[PATCH v3 13/14] integrity: store reference to mok keyring

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Store a reference to the mok keyring in system keyring code. The
reference is only set when trust_moklist is true.  This prevents the mok
keyring from linking to the secondary trusted keyrings with an empty mok
list.

Signed-off-by: Eric Snowberg <eric.snowberg@xxxxxxxxxx>
---
v2: Initial version
v3: Unmodified from v2
---
 security/integrity/digsig.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/security/integrity/digsig.c b/security/integrity/digsig.c
index 0601ef458e03..996bea950972 100644
--- a/security/integrity/digsig.c
+++ b/security/integrity/digsig.c
@@ -112,6 +112,8 @@ static int __init __integrity_init_keyring(const unsigned int id,
 	} else {
 		if (id == INTEGRITY_KEYRING_PLATFORM)
 			set_platform_trusted_keys(keyring[id]);
+		if (id == INTEGRITY_KEYRING_MOK && trust_moklist())
+			set_mok_trusted_keys(keyring[id]);
 		if (id == INTEGRITY_KEYRING_IMA)
 			load_module_cert(keyring[id]);
 	}
-- 
2.18.4




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