Date: Fri, 26 Oct 2018 11:32:05 +0200 From: Peter Zijlstra <peterz@...radead.org> To: Igor Stoppa <igor.stoppa@...il.com> Cc: Mimi Zohar <zohar@...ux.vnet.ibm.com>, Kees Cook <keescook@...omium.org>, Matthew Wilcox <willy@...radead.org>, Dave Chinner <david@...morbit.com>, James Morris <jmorris@...ei.org>, Michal Hocko <mhocko@...nel.org>, kernel-hardening@...ts.openwall.com, linux-integrity@...r.kernel.org, linux-security-module@...r.kernel.org, igor.stoppa@...wei.com, Dave Hansen <dave.hansen@...ux.intel.com>, Jonathan Corbet <corbet@....net>, Laura Abbott <labbott@...hat.com>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Andrew Morton <akpm@...ux-foundation.org>, Masahiro Yamada <yamada.masahiro@...ionext.com>, Alexey Dobriyan <adobriyan@...il.com>, Pekka Enberg <penberg@...nel.org>, "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>, Lihao Liang <lianglihao@...wei.com>, linux-kernel@...r.kernel.org Subject: Re: [PATCH 13/17] prmem: linked list: disable layout randomization On Wed, Oct 24, 2018 at 12:35:00AM +0300, Igor Stoppa wrote: > Some of the data structures used in list management are composed by two > pointers. Since the kernel is now configured by default to randomize the > layout of data structures soleley composed by pointers, this might > prevent correct type punning between these structures and their write > rare counterpart. 'might' doesn't really work for me. Either it does or it does not.
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