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From: Dave Hansen <dave.hansen@intel.com>
To: Anshuman Khandual <khandual@linux.vnet.ibm.com>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org
Cc: akpm@linux-foundation.org, Kees Cook <kees@outflux.net>
Subject: Re: [PATCH V3] mm: Add sysfs interface to dump each node's zonelist information
Date: Tue, 6 Sep 2016 13:36:21 -0700	[thread overview]
Message-ID: <57CF28C5.3090006@intel.com> (raw)
In-Reply-To: <1473150666-3875-1-git-send-email-khandual@linux.vnet.ibm.com>

On 09/06/2016 01:31 AM, Anshuman Khandual wrote:
> [NODE (0)]
>         ZONELIST_FALLBACK
>         (0) (node 0) (zone DMA c00000000140c000)
>         (1) (node 1) (zone DMA c000000100000000)
>         (2) (node 2) (zone DMA c000000200000000)
>         (3) (node 3) (zone DMA c000000300000000)
>         ZONELIST_NOFALLBACK
>         (0) (node 0) (zone DMA c00000000140c000)

Don't we have some prohibition on dumping out kernel addresses like this
so that attackers can't trivially defeat kernel layout randomization?

  parent reply	other threads:[~2016-09-06 20:36 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-06  5:34 [PATCH V2 1/2] mm: Export definition of 'zone_names' array through mmzone.h Anshuman Khandual
2016-09-06  5:34 ` [PATCH V2 2/2] mm: Add sysfs interface to dump each node's zonelist information Anshuman Khandual
2016-09-06  6:11   ` kbuild test robot
2016-09-06  6:49     ` Anshuman Khandual
2016-09-06  8:31   ` [PATCH V3] " Anshuman Khandual
2016-09-06  9:05     ` kbuild test robot
2016-09-07 12:32       ` Anshuman Khandual
2016-09-06 20:36     ` Dave Hansen [this message]
2016-09-07  3:08       ` Kees Cook
2016-09-07  4:00         ` Anshuman Khandual
2016-09-08  2:46     ` [PATCH V4] " Anshuman Khandual
2016-09-08  7:44       ` kbuild test robot
2016-09-08 20:24       ` Dave Hansen
2016-09-12  5:27         ` Anshuman Khandual
2016-09-12 18:13           ` David Rientjes
2016-09-17  4:26             ` Anshuman Khandual
2016-09-20  0:54               ` David Rientjes
2016-10-13 14:38                 ` Anshuman Khandual
2016-09-09 13:36       ` Michal Hocko
2016-09-12  5:24         ` Anshuman Khandual

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