linux-kernel - [RFC 0/2] ima: evm: Add kernel cmdline options to disable IMA/EVM

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Message-ID: <20241217202525.1802109-1-song@kernel.org>
Date: Tue, 17 Dec 2024 12:25:23 -0800
From: Song Liu <song@...nel.org>
To: linux-fsdevel@...r.kernel.org,
	linux-integrity@...r.kernel.org,
	linux-security-module@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: roberto.sassu@...wei.com,
	dmitry.kasatkin@...il.com,
	eric.snowberg@...cle.com,
	paul@...l-moore.com,
	jmorris@...ei.org,
	serge@...lyn.com,
	kernel-team@...a.com,
	brauner@...nel.org,
	jack@...e.cz,
	viro@...iv.linux.org.uk,
	Song Liu <song@...nel.org>
Subject: [RFC 0/2] ima: evm: Add kernel cmdline options to disable IMA/EVM

While reading and testing LSM code, I found IMA/EVM consume per inode
storage even when they are not in use. Add options to diable them in
kernel command line. The logic and syntax is mostly borrowed from an
old serious [1].

[1] https://lore.kernel.org/lkml/cover.1398259638.git.d.kasatkin@samsung.com/

Song Liu (2):
  ima: Add kernel parameter to disable IMA
  evm: Add kernel parameter to disable EVM

 security/integrity/evm/evm.h       |  6 ++++++
 security/integrity/evm/evm_main.c  | 22 ++++++++++++++--------
 security/integrity/evm/evm_secfs.c |  3 ++-
 security/integrity/ima/ima_main.c  | 13 +++++++++++++
 4 files changed, 35 insertions(+), 9 deletions(-)

--
2.43.5