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From: Kees Cook <keescook@chromium.org>
To: Christoph Hellwig <hch@infradead.org>
Cc: "kernel-hardening@lists.openwall.com" 
	<kernel-hardening@lists.openwall.com>,
	Laura Abbott <labbott@redhat.com>,
	"x86@kernel.org" <x86@kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Bob Moore <robert.moore@intel.com>, Lv Zheng <lv.zheng@intel.com>,
	"Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Subject: Re: [PATCH v2 11/20] randstruct: Disable randomization of ACPICA structs
Date: Sat, 27 May 2017 13:03:23 -0700	[thread overview]
Message-ID: <CAGXu5jKrha8-dU8vjr1U-hadZdaKrztXuo5iJLDXeBWHZS1ajw@mail.gmail.com> (raw)
In-Reply-To: <20170527084246.GB26844@infradead.org>

On Sat, May 27, 2017 at 1:42 AM, Christoph Hellwig <hch@infradead.org> wrote:
> On Fri, May 26, 2017 at 01:17:15PM -0700, Kees Cook wrote:
>> Since the ACPICA source is maintained externally to the kernel, we can
>> neither switch it to designated initializers nor mark it
>> __no_randomize_layout. Until ACPICA-upstream changes[1] land to handle the
>> designated initialization, explicitly skip it in the plugin.
>>
>> [1] https://github.com/acpica/acpica/pull/248
>
> I'd just overried the ACPIA bullshit process and just include these
> changes, as they are a major improvement independent of any
> reandomization.

Well... I'd rather not. It's been explicitly NAKed by them already,
which is why I sent the upstream solution (though it's being ignored
currently).

I don't want this to block randstruct any longer, so that's why I took
a whitelisting approach here.

-Kees

-- 
Kees Cook
Pixel Security

WARNING: multiple messages have this Message-ID (diff)
From: Kees Cook <keescook@chromium.org>
To: Christoph Hellwig <hch@infradead.org>
Cc: "kernel-hardening@lists.openwall.com"
	<kernel-hardening@lists.openwall.com>,
	Laura Abbott <labbott@redhat.com>,
	"x86@kernel.org" <x86@kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Bob Moore <robert.moore@intel.com>, Lv Zheng <lv.zheng@intel.com>,
	"Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Subject: [kernel-hardening] Re: [PATCH v2 11/20] randstruct: Disable randomization of ACPICA structs
Date: Sat, 27 May 2017 13:03:23 -0700	[thread overview]
Message-ID: <CAGXu5jKrha8-dU8vjr1U-hadZdaKrztXuo5iJLDXeBWHZS1ajw@mail.gmail.com> (raw)
In-Reply-To: <20170527084246.GB26844@infradead.org>

On Sat, May 27, 2017 at 1:42 AM, Christoph Hellwig <hch@infradead.org> wrote:
> On Fri, May 26, 2017 at 01:17:15PM -0700, Kees Cook wrote:
>> Since the ACPICA source is maintained externally to the kernel, we can
>> neither switch it to designated initializers nor mark it
>> __no_randomize_layout. Until ACPICA-upstream changes[1] land to handle the
>> designated initialization, explicitly skip it in the plugin.
>>
>> [1] https://github.com/acpica/acpica/pull/248
>
> I'd just overried the ACPIA bullshit process and just include these
> changes, as they are a major improvement independent of any
> reandomization.

Well... I'd rather not. It's been explicitly NAKed by them already,
which is why I sent the upstream solution (though it's being ignored
currently).

I don't want this to block randstruct any longer, so that's why I took
a whitelisting approach here.

-Kees

-- 
Kees Cook
Pixel Security

  reply	other threads:[~2017-05-27 20:03 UTC|newest]

