Thread (26 messages) 26 messages, 4 authors, 2021-08-13
STALE1807d
Revisions (4)
  1. v3 current
  2. v6 [diff vs current]
  3. v7 [diff vs current]
  4. v8 [diff vs current]

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

From: Eric Snowberg <eric.snowberg@oracle.com>
Date: 2021-08-12 02:21:25
Also in: keyrings, linux-integrity, linux-security-module, lkml
Subsystem: extended verification module (evm), integrity measurement architecture (ima), security subsystem, the rest · Maintainers: Mimi Zohar, Roberto Sassu, Dmitry Kasatkin, Paul Moore, James Morris, "Serge E. Hallyn", Linus Torvalds

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@oracle.com>
---
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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