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?
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WARNING: multiple messages have this Message-ID (diff)
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?
next prev parent reply other threads:[~2016-09-06 20:36 UTC|newest]
Thread overview: 37+ 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 ` 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 5:34 ` Anshuman Khandual
2016-09-06 6:11 ` kbuild test robot
2016-09-06 6:49 ` Anshuman Khandual
2016-09-06 6:49 ` Anshuman Khandual
2016-09-06 8:31 ` [PATCH V3] " Anshuman Khandual
2016-09-06 8:31 ` Anshuman Khandual
2016-09-06 9:05 ` kbuild test robot
2016-09-07 12:32 ` Anshuman Khandual
2016-09-07 12:32 ` Anshuman Khandual
2016-09-06 20:36 ` Dave Hansen [this message]
2016-09-06 20:36 ` Dave Hansen
2016-09-07 3:08 ` Kees Cook
2016-09-07 3:08 ` Kees Cook
2016-09-07 4:00 ` Anshuman Khandual
2016-09-07 4:00 ` Anshuman Khandual
2016-09-08 2:46 ` [PATCH V4] " Anshuman Khandual
2016-09-08 2:46 ` Anshuman Khandual
2016-09-08 7:44 ` kbuild test robot
2016-09-08 20:24 ` Dave Hansen
2016-09-08 20:24 ` Dave Hansen
2016-09-12 5:27 ` Anshuman Khandual
2016-09-12 5:27 ` Anshuman Khandual
2016-09-12 18:13 ` David Rientjes
2016-09-12 18:13 ` David Rientjes
2016-09-17 4:26 ` Anshuman Khandual
2016-09-17 4:26 ` Anshuman Khandual
2016-09-20 0:54 ` David Rientjes
2016-09-20 0:54 ` David Rientjes
2016-10-13 14:38 ` Anshuman Khandual
2016-10-13 14:38 ` Anshuman Khandual
2016-09-09 13:36 ` Michal Hocko
2016-09-09 13:36 ` Michal Hocko
2016-09-12 5:24 ` Anshuman Khandual
2016-09-12 5:24 ` Anshuman Khandual
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