diff options
Diffstat (limited to 'security/integrity/digsig_asymmetric.c')
| -rw-r--r-- | security/integrity/digsig_asymmetric.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/security/integrity/digsig_asymmetric.c b/security/integrity/digsig_asymmetric.c index 4fec1816a2b3..5ade2a7517a6 100644 --- a/security/integrity/digsig_asymmetric.c +++ b/security/integrity/digsig_asymmetric.c @@ -17,6 +17,7 @@ #include <linux/key-type.h> #include <crypto/public_key.h> #include <keys/asymmetric-type.h> +#include <keys/system_keyring.h> #include "integrity.h" @@ -32,9 +33,22 @@ static struct key *request_asymmetric_key(struct key *keyring, uint32_t keyid) pr_debug("key search: \"%s\"\n", name); + key = get_ima_blacklist_keyring(); + if (key) { + key_ref_t kref; + + kref = keyring_search(make_key_ref(key, 1), + &key_type_asymmetric, name); + if (!IS_ERR(kref)) { + pr_err("Key '%s' is in ima_blacklist_keyring\n", name); + return ERR_PTR(-EKEYREJECTED); + } + } + if (keyring) { /* search in specific keyring */ key_ref_t kref; + kref = keyring_search(make_key_ref(keyring, 1), &key_type_asymmetric, name); if (IS_ERR(kref)) |