Received-SPF: pass (google.com: domain of linux-nfs+bounces-1989-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) client-ip=147.75.199.223;
Message-ID: <45699f4ed5726fd0d9346069250cd22b04623d9a.camel@huaweicloud.com>
Subject: Re: [PATCH v10 0/25] security: Move IMA and EVM to the LSM
 infrastructure
From: Roberto Sassu <roberto.sassu@huaweicloud.com>
To: Paul Moore <paul@paul-moore.com>, viro@zeniv.linux.org.uk, 
 brauner@kernel.org, jack@suse.cz, chuck.lever@oracle.com,
 jlayton@kernel.org,  neilb@suse.de, kolga@netapp.com, Dai.Ngo@oracle.com,
 tom@talpey.com,  jmorris@namei.org, serge@hallyn.com, zohar@linux.ibm.com, 
 dmitry.kasatkin@gmail.com, eric.snowberg@oracle.com, dhowells@redhat.com, 
 jarkko@kernel.org, stephen.smalley.work@gmail.com, omosnace@redhat.com, 
 casey@schaufler-ca.com, shuah@kernel.org, mic@digikod.net
Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, 
	linux-nfs@vger.kernel.org, linux-security-module@vger.kernel.org, 
	linux-integrity@vger.kernel.org, keyrings@vger.kernel.org, 
	selinux@vger.kernel.org, linux-kselftest@vger.kernel.org, Roberto Sassu
	 <roberto.sassu@huawei.com>
Date: Fri, 16 Feb 2024 08:54:35 +0100
In-Reply-To: <2cdfefc8661d0a82c28250fc22a93a47@paul-moore.com>
References: <20240215103113.2369171-1-roberto.sassu@huaweicloud.com>
	 <2cdfefc8661d0a82c28250fc22a93a47@paul-moore.com>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
User-Agent: Evolution 3.44.4-0ubuntu2 
Precedence: bulk
MIME-Version: 1.0

On Thu, 2024-02-15 at 23:43 -0500, Paul Moore wrote:
> On Feb 15, 2024 Roberto Sassu <roberto.sassu@huaweicloud.com> wrote:
> >=20
> > IMA and EVM are not effectively LSMs, especially due to the fact that i=
n
> > the past they could not provide a security blob while there is another =
LSM
> > active.
> >=20
> > That changed in the recent years, the LSM stacking feature now makes it
> > possible to stack together multiple LSMs, and allows them to provide a
> > security blob for most kernel objects. While the LSM stacking feature h=
as
> > some limitations being worked out, it is already suitable to make IMA a=
nd
> > EVM as LSMs.
> >=20
> > The main purpose of this patch set is to remove IMA and EVM function ca=
lls,
> > hardcoded in the LSM infrastructure and other places in the kernel, and=
 to
> > register them as LSM hook implementations, so that those functions are
> > called by the LSM infrastructure like other regular LSMs.
>=20
> As discussed earlier, I've just merged this into the lsm/dev tree; a big
> thank you to Roberto for working on this and to all helped along the way
> with reviews, testing, etc.  I've wanted to see IMA/EVM integrated as
> proper LSMs for a while and I'm very happy to finally see it happening.

Thank you, and thanks to all! That's an excellent news! Excited about
that!

> Mimi, Roberto, I'm going to hold off on merging anything into the lsm/dev
> tree for a few days in case you decide you would prefer to take these
> patches yourselves.  If I don't hear anything from the two of you, I'll
> plan to send these to Linus during the next merge window.

Perfect!

Roberto