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From: Josh Poimboeuf <jpoimboe@redhat.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Brian Gerst <brgerst@gmail.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Oleg Nesterov <oleg@redhat.com>,
	Andy Lutomirski <luto@amacapital.net>,
	Andy Lutomirski <luto@kernel.org>,
	the arch/x86 maintainers <x86@kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	"linux-arch@vger.kernel.org" <linux-arch@vger.kernel.org>,
	Borislav Petkov <bp@alien8.de>, Nadav Amit <nadav.amit@gmail.com>,
	Kees Cook <keescook@chromium.org>,
	"kernel-hardening@lists.openwall.com" 
	<kernel-hardening@lists.openwall.com>, Jann Horn <jann@thejh.net>,
	Heiko Carstens <heiko.carstens@de.ibm.com>
Subject: Re: [PATCH v3 00/13] Virtually mapped stacks with guard pages (x86, core)
Date: Fri, 24 Jun 2016 15:25:30 -0500	[thread overview]
Message-ID: <20160624202530.unmidps4kpebo2na@treble> (raw)
In-Reply-To: <CA+55aFx=wdH4v7cD2F5Kq+jwDfV5cz9qTANgOwpMTC3MY=99AQ@mail.gmail.com>

On Fri, Jun 24, 2016 at 11:11:47AM -0700, Linus Torvalds wrote:
> On Fri, Jun 24, 2016 at 10:51 AM, Linus Torvalds
> <torvalds@linux-foundation.org> wrote:
> >
> > And in particular, the init_task stack initialization initialized it
> > to the init_thread pointer. Which was definitely deadly.
> >
> > Let's see if that was it..
> 
> No, it's still broken. But it's *less* broken, so here's a new version
> of the patch that at least gets some of the stack setup right, in my
> hope that somebody will bother to look at this, and being less broken
> might mean that somebody sees what else I missed..

I found at least one bug.  The changing of task->stack from a "void *" to an
"unsigned long *":

> -	void *stack;
> +	unsigned long *stack;

That subtly changes the pointer arithmetic in do_boot_cpu():


	idle->thread.sp = (unsigned long) (((struct pt_regs *)
			  (THREAD_SIZE +  task_stack_page(idle))) - 1);


That ends up adding 128k to the stack page bottom instead of 16k.

But fixing that doesn't seem to fix this:

[18446743832.576241] ------------[ cut here ]------------
[18446743832.576241] WARNING: CPU: 1 PID: 0 at /home/jpoimboe/git/linux/arch/x86/kernel/cpu/common.c:1434 cpu_init+0x34b/0x440
[18446743832.576241] Modules linked in:
[18446743832.576241] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.7.0-rc4+ #47
[18446743832.576241] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.8.1-20150318_183358- 04/01/2014
[18446743832.576241]  0000000000000086 574e5e6c6855ace9 ffff88007c553e88 ffffffff8143cb83
[18446743832.576241]  0000000000000000 0000000000000000 ffff88007c553ec8 ffffffff810b0e7b
[18446743832.576241]  0000059a00000000 0000000000000000 0000000000000000 0000000000000000
[18446743832.576241] Call Trace:
[18446743832.576241]  [<ffffffff8143cb83>] dump_stack+0x85/0xc2
[18446743832.576241]  [<ffffffff810b0e7b>] __warn+0xcb/0xf0
[18446743832.576241]  [<ffffffff810b0fad>] warn_slowpath_null+0x1d/0x20
[18446743832.576241]  [<ffffffff810491bb>] cpu_init+0x34b/0x440
[18446743832.576241]  [<ffffffff8105ab7c>] start_secondary+0x1c/0x1a0
[18446743832.576241] ---[ end trace 924d57afbaca0720 ]---

So there's at least another bug lurking..

-- 
Josh

WARNING: multiple messages have this Message-ID (diff)
From: Josh Poimboeuf <jpoimboe@redhat.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Brian Gerst <brgerst@gmail.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Oleg Nesterov <oleg@redhat.com>,
	Andy Lutomirski <luto@amacapital.net>,
	Andy Lutomirski <luto@kernel.org>,
	the arch/x86 maintainers <x86@kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	"linux-arch@vger.kernel.org" <linux-arch@vger.kernel.org>,
	Borislav Petkov <bp@alien8.de>, Nadav Amit <nadav.amit@gmail.com>,
	Kees Cook <keescook@chromium.org>,
	"kernel-hardening@lists.openwall.com"
	<kernel-hardening@lists.openwall.com>, Jann Horn <jann@thejh.net>,
	Heiko Carstens <heiko.carstens@de.ibm.com>
Subject: [kernel-hardening] Re: [PATCH v3 00/13] Virtually mapped stacks with guard pages (x86, core)
Date: Fri, 24 Jun 2016 15:25:30 -0500	[thread overview]
Message-ID: <20160624202530.unmidps4kpebo2na@treble> (raw)
In-Reply-To: <CA+55aFx=wdH4v7cD2F5Kq+jwDfV5cz9qTANgOwpMTC3MY=99AQ@mail.gmail.com>

