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Re: [kernel-hardening] [RFC v1] mm: SLAB freelist randomization

From Thomas Garnier <thgarnie@google.com>
Newsgroups linux.kernel
Subject Re: [kernel-hardening] [RFC v1] mm: SLAB freelist randomization
Date 2016-04-06 23:10 +0200
Message-ID <rl2S5-1tt-1@gated-at.bofh.it> (permalink)
References <rl1t0-n7-21@gated-at.bofh.it> <rl2Iq-1a7-17@gated-at.bofh.it>
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Yes, sorry about that. It will be in the next RFC or PATCH.

On Wed, Apr 6, 2016 at 1:54 PM, Greg KH <gregkh@linuxfoundation.org> wrote:
> On Wed, Apr 06, 2016 at 12:35:48PM -0700, Thomas Garnier wrote:
>> Provide an optional config (CONFIG_FREELIST_RANDOM) to randomize the
>> SLAB freelist. This security feature reduces the predictability of
>> the kernel slab allocator against heap overflows.
>>
>> Randomized lists are pre-computed using a Fisher-Yates shuffle and
>> re-used on slab creation for performance.
>> ---
>> Based on next-20160405
>> ---
>
> No signed-off-by:?
>

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Thread

[RFC v1] mm: SLAB freelist randomization Thomas Garnier <thgarnie@google.com> - 2016-04-06 21:40 +0200
  Re: [kernel-hardening] [RFC v1] mm: SLAB freelist randomization Greg KH <gregkh@linuxfoundation.org> - 2016-04-06 23:00 +0200
    Re: [kernel-hardening] [RFC v1] mm: SLAB freelist randomization Thomas Garnier <thgarnie@google.com> - 2016-04-06 23:10 +0200
  Re: [RFC v1] mm: SLAB freelist randomization Kees Cook <keescook@chromium.org> - 2016-04-06 23:50 +0200
    Re: [RFC v1] mm: SLAB freelist randomization Thomas Garnier <thgarnie@google.com> - 2016-04-07 17:30 +0200
    Re: [kernel-hardening] Re: [RFC v1] mm: SLAB freelist randomization Yves-Alexis Perez <corsac@debian.org> - 2016-04-07 18:20 +0200
      Re: [kernel-hardening] Re: [RFC v1] mm: SLAB freelist randomization Thomas Garnier <thgarnie@google.com> - 2016-04-07 18:40 +0200
    Re: [RFC v1] mm: SLAB freelist randomization Jesper Dangaard Brouer <brouer@redhat.com> - 2016-04-07 23:20 +0200
      Re: [RFC v1] mm: SLAB freelist randomization Kees Cook <keescook@chromium.org> - 2016-04-08 04:40 +0200

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