From: Mimi Zohar <zohar@linux.ibm.com>
To: Kees Cook <keescook@chromium.org>
Cc: "Paul Moore" <paul@paul-moore.com>,
"James Morris" <jmorris@namei.org>,
"Serge E. Hallyn" <serge@hallyn.com>,
"Dmitry Kasatkin" <dmitry.kasatkin@gmail.com>,
"Mickaël Salaün" <mic@digikod.net>,
linux-security-module@vger.kernel.org,
linux-integrity@vger.kernel.org, "KP Singh" <kpsingh@kernel.org>,
"Casey Schaufler" <casey@schaufler-ca.com>,
"John Johansen" <john.johansen@canonical.com>,
linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org
Subject: Re: [PATCH 1/9] integrity: Prepare for having "ima" and "evm" available in "integrity" LSM
Date: Wed, 19 Oct 2022 10:34:08 -0400 [thread overview]
Message-ID: <dd90cbafa0ba59be135a878bc7abcf4d322d43a1.camel@linux.ibm.com> (raw)
In-Reply-To: <20221013223654.659758-1-keescook@chromium.org>
On Thu, 2022-10-13 at 15:36 -0700, Kees Cook wrote:
> Move "integrity" LSM to the end of the Kconfig list and prepare for
> having ima and evm LSM initialization called from the top-level
> "integrity" LSM.
The securityfs integrity directory and the "iint_cache" are shared
IMA/EVM resources. Just because the "iint_cache" was on an LSM hook,
it should never have been treated as an LSM on its own. IMA maintains
and verifies file data integrity, while EVM maintains and verifies file
metadata integrity. IMA and EVM may both be configured and enabled, or
independently of each other. However, only if either IMA or EVM are
configured and enabled, should the iint_cache be created. There is
absolutely no need for an independent "integrity" LSM.
--
thanks,
Mimi
next prev parent reply other threads:[~2022-10-19 14:48 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-13 22:36 [PATCH 0/9] integrity: Move hooks into LSM Kees Cook
2022-10-13 22:36 ` [PATCH 1/9] integrity: Prepare for having "ima" and "evm" available in "integrity" LSM Kees Cook
2022-10-14 14:40 ` Mickaël Salaün
2022-10-14 17:59 ` Kees Cook
2022-10-17 9:26 ` Mickaël Salaün
2022-10-17 18:11 ` Kees Cook
2022-10-19 18:33 ` Kees Cook
2022-10-19 19:13 ` Mimi Zohar
2022-10-19 22:37 ` Kees Cook
2022-10-19 14:34 ` Mimi Zohar [this message]
2022-10-19 18:28 ` Kees Cook
2022-10-13 22:36 ` [PATCH 2/9] security: Move trivial IMA hooks into LSM Kees Cook
2022-10-19 14:34 ` Mimi Zohar
2022-10-19 18:59 ` Kees Cook
2022-10-19 20:45 ` Mimi Zohar
2022-10-19 23:41 ` Kees Cook
2022-10-20 12:17 ` Mimi Zohar
2022-10-21 14:53 ` Dr. Greg
2022-10-21 15:09 ` Casey Schaufler
2022-10-13 22:36 ` [PATCH 3/9] ima: Move xattr " Kees Cook
2022-10-18 15:07 ` Christian Brauner
2022-10-19 13:24 ` Mimi Zohar
2022-10-13 22:36 ` [PATCH 4/9] ima: Move ima_file_free() " Kees Cook
2022-10-18 15:02 ` Christian Brauner
2022-10-18 15:32 ` Roberto Sassu
2022-10-18 18:29 ` Kees Cook
2022-10-19 6:55 ` Roberto Sassu
2022-10-20 15:47 ` Paul Moore
2022-10-13 22:36 ` [PATCH 5/9] LSM: Introduce inode_post_setattr hook Kees Cook
2022-10-18 14:50 ` Christian Brauner
2022-10-13 22:36 ` [PATCH 6/9] fs: Introduce file_to_perms() helper Kees Cook
2022-10-18 14:10 ` Christian Brauner
2022-10-18 18:25 ` Kees Cook
2022-10-20 17:29 ` Casey Schaufler
2022-10-20 23:04 ` Kees Cook
2022-10-13 22:36 ` [PATCH 7/9] ima: Move ima_file_check() into LSM Kees Cook
2022-10-13 22:36 ` [PATCH 8/9] integrity: Move trivial hooks " Kees Cook
2022-10-13 22:36 ` [PATCH 9/9] integrity: Move integrity_inode_get() out of global header Kees Cook
2022-10-13 22:47 ` [PATCH 0/9] integrity: Move hooks into LSM Paul Moore
2022-10-14 1:16 ` Mimi Zohar
2022-10-18 15:31 ` Mickaël Salaün
2022-10-18 15:38 ` Roberto Sassu
2022-10-18 18:31 ` Kees Cook
2022-10-20 17:36 ` Casey Schaufler
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