On Fri, Jun 24, 2016 at 11:11:47AM -0700, Linus Torvalds wrote:
> On Fri, Jun 24, 2016 at 10:51 AM, Linus Torvalds
> <torvalds@linux-foundation.org> wrote:
> >
> > And in particular, the init_task stack initialization initialized it
> > to the init_thread pointer. Which was definitely deadly.
> >
> > Let's see if that was it..
> 
> No, it's still broken. But it's *less* broken, so here's a new version
> of the patch that at least gets some of the stack setup right, in my
> hope that somebody will bother to look at this, and being less broken
> might mean that somebody sees what else I missed..

I found at least one bug.  The changing of task->stack from a "void *" to an
"unsigned long *":

> -	void *stack;
> +	unsigned long *stack;

That subtly changes the pointer arithmetic in do_boot_cpu():


	idle->thread.sp = (unsigned long) (((struct pt_regs *)
			  (THREAD_SIZE +  task_stack_page(idle))) - 1);


That ends up adding 128k to the stack page bottom instead of 16k.

But fixing that doesn't seem to fix this:

[18446743832.576241] ------------[ cut here ]------------
[18446743832.576241] WARNING: CPU: 1 PID: 0 at /home/jpoimboe/git/linux/arch/x86/kernel/cpu/common.c:1434 cpu_init+0x34b/0x440
[18446743832.576241] Modules linked in:
[18446743832.576241] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.7.0-rc4+ #47
[18446743832.576241] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.8.1-20150318_183358- 04/01/2014
[18446743832.576241]  0000000000000086 574e5e6c6855ace9 ffff88007c553e88 ffffffff8143cb83
[18446743832.576241]  0000000000000000 0000000000000000 ffff88007c553ec8 ffffffff810b0e7b
[18446743832.576241]  0000059a00000000 0000000000000000 0000000000000000 0000000000000000
[18446743832.576241] Call Trace:
[18446743832.576241]  [<ffffffff8143cb83>] dump_stack+0x85/0xc2
[18446743832.576241]  [<ffffffff810b0e7b>] __warn+0xcb/0xf0
[18446743832.576241]  [<ffffffff810b0fad>] warn_slowpath_null+0x1d/0x20
[18446743832.576241]  [<ffffffff810491bb>] cpu_init+0x34b/0x440
[18446743832.576241]  [<ffffffff8105ab7c>] start_secondary+0x1c/0x1a0
[18446743832.576241] ---[ end trace 924d57afbaca0720 ]---

So there's at least another bug lurking..

-- 
Josh

  reply	other threads:[~2016-06-24 21:06 UTC|newest]

