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| author | Dmitry Kasatkin <dmitry.kasatkin@gmail.com> | 2015-09-10 22:06:15 +0300 |
|---|---|---|
| committer | Mimi Zohar <zohar@linux.vnet.ibm.com> | 2015-10-09 15:31:18 -0400 |
| commit | 72e1eed8abb11c79749266d433c817ce36732893 (patch) | |
| tree | 6afb6aa08f190047c5d7d15178d3ba56780a5789 /security | |
| parent | 049e6dde7e57f0054fdc49102e7ef4830c698b46 (diff) | |
| download | lwn-72e1eed8abb11c79749266d433c817ce36732893.tar.gz lwn-72e1eed8abb11c79749266d433c817ce36732893.zip | |
integrity: prevent loading untrusted certificates on the IMA trusted keyring
If IMA_LOAD_X509 is enabled, either directly or indirectly via
IMA_APPRAISE_SIGNED_INIT, certificates are loaded onto the IMA
trusted keyring by the kernel via key_create_or_update(). When
the KEY_ALLOC_TRUSTED flag is provided, certificates are loaded
without first verifying the certificate is properly signed by a
trusted key on the system keyring. This patch removes the
KEY_ALLOC_TRUSTED flag.
Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@huawei.com>
Cc: <stable@vger.kernel.org> # 3.19+
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Diffstat (limited to 'security')
| -rw-r--r-- | security/integrity/digsig.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/security/integrity/digsig.c b/security/integrity/digsig.c index 36fb6b527829..5be9ffbe90ba 100644 --- a/security/integrity/digsig.c +++ b/security/integrity/digsig.c @@ -105,7 +105,7 @@ int __init integrity_load_x509(const unsigned int id, const char *path) rc, ((KEY_POS_ALL & ~KEY_POS_SETATTR) | KEY_USR_VIEW | KEY_USR_READ), - KEY_ALLOC_NOT_IN_QUOTA | KEY_ALLOC_TRUSTED); + KEY_ALLOC_NOT_IN_QUOTA); if (IS_ERR(key)) { rc = PTR_ERR(key); pr_err("Problem loading X.509 certificate (%d): %s\n", |