Re: [PATCH v2 1/2] mm: mmap: Add new /proc tunable for mmap_base ASLR.

From: Daniel Cashman
Date: Wed Nov 04 2015 - 14:36:19 EST

On 11/4/15 11:21 AM, Eric W. Biederman wrote:
> Michal Hocko <mhocko@xxxxxxxxxx> writes:
>> On Tue 03-11-15 10:10:03, Daniel Cashman wrote:
>> [...]
>>> +This value can be changed after boot using the
>>> +/proc/sys/kernel/mmap_rnd_bits tunable
>> Why is this not sitting in /proc/sys/vm/ where we already have
>> mmap_min_addr. These two sound like they should sit together, no?
> Ugh. Yes. Moving that file before it becomes part of the ABI sounds
> like a good idea. Daniel when you get around to v3 please move the
> file.

To answer the first question: it was put there because that's where
randomize_va_space is located, which seemed to me to be the
most-related/similar option. That being said, moving it under vm works
too. Will change for patch-set 3.

Thank You,

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