Thread overview: 269+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-20 23:43 [PATCH v3 00/13] Virtually mapped stacks with guard pages (x86, core) Andy Lutomirski
2016-06-20 23:43 ` [kernel-hardening] " Andy Lutomirski
2016-06-20 23:43 ` Andy Lutomirski
2016-06-20 23:43 ` [PATCH v3 01/13] x86/mm/hotplug: Don't remove PGD entries in remove_pagetable() Andy Lutomirski
2016-06-20 23:43   ` [kernel-hardening] " Andy Lutomirski
2016-06-20 23:43   ` Andy Lutomirski
2016-06-20 23:43   ` Andy Lutomirski
2016-06-20 23:43 ` [PATCH v3 02/13] x86/cpa: In populate_pgd, don't set the pgd entry until it's populated Andy Lutomirski
2016-06-20 23:43   ` [kernel-hardening] " Andy Lutomirski
2016-06-20 23:43   ` Andy Lutomirski
2016-06-20 23:43 ` [PATCH v3 03/13] x86/mm: Remove kernel_unmap_pages_in_pgd() and efi_cleanup_page_tables() Andy Lutomirski
2016-06-20 23:43   ` [kernel-hardening] " Andy Lutomirski
2016-06-20 23:43   ` Andy Lutomirski
2016-06-21  9:53   ` Matt Fleming
2016-06-21  9:53     ` [kernel-hardening] " Matt Fleming
2016-06-21  9:53     ` Matt Fleming
2016-06-20 23:43 ` [PATCH v3 04/13] mm: Track NR_KERNEL_STACK in KiB instead of number of stacks Andy Lutomirski
2016-06-20 23:43   ` [kernel-hardening] " Andy Lutomirski
2016-06-20 23:43   ` Andy Lutomirski
2016-06-20 23:43   ` Andy Lutomirski
2016-06-21  9:46   ` Vladimir Davydov
2016-06-21  9:46     ` [kernel-hardening] " Vladimir Davydov
2016-06-21  9:46     ` Vladimir Davydov
2016-06-21  9:46     ` Vladimir Davydov
2016-06-22  7:35   ` Michal Hocko
2016-06-22  7:35     ` [kernel-hardening] " Michal Hocko
2016-06-22  7:35     ` Michal Hocko
2016-06-22  7:35     ` Michal Hocko
2016-06-20 23:43 ` [PATCH v3 05/13] mm: Fix memcg stack accounting for sub-page stacks Andy Lutomirski
2016-06-20 23:43   ` [kernel-hardening] " Andy Lutomirski
2016-06-20 23:43   ` Andy Lutomirski
2016-06-20 23:43   ` Andy Lutomirski
2016-06-21  9:54   ` Vladimir Davydov
2016-06-21  9:54     ` [kernel-hardening] " Vladimir Davydov
2016-06-21  9:54     ` Vladimir Davydov
2016-06-21  9:54     ` Vladimir Davydov
2016-06-22  7:38   ` Michal Hocko
2016-06-22  7:38     ` [kernel-hardening] " Michal Hocko
2016-06-22  7:38     ` Michal Hocko
2016-06-22  7:38     ` Michal Hocko
2016-06-20 23:43 ` [PATCH v3 06/13] fork: Add generic vmalloced stack support Andy Lutomirski
2016-06-20 23:43   ` [kernel-hardening] " Andy Lutomirski
2016-06-20 23:43   ` Andy Lutomirski
2016-06-21  7:30   ` Jann Horn
2016-06-21  7:30     ` [kernel-hardening] " Jann Horn
2016-06-21  7:30     ` Jann Horn
2016-06-21 16:59     ` Andy Lutomirski
2016-06-21 16:59       ` [kernel-hardening] " Andy Lutomirski
2016-06-21 16:59       ` Andy Lutomirski
2016-06-21 17:13       ` Kees Cook
2016-06-21 17:13         ` [kernel-hardening] " Kees Cook
2016-06-21 17:13         ` Kees Cook
2016-06-21 17:28         ` Andy Lutomirski
2016-06-21 17:28           ` [kernel-hardening] " Andy Lutomirski
2016-06-21 17:28           ` Andy Lutomirski
2016-06-21 18:32         ` [kernel-hardening] " Rik van Riel
2016-06-21 18:32           ` Rik van Riel
2016-06-21 19:44           ` [kernel-hardening] " Arnd Bergmann
2016-06-21 19:44             ` Arnd Bergmann
2016-06-21 19:43             ` [kernel-hardening] " Andy Lutomirski
2016-06-21 19:43               ` Andy Lutomirski
2016-06-21 19:43               ` Andy Lutomirski
2016-07-11 17:00           ` [kernel-hardening] " Andrey Ryabinin
2016-06-20 23:43 ` [PATCH v3 07/13] x86/die: Don't try to recover from an OOPS on a non-default stack Andy Lutomirski
2016-06-20 23:43   ` [kernel-hardening] " Andy Lutomirski
2016-06-20 23:43   ` Andy Lutomirski
2016-06-20 23:43 ` [PATCH v3 08/13] x86/dumpstack: When OOPSing, rewind the stack before do_exit Andy Lutomirski
2016-06-20 23:43   ` [kernel-hardening] " Andy Lutomirski
2016-06-20 23:43   ` Andy Lutomirski
2016-06-20 23:43 ` [PATCH v3 09/13] x86/dumpstack: When dumping stack bytes due to OOPS, start with regs->sp Andy Lutomirski
2016-06-20 23:43   ` [kernel-hardening] " Andy Lutomirski
2016-06-20 23:43   ` Andy Lutomirski
