linux-kernel - Re: [PATCH v11 0/4] evm: Do HMAC of multiple per LSM xattrs for new inodes

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Message-ID: <CAHC9VhSzC0zV31XrEz06HKp=NNbz0XPT24ja0O1sZtNM_aXqHg@mail.gmail.com>
Date:   Fri, 9 Jun 2023 16:05:57 -0400
From:   Paul Moore <paul@...l-moore.com>
To:     Roberto Sassu <roberto.sassu@...weicloud.com>
Cc:     zohar@...ux.ibm.com, dmitry.kasatkin@...il.com, jmorris@...ei.org,
        serge@...lyn.com, stephen.smalley.work@...il.com,
        eparis@...isplace.org, casey@...aufler-ca.com,
        linux-kernel@...r.kernel.org, linux-integrity@...r.kernel.org,
        linux-security-module@...r.kernel.org, selinux@...r.kernel.org,
        bpf@...r.kernel.org, kpsingh@...nel.org, keescook@...omium.org,
        nicolas.bouchinet@...p-os.org,
        Roberto Sassu <roberto.sassu@...wei.com>
Subject: Re: [PATCH v11 0/4] evm: Do HMAC of multiple per LSM xattrs for new inodes

On Sat, Jun 3, 2023 at 3:16 PM Roberto Sassu
<roberto.sassu@...weicloud.com> wrote:
>
> From: Roberto Sassu <roberto.sassu@...wei.com>
>
> One of the major goals of LSM stacking is to run multiple LSMs side by side
> without interfering with each other. The ultimate decision will depend on
> individual LSM decision.
>
> Several changes need to be made to the LSM infrastructure to be able to
> support that. This patch set tackles one of them: gives to each LSM the
> ability to specify one or multiple xattrs to be set at inode creation
> time and, at the same time, gives to EVM the ability to access all those
> xattrs and calculate the HMAC on them ...

Thanks for sticking with this Roberto, I see a few
comments/suggestions on this patchset, but overall it is looking
pretty good; I'm hopeful we will be able to merge the next revision.

-- 
paul-moore.com