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(dmkd798g-7z2-yccwcp-4.rev.dnainternet.fi. [2001:14bb:52:7be:f0bf:dd2d:f008:5213]) by smtp.gmail.com with ESMTPSA id m13-v6sm22426ljg.56.2018.10.29.12.40.28 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 29 Oct 2018 12:40:29 -0700 (PDT) Subject: Re: [PATCH 13/17] prmem: linked list: disable layout randomization To: Alexey Dobriyan Cc: Mimi Zohar , Kees Cook , Matthew Wilcox , Dave Chinner , James Morris , Michal Hocko , kernel-hardening@lists.openwall.com, linux-integrity@vger.kernel.org, linux-security-module@vger.kernel.org, igor.stoppa@huawei.com, Dave Hansen , Jonathan Corbet , Laura Abbott , Greg Kroah-Hartman , Andrew Morton , Masahiro Yamada , Pekka Enberg , "Paul E. McKenney" , Lihao Liang , linux-kernel@vger.kernel.org References: <20181023213504.28905-1-igor.stoppa@huawei.com> <20181023213504.28905-14-igor.stoppa@huawei.com> <20181024134343.GA7767@avx2> From: Igor Stoppa Message-ID: <47d5706b-12b9-a94f-d668-8e9a659e33d0@gmail.com> Date: Mon, 29 Oct 2018 21:40:27 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 MIME-Version: 1.0 In-Reply-To: <20181024134343.GA7767@avx2> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: owner-linux-security-module@vger.kernel.org Precedence: bulk List-ID: On 24/10/2018 14:43, Alexey Dobriyan wrote: > 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, > > Isn't this true for function pointers? Yes, you are right. Thanks for pointing this out. I can drop this patch. -- igor