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From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
To: igor.stoppa@huawei.com, casey@schaufler-ca.com,
	keescook@chromium.org, mhocko@kernel.org, jmorris@namei.org
Cc: paul@paul-moore.com, sds@tycho.nsa.gov, hch@infradead.org,
	labbott@redhat.com, linux-mm@kvack.org,
	linux-kernel@vger.kernel.org,
	kernel-hardening@lists.openwall.com
Subject: Re: [PATCH 4/5] Make LSM Writable Hooks a command line option
Date: Tue, 6 Jun 2017 23:36:07 +0900	[thread overview]
Message-ID: <201706062336.CFE35913.OFFLQOHMtSJFVO@I-love.SAKURA.ne.jp> (raw)
In-Reply-To: <4c3e3b8b-6507-7da5-1537-1e0ce04fcba5@huawei.com>

Igor Stoppa wrote:
> For the case at hand, would it work if there was a non-API call that you
> could use until the API is properly expanded?

Kernel command line switching (i.e. this patch) is fine for my use cases.

SELinux folks might want

-static int security_debug;
+static int security_debug = IS_ENABLED(CONFIG_SECURITY_SELINUX_DISABLE);

so that those who are using SELINUX=disabled in /etc/selinux/config won't
get oops upon boot by default. If "unlock the pool" were available,
SELINUX=enforcing users would be happy. Maybe two modes for rw/ro transition helps.

  oneway rw -> ro transition mode: can't be made rw again by calling "unlock the pool" API
  twoway rw <-> ro transition mode: can be made rw again by calling "unlock the pool" API

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  reply	other threads:[~2017-06-06 14:38 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-05 19:22 Igor Stoppa
2017-06-05 19:22 ` [PATCH 1/5] LSM: Convert security_hook_heads into explicit array of struct list_head Igor Stoppa
2017-06-05 19:22 ` [PATCH 2/5] Protectable Memory Allocator Igor Stoppa
2017-06-06  4:44   ` Tetsuo Handa
2017-06-06  6:25     ` Christoph Hellwig
2017-06-06 11:34       ` Igor Stoppa
2017-06-06 16:24         ` Laura Abbott
2017-06-06 11:42     ` Igor Stoppa
2017-06-06 12:08       ` Tetsuo Handa
2017-06-06 12:23         ` Igor Stoppa
2017-06-05 19:22 ` [PATCH 3/5] Protectable Memory Allocator - Debug interface Igor Stoppa
2017-06-05 20:24   ` [kernel-hardening] " Jann Horn
2017-06-06  9:00     ` Igor Stoppa
2017-06-05 19:22 ` [PATCH 4/5] Make LSM Writable Hooks a command line option Igor Stoppa
2017-06-05 19:53   ` Casey Schaufler
2017-06-05 20:50     ` Tetsuo Handa
2017-06-06  8:58       ` Igor Stoppa
2017-06-06 10:54         ` Tetsuo Handa
2017-06-06 11:12           ` Igor Stoppa
2017-06-06 11:42             ` Tetsuo Handa
2017-06-06 12:11               ` Igor Stoppa
2017-06-06 14:36                 ` Tetsuo Handa [this message]
2017-06-06 14:51                   ` Igor Stoppa
2017-06-06 15:17                     ` Casey Schaufler

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