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authorDmitry Kasatkin <dmitry.kasatkin@gmail.com>2015-09-10 22:06:15 +0300
committerMimi Zohar <zohar@linux.vnet.ibm.com>2015-10-09 15:31:18 -0400
commit72e1eed8abb11c79749266d433c817ce36732893 (patch)
tree6afb6aa08f190047c5d7d15178d3ba56780a5789 /security
parent049e6dde7e57f0054fdc49102e7ef4830c698b46 (diff)
downloadlinux-linaro-stable-72e1eed8abb11c79749266d433c817ce36732893.tar.gz
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.c2
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",