2016-06-20 23:43 ` [PATCH v3 10/13] x86/dumpstack: Try harder to get a call trace on stack overflow Andy Lutomirski
2016-06-20 23:43   ` [kernel-hardening] " Andy Lutomirski
2016-06-20 23:43   ` Andy Lutomirski
2016-06-20 23:43 ` [PATCH v3 11/13] x86/dumpstack/64: Handle faults when printing the "Stack:" part of an OOPS Andy Lutomirski
2016-06-20 23:43   ` [kernel-hardening] " Andy Lutomirski
2016-06-20 23:43   ` Andy Lutomirski
2016-06-20 23:43 ` [PATCH v3 12/13] x86/mm/64: Enable vmapped stacks Andy Lutomirski
2016-06-20 23:43   ` [kernel-hardening] " Andy Lutomirski
2016-06-20 23:43   ` Andy Lutomirski
2016-06-20 23:43 ` [PATCH v3 13/13] x86/mm: Improve stack-overflow #PF handling Andy Lutomirski
2016-06-20 23:43   ` [kernel-hardening] " Andy Lutomirski
2016-06-20 23:43   ` Andy Lutomirski
2016-06-21  4:01 ` [PATCH v3 00/13] Virtually mapped stacks with guard pages (x86, core) Linus Torvalds
2016-06-21  4:01   ` [kernel-hardening] " Linus Torvalds
2016-06-21  4:01   ` Linus Torvalds
2016-06-21 16:45   ` Andy Lutomirski
2016-06-21 16:45     ` [kernel-hardening] " Andy Lutomirski
2016-06-21 16:45     ` Andy Lutomirski
2016-06-21 17:16     ` Linus Torvalds
2016-06-21 17:16       ` [kernel-hardening] " Linus Torvalds
2016-06-21 17:16       ` Linus Torvalds
2016-06-21 17:27       ` Andy Lutomirski
2016-06-21 17:27         ` [kernel-hardening] " Andy Lutomirski
2016-06-21 17:27         ` Andy Lutomirski
2016-06-21 18:12         ` Kees Cook
2016-06-21 18:12           ` [kernel-hardening] " Kees Cook
2016-06-21 18:12           ` Kees Cook
2016-06-21 18:19           ` [kernel-hardening] " Rik van Riel
2016-06-21 18:19             ` Rik van Riel
2016-06-23  1:22   ` Andy Lutomirski
2016-06-23  1:22     ` [kernel-hardening] " Andy Lutomirski
2016-06-23  1:22     ` Andy Lutomirski
2016-06-23  6:02     ` Linus Torvalds
2016-06-23  6:02       ` [kernel-hardening] " Linus Torvalds
2016-06-23  6:02       ` Linus Torvalds
2016-06-23 14:31       ` Oleg Nesterov
2016-06-23 14:31         ` [kernel-hardening] " Oleg Nesterov
2016-06-23 14:31         ` Oleg Nesterov
2016-06-23 16:30         ` Linus Torvalds
2016-06-23 16:30           ` [kernel-hardening] " Linus Torvalds
2016-06-23 16:30           ` Linus Torvalds
2016-06-23 16:41           ` Andy Lutomirski
2016-06-23 16:41             ` [kernel-hardening] " Andy Lutomirski
2016-06-23 16:41             ` Andy Lutomirski
2016-06-23 17:10             ` Oleg Nesterov
2016-06-23 17:10               ` [kernel-hardening] " Oleg Nesterov
2016-06-23 17:10               ` Oleg Nesterov
2016-09-06 16:19             ` Jann Horn
2016-09-06 16:19               ` [kernel-hardening] " Jann Horn
2016-09-06 16:19               ` Jann Horn
2016-09-06 16:40               ` Andy Lutomirski
2016-09-06 16:40                 ` [kernel-hardening] " Andy Lutomirski
2016-09-06 16:40                 ` Andy Lutomirski
2016-06-23 17:03           ` Oleg Nesterov
2016-06-23 17:03             ` [kernel-hardening] " Oleg Nesterov
2016-06-23 17:03             ` Oleg Nesterov
2016-06-23 17:44             ` Linus Torvalds
2016-06-23 17:44               ` [kernel-hardening] " Linus Torvalds
2016-06-23 17:44               ` Linus Torvalds
2016-06-23 17:52               ` Linus Torvalds
2016-06-23 17:52                 ` [kernel-hardening] " Linus Torvalds
2016-06-23 17:52                 ` Linus Torvalds
2016-06-23 18:00                 ` Kees Cook
2016-06-23 18:00                   ` [kernel-hardening] " Kees Cook
2016-06-23 18:00                   ` Kees Cook
2016-06-23 18:54                   ` Peter Zijlstra
2016-06-23 18:54                     ` [kernel-hardening] " Peter Zijlstra
2016-06-23 18:54                     ` Peter Zijlstra
2016-06-23 18:12                 ` Oleg Nesterov
2016-06-23 18:12                   ` [kernel-hardening] " Oleg Nesterov
2016-06-23 18:12                   ` Oleg Nesterov
2016-06-23 18:55                   ` Peter Zijlstra
2016-06-23 18:55                     ` [kernel-hardening] " Peter Zijlstra
2016-06-23 18:55                     ` Peter Zijlstra
