From: Stefan Berger <stefanb@linux.vnet.ibm.com>
To: linux-integrity@vger.kernel.org
Cc: zohar@linux.ibm.com, serge@hallyn.com,
christian.brauner@ubuntu.com, containers@lists.linux.dev,
dmitry.kasatkin@gmail.com, ebiederm@xmission.com,
krzysztof.struczynski@huawei.com, roberto.sassu@huawei.com,
mpeters@redhat.com, lhinds@redhat.com, lsturman@redhat.com,
puiterwi@redhat.com, jejb@linux.ibm.com, jamjoom@us.ibm.com,
linux-kernel@vger.kernel.org, paul@paul-moore.com,
rgb@redhat.com, linux-security-module@vger.kernel.org,
jmorris@namei.org, Stefan Berger <stefanb@linux.ibm.com>
Subject: [PATCH v7 07/14] ima: Only accept AUDIT rules for IMA non-init_ima_ns namespaces for now
Date: Thu, 16 Dec 2021 00:43:16 -0500 [thread overview]
Message-ID: <20211216054323.1707384-8-stefanb@linux.vnet.ibm.com> (raw)
In-Reply-To: <20211216054323.1707384-1-stefanb@linux.vnet.ibm.com>
From: Stefan Berger <stefanb@linux.ibm.com>
Only accept AUDIT rules for non-init_ima_ns namespaces rejecting all rules
that require support for measuring, appraisal, and hashing.
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
---
security/integrity/ima/ima_policy.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c
index 786e4fd81ba9..3191979235fc 100644
--- a/security/integrity/ima/ima_policy.c
+++ b/security/integrity/ima/ima_policy.c
@@ -1793,6 +1793,16 @@ static int ima_parse_rule(struct ima_namespace *ns,
result = -EINVAL;
break;
}
+
+ /* IMA namespace only accepts AUDIT rules */
+ if (ns != &init_ima_ns) {
+ switch (entry->action) {
+ case MEASURE:
+ case APPRAISE:
+ case HASH:
+ result = -EINVAL;
+ }
+ }
}
if (!result && !ima_validate_rule(entry))
result = -EINVAL;
--
2.31.1
next prev parent reply other threads:[~2021-12-16 5:43 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-16 5:43 [PATCH v7 00/14] ima: Namespace IMA with audit support in IMA-ns Stefan Berger
2021-12-16 5:43 ` [PATCH v7 01/14] ima: Add IMA namespace support Stefan Berger
2021-12-16 14:08 ` Christian Brauner
2021-12-16 21:52 ` James Bottomley
2021-12-17 9:55 ` Christian Brauner
2021-12-16 5:43 ` [PATCH v7 02/14] ima: Define ns_status for storing namespaced iint data Stefan Berger
2021-12-16 5:43 ` [PATCH v7 03/14] ima: Namespace audit status flags Stefan Berger
2021-12-16 5:43 ` [PATCH v7 04/14] ima: Move policy related variables into ima_namespace Stefan Berger
2021-12-16 14:26 ` kernel test robot
2021-12-16 5:43 ` [PATCH v7 05/14] ima: Move ima_htable " Stefan Berger
2021-12-16 5:43 ` [PATCH v7 06/14] ima: Move measurement list related variables " Stefan Berger
2021-12-16 5:43 ` Stefan Berger [this message]
2021-12-16 5:43 ` [PATCH v7 08/14] ima: Implement hierarchical processing of file accesses Stefan Berger
2021-12-16 5:43 ` [PATCH v7 09/14] securityfs: Only use simple_pin_fs/simple_release_fs for init_user_ns Stefan Berger
2021-12-16 5:43 ` [PATCH v7 10/14] securityfs: Extend securityfs with namespacing support Stefan Berger
2021-12-16 13:40 ` Christian Brauner
2021-12-16 16:28 ` Christian Brauner
2022-01-03 14:09 ` Stefan Berger
2021-12-17 16:21 ` [RFC PATCH] securityfs: securityfs_dir_inode_operations can be static kernel test robot
2021-12-17 16:29 ` [PATCH v7 10/14] securityfs: Extend securityfs with namespacing support kernel test robot
2021-12-16 5:43 ` [PATCH v7 11/14] ima: Move some IMA policy and filesystem related variables into ima_namespace Stefan Berger
2021-12-16 5:43 ` [PATCH v7 12/14] ima: Use mac_admin_ns_capable() to check corresponding capability Stefan Berger
2021-12-16 5:43 ` [PATCH v7 13/14] ima: Move dentry into ima_namespace and others onto stack Stefan Berger
2021-12-16 5:43 ` [PATCH v7 14/14] ima: Setup securityfs for IMA namespace Stefan Berger
2021-12-16 10:59 ` kernel test robot
2021-12-16 12:02 ` kernel test robot
2021-12-16 13:51 ` Christian Brauner
2021-12-16 21:38 ` Stefan Berger
2021-12-16 12:50 ` [PATCH v7 00/14] ima: Namespace IMA with audit support in IMA-ns Christian Brauner
2021-12-16 13:31 ` Christian Brauner
2021-12-16 21:27 ` Stefan Berger
2021-12-17 10:25 ` Christian Brauner
2021-12-18 2:38 ` Stefan Berger
2021-12-16 21:00 ` Stefan Berger
2021-12-17 10:06 ` Christian Brauner
2021-12-27 17:29 ` Stefan Berger
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