From 023abc6ac7377b2cd0fe3035e596589d4cbc4042 Mon Sep 17 00:00:00 2001 From: Josh Boyer Date: Wed, 8 Nov 2017 15:11:33 +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 0009-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 9c85c782238..08d3d2e8680 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"); } /** -- 2.30.2