Thread overview: 116+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-05-26 20:17 [PATCH v2 00/20] Introduce struct layout randomization plugin Kees Cook
2017-05-26 20:17 ` [kernel-hardening] " Kees Cook
2017-05-26 20:17 ` [PATCH v2 01/20] NFS: Avoid cross-structure casting Kees Cook
2017-05-26 20:17   ` [kernel-hardening] " Kees Cook
2017-05-28  7:53   ` Christoph Hellwig
2017-05-28  7:53     ` [kernel-hardening] " Christoph Hellwig
2017-05-28 16:55     ` Kees Cook
2017-05-28 16:55       ` [kernel-hardening] " Kees Cook
2017-05-26 20:17 ` [PATCH v2 02/20] gcc-plugins: Detail c-common.h location for GCC 4.6 Kees Cook
2017-05-26 20:17   ` [kernel-hardening] " Kees Cook
2017-05-26 20:17 ` [PATCH v2 03/20] compiler: Add __designated_init annotation Kees Cook
2017-05-26 20:17   ` [kernel-hardening] " Kees Cook
2017-05-26 20:17 ` [PATCH v2 04/20] gcc-plugins: Add the randstruct plugin Kees Cook
2017-05-26 20:17   ` [kernel-hardening] " Kees Cook
2017-06-29 22:08   ` Arnd Bergmann
2017-06-29 22:08     ` [kernel-hardening] " Arnd Bergmann
2017-06-29 22:53     ` Kees Cook
2017-06-29 22:53       ` [kernel-hardening] " Kees Cook
2017-06-30  0:04       ` Kees Cook
2017-06-30  0:04         ` [kernel-hardening] " Kees Cook
2017-06-30  7:35       ` Arnd Bergmann
2017-06-30  7:35         ` [kernel-hardening] " Arnd Bergmann
2017-06-30  7:55         ` Ard Biesheuvel
2017-06-30  7:55           ` [kernel-hardening] " Ard Biesheuvel
2017-06-30  8:27           ` Arnd Bergmann
2017-06-30  8:27             ` [kernel-hardening] " Arnd Bergmann
2017-06-30 14:41             ` Kees Cook
2017-06-30 14:41               ` [kernel-hardening] " Kees Cook
2017-06-30 15:22               ` Arnd Bergmann
2017-06-30 15:22                 ` [kernel-hardening] " Arnd Bergmann
2017-05-26 20:17 ` [PATCH v2 05/20] randstruct: Whitelist struct security_hook_heads cast Kees Cook
2017-05-26 20:17   ` [kernel-hardening] " Kees Cook
2017-05-27  8:41   ` Christoph Hellwig
2017-05-27  8:41     ` [kernel-hardening] " Christoph Hellwig
2017-05-27 20:09     ` Kees Cook
2017-05-27 20:09       ` [kernel-hardening] " Kees Cook
2017-05-27 20:09       ` Kees Cook
2017-05-27 22:04       ` Tetsuo Handa
2017-05-27 22:04         ` [kernel-hardening] " Tetsuo Handa
2017-05-27 22:04         ` Tetsuo Handa
2017-05-28  0:43         ` [kernel-hardening] " Kees Cook
2017-05-28  0:43           ` Kees Cook
2017-05-28  0:43           ` Kees Cook
2017-05-30 10:34       ` James Morris
2017-05-30 10:34         ` [kernel-hardening] " James Morris
2017-05-30 10:34         ` James Morris
2017-05-26 20:17 ` [PATCH v2 06/20] randstruct: Whitelist UNIXCB cast Kees Cook
2017-05-26 20:17   ` [kernel-hardening] " Kees Cook
2017-05-26 20:20   ` Kees Cook
2017-05-26 20:20     ` [kernel-hardening] " Kees Cook
2017-05-28  7:56   ` Christoph Hellwig
2017-05-28  7:56     ` [kernel-hardening] " Christoph Hellwig
2017-05-26 20:17 ` [PATCH v2 07/20] randstruct: Whitelist big_key path struct overloading Kees Cook
2017-05-26 20:17   ` [kernel-hardening] " Kees Cook
2017-05-28  8:12   ` Christoph Hellwig
2017-05-28  8:12     ` [kernel-hardening] " Christoph Hellwig
2017-05-28 16:59     ` Kees Cook
2017-05-28 16:59       ` [kernel-hardening] " Kees Cook
2017-06-19 19:24       ` Kees Cook
