From: Andrew Morton <akpm@linux-foundation.org>
To: Ilya Smith <blackzert@gmail.com>
Cc: rth@twiddle.net, ink@jurassic.park.msu.ru, mattst88@gmail.com,
vgupta@synopsys.com, linux@armlinux.org.uk, tony.luck@intel.com,
fenghua.yu@intel.com, jhogan@kernel.org, ralf@linux-mips.org,
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mhocko@suse.com, hughd@google.com, kstewart@linuxfoundation.org,
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aneesh.kumar@linux.vnet.ibm.com, npiggin@gmail.com,
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nitin.m.gupta@oracle.com, kirill.shutemov@linux.intel.com,
dan.j.williams@intel.com, jack@suse.cz,
ross.zwisler@linux.intel.com, jglisse@redhat.com,
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linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org,
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linux-metag@vger.kernel.org, linux-mips@linux-mips.org,
linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
linux-s390@vger.kernel.org, linux-sh@vger.kernel.org,
sparclinux@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [RFC PATCH v2 0/2] Randomization of address chosen by mmap.
Date: Thu, 22 Mar 2018 13:57:29 -0700 [thread overview]
Message-ID: <20180322135729.dbfd3575819c92c0f88c5c21@linux-foundation.org> (raw)
In-Reply-To: <1521736598-12812-1-git-send-email-blackzert@gmail.com>
On Thu, 22 Mar 2018 19:36:36 +0300 Ilya Smith <blackzert@gmail.com> wrote:
> Current implementation doesn't randomize address returned by mmap.
> All the entropy ends with choosing mmap_base_addr at the process
> creation. After that mmap build very predictable layout of address
> space. It allows to bypass ASLR in many cases.
Perhaps some more effort on the problem description would help. *Are*
people predicting layouts at present? What problems does this cause?
How are they doing this and are there other approaches to solving the
problem?
Mainly: what value does this patchset have to our users? This reader
is unable to determine that from the information which you have
provided. Full details, please.
next prev parent reply other threads:[~2018-03-22 20:57 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-22 16:36 [RFC PATCH v2 0/2] Randomization of address chosen by mmap Ilya Smith
2018-03-22 16:36 ` [RFC PATCH v2 1/2] " Ilya Smith
2018-03-22 20:53 ` Andrew Morton
2018-03-23 17:43 ` Ilya Smith
2018-03-22 16:36 ` [RFC PATCH v2 2/2] Architecture defined limit on memory region random shift Ilya Smith
2018-03-22 20:54 ` Andrew Morton
[not found] ` <20180323174903.QdSXClnKYU37uvlrsVCdZGgsGhUJDP04u_WTH0uOOQA@z>
2018-03-23 17:49 ` Ilya Smith
2018-03-22 20:57 ` Andrew Morton [this message]
2018-03-23 17:25 ` [RFC PATCH v2 0/2] Randomization of address chosen by mmap Ilya Smith
2018-03-23 12:48 ` Matthew Wilcox
2018-03-23 17:55 ` Ilya Smith
2018-03-26 8:46 ` Michal Hocko
2018-03-26 19:45 ` Ilya Smith
2018-03-27 7:24 ` Michal Hocko
2018-03-27 13:51 ` Ilya Smith
2018-03-27 14:38 ` Michal Hocko
2018-03-28 18:47 ` Ilya Smith
2018-03-27 22:16 ` Theodore Y. Ts'o
2018-03-27 23:58 ` Rich Felker
2018-03-28 18:48 ` Ilya Smith
2018-03-27 22:53 ` Kees Cook
2018-03-27 23:49 ` Matthew Wilcox
2018-03-27 23:57 ` Kees Cook
2018-03-28 0:00 ` Rich Felker
2018-03-28 21:07 ` Luck, Tony
2018-04-03 0:11 ` Ilya Smith
2018-03-28 21:07 ` Ilya Smith
2018-03-23 18:00 ` Rich Felker
2018-03-23 19:06 ` Matthew Wilcox
2018-03-23 19:16 ` Rich Felker
2018-03-23 19:29 ` Matthew Wilcox
2018-03-23 19:35 ` Rich Felker
2018-03-28 4:50 ` Rob Landley
2018-03-30 7:55 ` Pavel Machek
2018-03-30 9:07 ` Ilya Smith
2018-03-30 9:57 ` Pavel Machek
2018-03-30 11:10 ` Ilya Smith
2018-03-30 13:33 ` Rich Felker
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