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Re: [PATCH 26/26] x86, pkeys: Documentation

From Dave Hansen <dave@sr71.net>
Newsgroups linux.kernel
Subject Re: [PATCH 26/26] x86, pkeys: Documentation
Date 2015-10-02 00:40 +0200
Message-ID <qeUG5-1pD-3@gated-at.bofh.it> (permalink)
References (3 earlier) <qb13r-4sC-1@gated-at.bofh.it> <qcbtN-7ST-37@gated-at.bofh.it> <qckdI-3Kz-5@gated-at.bofh.it> <qeK42-2oH-7@gated-at.bofh.it> <qeSNY-71t-25@gated-at.bofh.it>
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On 10/01/2015 01:39 PM, Kees Cook wrote:
> On Thu, Oct 1, 2015 at 4:17 AM, Ingo Molnar <mingo@kernel.org> wrote:
>> So could we try to add an (opt-in) kernel option that enables this transparently
>> and automatically for all PROT_EXEC && !PROT_WRITE mappings, without any
>> user-space changes and syscalls necessary?
> 
> I would like this very much. :)

Here it is in a quite fugly form (well, it's not opt-in).  Init crashes
if I boot with this, though.

I'll see if I can turn it in to a bit more of an opt-in and see what's
actually going wrong.

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Re: [PATCH 26/26] x86, pkeys: Documentation Ingo Molnar <mingo@kernel.org> - 2015-09-24 12:00 +0200
  Re: [PATCH 26/26] x86, pkeys: Documentation Andy Lutomirski <luto@amacapital.net> - 2015-09-24 21:20 +0200
    Re: [PATCH 26/26] x86, pkeys: Documentation Ingo Molnar <mingo@kernel.org> - 2015-09-25 09:20 +0200
  Re: [PATCH 26/26] x86, pkeys: Documentation Dave Hansen <dave@sr71.net> - 2015-09-24 21:20 +0200
    Re: [PATCH 26/26] x86, pkeys: Documentation Ingo Molnar <mingo@kernel.org> - 2015-09-25 08:20 +0200
    Re: [PATCH 26/26] x86, pkeys: Documentation Ingo Molnar <mingo@kernel.org> - 2015-10-01 13:20 +0200
      Re: [PATCH 26/26] x86, pkeys: Documentation Kees Cook <keescook@google.com> - 2015-10-01 22:40 +0200
        Re: [PATCH 26/26] x86, pkeys: Documentation Andy Lutomirski <luto@amacapital.net> - 2015-10-01 22:50 +0200
          Re: [PATCH 26/26] x86, pkeys: Documentation Ingo Molnar <mingo@kernel.org> - 2015-10-02 08:30 +0200
            Re: [PATCH 26/26] x86, pkeys: Documentation Dave Hansen <dave@sr71.net> - 2015-10-02 20:00 +0200
              Re: [PATCH 26/26] x86, pkeys: Documentation Ingo Molnar <mingo@kernel.org> - 2015-10-03 09:30 +0200
        Re: [PATCH 26/26] x86, pkeys: Documentation Dave Hansen <dave@sr71.net> - 2015-10-01 23:00 +0200
        Re: [PATCH 26/26] x86, pkeys: Documentation Dave Hansen <dave@sr71.net> - 2015-10-02 00:40 +0200
        Re: [PATCH 26/26] x86, pkeys: Documentation Dave Hansen <dave@sr71.net> - 2015-10-02 00:40 +0200
          Re: [PATCH 26/26] x86, pkeys: Documentation Kees Cook <keescook@google.com> - 2015-10-02 00:40 +0200
          Re: [PATCH 26/26] x86, pkeys: Documentation Linus Torvalds <torvalds@linux-foundation.org> - 2015-10-02 00:50 +0200
            Re: [PATCH 26/26] x86, pkeys: Documentation Dave Hansen <dave@sr71.net> - 2015-10-02 01:00 +0200
              Re: [PATCH 26/26] x86, pkeys: Documentation Linus Torvalds <torvalds@linux-foundation.org> - 2015-10-02 03:40 +0200
                Re: [PATCH 26/26] x86, pkeys: Documentation Dave Hansen <dave@sr71.net> - 2015-10-02 20:10 +0200
            Re: [PATCH 26/26] x86, pkeys: Documentation Ingo Molnar <mingo@kernel.org> - 2015-10-02 09:10 +0200
              Re: [PATCH 26/26] x86, pkeys: Documentation Ingo Molnar <mingo@kernel.org> - 2015-10-03 09:00 +0200
            Re: [PATCH 26/26] x86, pkeys: Documentation Paolo Bonzini <pbonzini@redhat.com> - 2015-10-02 13:50 +0200
              Re: [PATCH 26/26] x86, pkeys: Documentation Linus Torvalds <torvalds@linux-foundation.org> - 2015-10-02 14:00 +0200
                Re: [PATCH 26/26] x86, pkeys: Documentation Paolo Bonzini <pbonzini@redhat.com> - 2015-10-02 14:20 +0200
                Re: [PATCH 26/26] x86, pkeys: Documentation Ingo Molnar <mingo@kernel.org> - 2015-10-03 08:50 +0200
          Re: [PATCH 26/26] x86, pkeys: Documentation Andy Lutomirski <luto@amacapital.net> - 2015-10-02 01:00 +0200
          Re: [PATCH 26/26] x86, pkeys: Documentation Ingo Molnar <mingo@kernel.org> - 2015-10-02 08:10 +0200
  Re: [PATCH 26/26] x86, pkeys: Documentation Ingo Molnar <mingo@kernel.org> - 2015-10-03 10:20 +0200

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