From: Josh Boyer <[email protected]> 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 <[email protected]> Signed-off-by: David Howells <[email protected]> Signed-off-by: Matthew Garrett <[email protected]> Cc: [email protected] Cc: [email protected] cc: [email protected] --- kernel/power/hibernate.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c index abef759de7c8..928b198cfa26 100644 --- a/kernel/power/hibernate.c +++ b/kernel/power/hibernate.c @@ -70,7 +70,8 @@ static const struct platform_hibernation_ops *hibernation_ops; bool hibernation_available(void) { - return (nohibernate == 0); + return nohibernate == 0 && !kernel_is_locked_down("Hibernation", + LOCKDOWN_INTEGRITY); } /** -- 2.21.0.392.gf8f6787159e-goog
