From: Eric Snowberg <eric.snowberg@oracle.com>
To: zohar@linux.ibm.com, dmitry.kasatkin@gmail.com,
jmorris@namei.org, serge@hallyn.com
Cc: dhowells@redhat.com, geert@linux-m68k.org,
gregkh@linuxfoundation.org, nayna@linux.ibm.com,
eric.snowberg@oracle.com, tglx@linutronix.de,
bauerman@linux.ibm.com, mpe@ellerman.id.au,
linux-integrity@vger.kernel.org,
linux-security-module@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [RFC PATCH 2/2] ima: Change default secure_boot policy to include appended signatures
Date: Thu, 6 Feb 2020 11:42:26 -0500 [thread overview]
Message-ID: <20200206164226.24875-3-eric.snowberg@oracle.com> (raw)
In-Reply-To: <20200206164226.24875-1-eric.snowberg@oracle.com>
Change the default secure_boot policy from:
appraise func=MODULE_CHECK appraise_type=imasig
appraise func=FIRMWARE_CHECK appraise_type=imasig
appraise func=KEXEC_KERNEL_CHECK appraise_type=imasig
appraise func=POLICY_CHECK appraise_type=imasig
to
appraise func=MODULE_CHECK appraise_type=imasig|modsig
appraise func=FIRMWARE_CHECK appraise_type=imasig
appraise func=KEXEC_KERNEL_CHECK appraise_type=imasig|modsig
appraise func=POLICY_CHECK appraise_type=imasig
This will allow appended signatures to work with the default
secure_boot policy.
Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
---
security/integrity/ima/ima_policy.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c
index ef8dfd47c7e3..5d835715b472 100644
--- a/security/integrity/ima/ima_policy.c
+++ b/security/integrity/ima/ima_policy.c
@@ -189,11 +189,11 @@ static struct ima_rule_entry build_appraise_rules[] __ro_after_init = {
static struct ima_rule_entry secure_boot_rules[] __ro_after_init = {
{.action = APPRAISE, .func = MODULE_CHECK,
- .flags = IMA_FUNC | IMA_DIGSIG_REQUIRED},
+ .flags = IMA_FUNC | IMA_DIGSIG_REQUIRED | IMA_MODSIG_ALLOWED},
{.action = APPRAISE, .func = FIRMWARE_CHECK,
.flags = IMA_FUNC | IMA_DIGSIG_REQUIRED},
{.action = APPRAISE, .func = KEXEC_KERNEL_CHECK,
- .flags = IMA_FUNC | IMA_DIGSIG_REQUIRED},
+ .flags = IMA_FUNC | IMA_DIGSIG_REQUIRED | IMA_MODSIG_ALLOWED},
{.action = APPRAISE, .func = POLICY_CHECK,
.flags = IMA_FUNC | IMA_DIGSIG_REQUIRED},
};
--
2.18.1
next prev parent reply other threads:[~2020-02-06 16:45 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-06 16:42 [RFC PATCH 0/2] ima: uncompressed module appraisal support Eric Snowberg
2020-02-06 16:42 ` [RFC PATCH 1/2] ima: Implement support for uncompressed module appended signatures Eric Snowberg
2020-02-06 17:07 ` Lakshmi Ramasubramanian
2020-02-06 17:30 ` Eric Snowberg
2020-02-06 18:05 ` Mimi Zohar
2020-02-06 19:01 ` Eric Snowberg
2020-02-06 19:10 ` Mimi Zohar
2020-02-06 16:42 ` Eric Snowberg [this message]
2020-02-06 20:22 ` [RFC PATCH 0/2] ima: uncompressed module appraisal support Nayna
2020-02-06 21:40 ` Eric Snowberg
2020-02-07 14:51 ` Mimi Zohar
2020-02-07 16:57 ` Eric Snowberg
2020-02-07 17:40 ` Mimi Zohar
2020-02-07 17:49 ` Eric Snowberg
2020-02-07 18:28 ` Mimi Zohar
2020-02-07 18:45 ` Eric Snowberg
2020-02-07 18:54 ` Mimi Zohar
2020-02-07 21:38 ` Eric Snowberg
2020-02-08 23:43 ` Mimi Zohar
2020-02-10 16:34 ` Eric Snowberg
2020-02-10 17:09 ` Mimi Zohar
2020-02-10 19:24 ` Eric Snowberg
2020-02-10 20:33 ` Mimi Zohar
2020-02-11 17:33 ` Eric Snowberg
2020-02-12 14:04 ` Nayna
2020-02-13 15:32 ` Eric Snowberg
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