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From: Roberto Sassu <roberto.sassu@huawei.com>
To: <zohar@linux.ibm.com>
Cc: <linux-integrity@vger.kernel.org>,
	<linux-security-module@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>,
	Roberto Sassu <roberto.sassu@huawei.com>
Subject: [PATCH 0/7] ima/evm: Small enhancements
Date: Fri, 9 Apr 2021 13:43:06 +0200
Message-ID: <20210409114313.4073-1-roberto.sassu@huawei.com> (raw)

This patch set provides some small enhancements for IMA and EVM.

Patch 1 avoids measurement and audit when access to the file will be denied
by IMA itself.

Patch 2 introduces a new policy keyword meta_immutable to protect the label
transition during binary execution.

Patch 3-5 add new hard-coded policies aiming at producing measurement or
enforcing access to files that likely are provided by software vendors.

Patch 6 increases the crypto resistance of EVM by allowing the choice of
the hash algorithm for the HMAC.

Patch 7 adds two new values for the evm= option in the kernel command line
to facilitate the setup of EVM.

Roberto Sassu (7):
  ima: Avoid measurement and audit if access to the file will be denied
  ima: Add meta_immutable appraisal type
  ima: Introduce exec_tcb and tmpfs policies
  ima: Introduce appraise_exec_tcb and appraise_tmpfs policies
  ima: Introduce appraise_exec_immutable policy
  evm: Allow choice of hash algorithm for HMAC
  evm: Extend evm= with allow_metadata_writes and complete values

 Documentation/ABI/testing/ima_policy          |  2 +-
 .../admin-guide/kernel-parameters.txt         | 36 +++++++-
 security/integrity/evm/Kconfig                | 34 +++++++
 security/integrity/evm/evm.h                  |  2 +
 security/integrity/evm/evm_crypto.c           | 55 ++++++++++--
 security/integrity/evm/evm_main.c             | 29 ++++--
 security/integrity/ima/ima_appraise.c         |  9 ++
 security/integrity/ima/ima_main.c             | 20 +++--
 security/integrity/ima/ima_policy.c           | 90 ++++++++++++++-----
 security/integrity/integrity.h                |  4 +-
 10 files changed, 232 insertions(+), 49 deletions(-)

-- 
2.26.2


             reply index

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-09 11:43 Roberto Sassu [this message]
2021-04-09 11:43 ` [PATCH 1/7] ima: Avoid measurement and audit if access to the file will be denied Roberto Sassu
2021-04-09 11:43 ` [PATCH 2/7] ima: Add meta_immutable appraisal type Roberto Sassu
2021-04-09 11:43 ` [PATCH 3/7] ima: Introduce exec_tcb and tmpfs policies Roberto Sassu
2021-04-09 11:43 ` [PATCH 4/7] ima: Introduce appraise_exec_tcb and appraise_tmpfs policies Roberto Sassu
2021-04-09 11:43 ` [PATCH 5/7] ima: Introduce appraise_exec_immutable policy Roberto Sassu
2021-04-09 11:43 ` [PATCH 6/7] evm: Allow choice of hash algorithm for HMAC Roberto Sassu
2021-04-09 11:43 ` [PATCH 7/7] evm: Extend evm= with allow_metadata_writes and complete values Roberto Sassu

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