2016-06-23 18:46                 ` Linus Torvalds
2016-06-23 18:46                   ` [kernel-hardening] " Linus Torvalds
2016-06-23 18:46                   ` Linus Torvalds
2016-06-23 19:08                   ` Andy Lutomirski
2016-06-23 19:08                     ` [kernel-hardening] " Andy Lutomirski
2016-06-23 19:08                     ` Andy Lutomirski
2016-06-23 18:53                 ` Peter Zijlstra
2016-06-23 18:53                   ` [kernel-hardening] " Peter Zijlstra
2016-06-23 18:53                   ` Peter Zijlstra
2016-06-23 19:09                   ` Andy Lutomirski
2016-06-23 19:09                     ` [kernel-hardening] " Andy Lutomirski
2016-06-23 19:09                     ` Andy Lutomirski
2016-06-23 19:13                     ` Peter Zijlstra
2016-06-23 19:13                       ` [kernel-hardening] " Peter Zijlstra
2016-06-23 19:13                       ` Peter Zijlstra
2016-06-23 19:17                   ` Linus Torvalds
2016-06-23 19:17                     ` [kernel-hardening] " Linus Torvalds
2016-06-23 19:17                     ` Linus Torvalds
2016-06-24  6:17                     ` Linus Torvalds
2016-06-24  6:17                       ` [kernel-hardening] " Linus Torvalds
2016-06-24  6:17                       ` Linus Torvalds
2016-06-24 12:25                       ` Brian Gerst
2016-06-24 12:25                         ` [kernel-hardening] " Brian Gerst
2016-06-24 12:25                         ` Brian Gerst
2016-06-24 17:21                         ` Linus Torvalds
2016-06-24 17:21                           ` [kernel-hardening] " Linus Torvalds
2016-06-24 17:21                           ` Linus Torvalds
2016-06-24 17:40                           ` Linus Torvalds
2016-06-24 17:40                             ` [kernel-hardening] " Linus Torvalds
2016-06-24 17:40                             ` Linus Torvalds
2016-06-24 17:47                             ` Andy Lutomirski
2016-06-24 17:47                               ` [kernel-hardening] " Andy Lutomirski
2016-06-24 17:47                               ` Andy Lutomirski
2016-06-24 17:56                               ` Linus Torvalds
2016-06-24 17:56                                 ` [kernel-hardening] " Linus Torvalds
2016-06-24 17:56                                 ` Linus Torvalds
2016-06-24 18:36                                 ` Andy Lutomirski
2016-06-24 18:36                                   ` [kernel-hardening] " Andy Lutomirski
2016-06-24 18:36                                   ` Andy Lutomirski
2016-06-24 17:51                             ` Linus Torvalds
2016-06-24 17:51                               ` [kernel-hardening] " Linus Torvalds
2016-06-24 17:51                               ` Linus Torvalds
2016-06-24 18:11                               ` Linus Torvalds
2016-06-24 18:11                                 ` [kernel-hardening] " Linus Torvalds
2016-06-24 18:11                                 ` Linus Torvalds
2016-06-24 20:25                                 ` Josh Poimboeuf [this message]
2016-06-24 20:25                                   ` [kernel-hardening] " Josh Poimboeuf
2016-06-24 20:25                                   ` Josh Poimboeuf
2016-06-24 20:51                                   ` Josh Poimboeuf
2016-06-24 20:51                                     ` [kernel-hardening] " Josh Poimboeuf
2016-06-24 20:51                                     ` Josh Poimboeuf
2016-06-24 20:53                                     ` Andy Lutomirski
2016-06-24 20:53                                       ` [kernel-hardening] " Andy Lutomirski
2016-06-24 20:53                                       ` Andy Lutomirski
2016-06-24 21:06                                     ` Linus Torvalds
2016-06-24 21:06                                       ` [kernel-hardening] " Linus Torvalds
2016-06-24 21:06                                       ` Linus Torvalds
2016-06-24 21:25                                       ` Andy Lutomirski
2016-06-24 21:25                                         ` [kernel-hardening] " Andy Lutomirski