2017-06-19 19:24         ` [kernel-hardening] " Kees Cook
2017-09-07  7:20         ` Christoph Hellwig
2017-09-07  7:20           ` [kernel-hardening] " Christoph Hellwig
2017-09-07 22:55           ` Kees Cook
2017-09-07 22:55             ` [kernel-hardening] " Kees Cook
2017-05-26 20:17 ` [PATCH v2 08/20] randstruct: Whitelist NIU struct page overloading Kees Cook
2017-05-26 20:17   ` [kernel-hardening] " Kees Cook
2017-05-28  8:15   ` Christoph Hellwig
2017-05-28  8:15     ` [kernel-hardening] " Christoph Hellwig
2017-05-28 17:35     ` Kees Cook
2017-05-28 17:35       ` [kernel-hardening] " Kees Cook
2017-05-28 17:35       ` Kees Cook
2017-05-28 17:37     ` Kees Cook
2017-05-28 17:37       ` [kernel-hardening] " Kees Cook
2017-05-28 17:37       ` Kees Cook
2017-05-26 20:17 ` [PATCH v2 09/20] randstruct: Mark various structs for randomization Kees Cook
2017-05-26 20:17   ` [kernel-hardening] " Kees Cook
2017-05-26 20:17 ` [PATCH v2 10/20] randstruct: opt-out externally exposed function pointer structs Kees Cook
2017-05-26 20:17   ` [kernel-hardening] " Kees Cook
2017-05-26 20:17 ` [PATCH v2 11/20] randstruct: Disable randomization of ACPICA structs Kees Cook
2017-05-26 20:17   ` [kernel-hardening] " Kees Cook
2017-05-27  8:42   ` Christoph Hellwig
2017-05-27  8:42     ` [kernel-hardening] " Christoph Hellwig
2017-05-27 20:03     ` Kees Cook [this message]
2017-05-27 20:03       ` Kees Cook
2017-05-28  4:55       ` Christoph Hellwig
2017-05-28  4:55         ` [kernel-hardening] " Christoph Hellwig
2017-05-26 20:17 ` [PATCH v2 12/20] sgi-xp: Use designated initializers Kees Cook
2017-05-26 20:17   ` [kernel-hardening] " Kees Cook
2017-05-27  8:44   ` Christoph Hellwig
2017-05-27  8:44     ` [kernel-hardening] " Christoph Hellwig
2017-05-26 20:17 ` [PATCH v2 13/20] drm/amdgpu: " Kees Cook
2017-05-26 20:17   ` [kernel-hardening] " Kees Cook
2017-05-26 20:17 ` [PATCH v2 14/20] drm/amd/powerplay: " Kees Cook
2017-05-26 20:17   ` [kernel-hardening] " Kees Cook
2017-05-27  8:47   ` Christoph Hellwig
2017-05-27  8:47     ` [kernel-hardening] " Christoph Hellwig
2017-05-27 20:10     ` Kees Cook
2017-05-27 20:10       ` [kernel-hardening] " Kees Cook
2017-05-26 20:17 ` [PATCH v2 15/20] mtk-vcodec: " Kees Cook
2017-05-26 20:17   ` [kernel-hardening] " Kees Cook
2017-05-26 20:17 ` [PATCH v2 16/20] ntfs: Use ERR_CAST() to avoid cross-structure cast Kees Cook
2017-05-26 20:17   ` [kernel-hardening] " Kees Cook
2017-05-26 20:17 ` [PATCH v2 17/20] ocfs2: " Kees Cook
2017-05-26 20:17   ` [kernel-hardening] " Kees Cook
2017-05-26 20:17 ` [PATCH v2 18/20] randstruct: Enable function pointer struct detection Kees Cook
2017-05-26 20:17   ` [kernel-hardening] " Kees Cook
2017-05-26 20:17 ` [PATCH v2 19/20] [RFC] task_struct: Allow randomized layout Kees Cook
2017-05-26 20:17   ` [kernel-hardening] " Kees Cook
2017-05-26 20:23   ` Linus Torvalds
2017-05-26 20:23     ` [kernel-hardening] " Linus Torvalds
2017-05-26 20:32     ` Kees Cook
2017-05-26 20:32       ` [kernel-hardening] " Kees Cook
2017-05-26 20:17 ` [PATCH v2 20/20] ACPICA: Use designated initializers Kees Cook
2017-05-26 20:17   ` [kernel-hardening] " Kees Cook
2017-05-28  7:45   ` Christoph Hellwig
2017-05-28  7:45     ` [kernel-hardening] " Christoph Hellwig

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