suse have a solution for this that I'd like to see pushed again, but
from a practical perspective enterprise distributions have been
shipping this for some time without significant obvious customer

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