From 71f8aa7cf357170dc5a2f71508dbc641060438bd Mon Sep 17 00:00:00 2001 From: Josh Boyer Date: Mon, 18 Feb 2019 12:44:59 +0000 Subject: [PATCH] hibernate: Disable when the kernel is locked down 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 Signed-off-by: David Howells Reviewed-by: "Lee, Chun-Yi" cc: linux-pm@vger.kernel.org Gbp-Pq: Topic features/all/lockdown Gbp-Pq: Name 0010-hibernate-Disable-when-the-kernel-is-locked-down.patch --- 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 cd7434e6000..0f30de4a712 100644 --- a/kernel/power/hibernate.c +++ b/kernel/power/hibernate.c @@ -68,7 +68,7 @@ static const struct platform_hibernation_ops *hibernation_ops; bool hibernation_available(void) { - return (nohibernate == 0); + return nohibernate == 0 && !kernel_is_locked_down("Hibernation"); } /** -- 2.30.2