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    Subject[PATCH 09/27] hibernate: Disable when the kernel is locked down
    From
    From: Josh Boyer <jwboyer@fedoraproject.org>

    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.

    Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
    Signed-off-by: David Howells <dhowells@redhat.com>
    Reviewed-by: "Lee, Chun-Yi" <jlee@suse.com>
    cc: linux-pm@vger.kernel.org
    ---
    kernel/power/hibernate.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
    index abef759de7c8..802795becb88 100644
    --- a/kernel/power/hibernate.c
    +++ b/kernel/power/hibernate.c
    @@ -70,7 +70,7 @@ static const struct platform_hibernation_ops *hibernation_ops;

    bool hibernation_available(void)
    {
    - return (nohibernate == 0);
    + return nohibernate == 0 && !kernel_is_locked_down("Hibernation");
    }

    /**
    --
    2.21.0.352.gf09ad66450-goog
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