2016-06-24 21:25                                         ` Andy Lutomirski
2016-06-24 21:32                                         ` Linus Torvalds
2016-06-24 21:32                                           ` [kernel-hardening] " Linus Torvalds
2016-06-24 21:32                                           ` Linus Torvalds
2016-06-24 21:34                                           ` Andy Lutomirski
2016-06-24 21:34                                             ` [kernel-hardening] " Andy Lutomirski
2016-06-24 21:34                                             ` Andy Lutomirski
2016-06-25  2:41                                             ` Linus Torvalds
2016-06-25  2:41                                               ` [kernel-hardening] " Linus Torvalds
2016-06-25  2:41                                               ` Linus Torvalds
2016-06-25 23:19                                               ` Andy Lutomirski
2016-06-25 23:19                                                 ` [kernel-hardening] " Andy Lutomirski
2016-06-25 23:19                                                 ` Andy Lutomirski
2016-06-25 23:30                                                 ` Andy Lutomirski
2016-06-25 23:30                                                   ` [kernel-hardening] " Andy Lutomirski
2016-06-25 23:30                                                   ` Andy Lutomirski
2016-06-26  1:23                                                   ` Linus Torvalds
2016-06-26  1:23                                                     ` [kernel-hardening] " Linus Torvalds
2016-06-26  1:23                                                     ` Linus Torvalds
2016-06-23 18:52               ` Oleg Nesterov
2016-06-23 18:52                 ` [kernel-hardening] " Oleg Nesterov
2016-06-23 18:52                 ` Oleg Nesterov
2016-06-24 14:05                 ` Michal Hocko
2016-06-24 14:05                   ` [kernel-hardening] " Michal Hocko
2016-06-24 14:05                   ` Michal Hocko
2016-06-24 15:06                   ` Michal Hocko
2016-06-24 15:06                     ` [kernel-hardening] " Michal Hocko
2016-06-24 15:06                     ` Michal Hocko
2016-06-24 15:06                     ` Michal Hocko
2016-06-24 20:22                     ` Oleg Nesterov
2016-06-24 20:22                       ` [kernel-hardening] " Oleg Nesterov
2016-06-24 20:22                       ` Oleg Nesterov
2016-06-27 10:36                       ` Michal Hocko
2016-06-27 10:36                         ` [kernel-hardening] " Michal Hocko
2016-06-27 10:36                         ` Michal Hocko
2016-06-23 19:11         ` Peter Zijlstra
2016-06-23 19:11           ` [kernel-hardening] " Peter Zijlstra
2016-06-23 19:11           ` Peter Zijlstra
2016-06-23 19:34           ` Linus Torvalds
2016-06-23 19:34             ` [kernel-hardening] " Linus Torvalds
2016-06-23 19:34             ` Linus Torvalds
2016-06-23 19:46             ` Peter Zijlstra
2016-06-23 19:46               ` [kernel-hardening] " Peter Zijlstra
2016-06-23 19:46               ` Peter Zijlstra
2016-06-21  9:24 ` Arnd Bergmann
2016-06-21  9:24   ` [kernel-hardening] " Arnd Bergmann
2016-06-21  9:24   ` Arnd Bergmann
2016-06-21 17:16   ` Kees Cook
2016-06-21 17:16     ` [kernel-hardening] " Kees Cook
2016-06-21 17:16     ` Kees Cook
2016-06-21 18:02     ` [kernel-hardening] " Rik van Riel
2016-06-21 18:02       ` Rik van Riel
2016-06-21 18:05       ` [kernel-hardening] " Andy Lutomirski
2016-06-21 18:05         ` Andy Lutomirski
2016-06-21 18:05         ` Andy Lutomirski
2016-06-21 19:47     ` Arnd Bergmann
2016-06-21 19:47       ` [kernel-hardening] " Arnd Bergmann
2016-06-21 19:47       ` Arnd Bergmann
2016-06-21 19:47       ` Andy Lutomirski
2016-06-21 19:47         ` [kernel-hardening] " Andy Lutomirski
2016-06-21 19:47         ` Andy Lutomirski
2016-06-21 20:18         ` Kees Cook
2016-06-21 20:18           ` [kernel-hardening] " Kees Cook
2016-06-21 20:18           ` Kees Cook

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