[PATCH v3 14/14] integrity: change ima link restriction to include mok keys

Eric Snowberg eric.snowberg at oracle.com
Thu Aug 12 02:18:55 UTC 2021

With the introduction of the mok keyring, the end-user may choose to
trust Machine Owner Keys (MOK) within the kernel. If they have chosen to
trust them, the .mok keyring will contain these keys.  If not, the mok
keyring will always be empty.  Update the restriction check to allow the
ima keyring to also trust mok keys when the secondary keyring is also

Signed-off-by: Eric Snowberg <eric.snowberg at oracle.com>
v3: Initial version
 security/integrity/digsig.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/security/integrity/digsig.c b/security/integrity/digsig.c
index 996bea950972..1419ff4fc2b9 100644
--- a/security/integrity/digsig.c
+++ b/security/integrity/digsig.c
@@ -34,7 +34,7 @@ static const char * const keyring_name[INTEGRITY_KEYRING_MAX] = {
-#define restrict_link_to_ima restrict_link_by_builtin_and_secondary_trusted
+#define restrict_link_to_ima restrict_link_by_builtin_secondary_and_ca_trusted
 #define restrict_link_to_ima restrict_link_by_builtin_trusted

More information about the Linux-security-module-archive mailing list