diff mbox series

[08/27] hibernate: Disable when the kernel is locked down

Message ID 20190325220954.29054-9-matthewgarrett@google.com (mailing list archive)
State Superseded, archived
Headers show
Series None | expand

Commit Message

Matthew Garrett March 25, 2019, 10:09 p.m. UTC 
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>
Cc: rjw@rjwysocki.net
Cc: pavel@ucw.cz
cc: linux-pm@vger.kernel.org
Signed-off-by: Matthew Garrett <matthewgarrett@google.com>
---
 kernel/power/hibernate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

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");
 }
 
 /**