diff options
| author | Petko Manolov <petkan@mip-labs.com> | 2015-12-02 17:47:55 +0200 |
|---|---|---|
| committer | Oleksandr Suvorov <oleksandr.suvorov@toradex.com> | 2020-05-25 13:57:21 +0300 |
| commit | 72d6cdc59c00405719b62eb3dedf0def2b6e028e (patch) | |
| tree | ee2c92593ff5cd908179b1c3d96d0346c19c6216 /crypto | |
| parent | caf4e7107db7f3f940af9e1afa93608cd2bcb584 (diff) | |
IMA: create machine owner and blacklist keyrings
commit 41c89b64d7184a780f12f2cccdabe65cb2408893 upstream
This option creates IMA MOK and blacklist keyrings. IMA MOK is an
intermediate keyring that sits between .system and .ima keyrings,
effectively forming a simple CA hierarchy. To successfully import a key
into .ima_mok it must be signed by a key which CA is in .system keyring.
On turn any key that needs to go in .ima keyring must be signed by CA in
either .system or .ima_mok keyrings. IMA MOK is empty at kernel boot.
IMA blacklist keyring contains all revoked IMA keys. It is consulted
before any other keyring. If the search is successful the requested
operation is rejected and error is returned to the caller.
Signed-off-by: Petko Manolov <petkan@mip-labs.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/asymmetric_keys/x509_public_key.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/crypto/asymmetric_keys/x509_public_key.c b/crypto/asymmetric_keys/x509_public_key.c index 2a44b3752471..9e9e5a6a9ed6 100644 --- a/crypto/asymmetric_keys/x509_public_key.c +++ b/crypto/asymmetric_keys/x509_public_key.c @@ -321,6 +321,8 @@ static int x509_key_preparse(struct key_preparsed_payload *prep) goto error_free_cert; } else if (!prep->trusted) { ret = x509_validate_trust(cert, get_system_trusted_keyring()); + if (ret) + ret = x509_validate_trust(cert, get_ima_mok_keyring()); if (!ret) prep->trusted = 1; } |