From: Christoph Hellwig <hch@infradead.org>
To: Igor Stoppa <igor.stoppa@huawei.com>
Cc: keescook@chromium.org, mhocko@kernel.org, jmorris@namei.org,
penguin-kernel@I-love.SAKURA.ne.jp, paul@paul-moore.com,
sds@tycho.nsa.gov, casey@schaufler-ca.com, hch@infradead.org,
labbott@redhat.com, linux-security-module@vger.kernel.org,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
kernel-hardening@lists.openwall.com,
Igor Stoppa <igor.stoppa@gmail.com>
Subject: Re: [PATCH 3/3] Make LSM Writable Hooks a command line option
Date: Tue, 27 Jun 2017 10:51:18 -0700 [thread overview]
Message-ID: <20170627175118.GA14286@infradead.org> (raw)
In-Reply-To: <20170627173323.11287-4-igor.stoppa@huawei.com>
On Tue, Jun 27, 2017 at 08:33:23PM +0300, Igor Stoppa wrote:
> From: Igor Stoppa <igor.stoppa@gmail.com>
>
> This patch shows how it is possible to take advantage of pmalloc:
> instead of using the build-time option __lsm_ro_after_init, to decide if
> it is possible to keep the hooks modifiable, now this becomes a
> boot-time decision, based on the kernel command line.
>
> This patch relies on:
>
> "Convert security_hook_heads into explicit array of struct list_head"
> Author: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
>
> to break free from the static constraint imposed by the previous
> hardening model, based on __ro_after_init.
>
> The default value is disabled, unless SE Linux debugging is turned on.
Can we please just force it to be read-only?
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next prev parent reply other threads:[~2017-06-27 17:51 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-27 17:33 [PATCH v8 0/3] mm: LSM: ro protection for dynamic data Igor Stoppa
2017-06-27 17:33 ` [PATCH 1/3] Protectable memory support Igor Stoppa
2017-06-27 17:33 ` [PATCH 2/3] LSM: Convert security_hook_heads into explicit array of struct list_head Igor Stoppa
2017-06-27 17:33 ` [PATCH 3/3] Make LSM Writable Hooks a command line option Igor Stoppa
2017-06-27 17:51 ` Christoph Hellwig [this message]
2017-06-27 20:07 ` igor.stoppa
2017-06-28 8:25 ` Igor Stoppa
-- strict thread matches above, loose matches on Subject: below --
2017-07-10 15:06 [PATCH v10 0/3] mm: security: ro protection for dynamic data Igor Stoppa
2017-07-10 15:06 ` [PATCH 3/3] Make LSM Writable Hooks a command line option Igor Stoppa
2017-07-11 4:12 ` kbuild test robot
2017-07-05 13:46 [PATCH v9 0/3] mm: security: ro protection for dynamic data Igor Stoppa
2017-07-05 13:46 ` [PATCH 3/3] Make LSM Writable Hooks a command line option Igor Stoppa
2017-06-26 14:41 [PATCH v7 0/3] ro protection for dynamic data Igor Stoppa
2017-06-26 14:41 ` [PATCH 3/3] Make LSM Writable Hooks a command line option Igor Stoppa
2017-06-27 5:07 ` kbuild test robot
2017-06-27 6:48 ` kbuild test robot
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