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Re: [PATCH v2 01/11] mm: Implement stack frame object validation

From Andy Lutomirski <luto@amacapital.net>
Newsgroups linux.kernel
Subject Re: [PATCH v2 01/11] mm: Implement stack frame object validation
Date 2016-07-14 00:10 +0200
Message-ID <rUAvU-Hu-17@gated-at.bofh.it> (permalink)
References <rUAmd-nH-3@gated-at.bofh.it> <rUAmj-nH-35@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Wed, Jul 13, 2016 at 2:55 PM, Kees Cook <keescook@chromium.org> wrote:
> This creates per-architecture function arch_within_stack_frames() that
> should validate if a given object is contained by a kernel stack frame.
> Initial implementation is on x86.
>
> This is based on code from PaX.
>

This, along with Josh's livepatch work, are two examples of unwinders
that matter for correctness instead of just debugging.  ISTM this
should just use Josh's code directly once it's been written.

--Andy

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Thread

[PATCH v2 0/11] mm: Hardened usercopy Kees Cook <keescook@chromium.org> - 2016-07-14 00:00 +0200
  [PATCH v2 04/11] ARM: uaccess: Enable hardened usercopy Kees Cook <keescook@chromium.org> - 2016-07-14 00:00 +0200
  [PATCH v2 01/11] mm: Implement stack frame object validation Kees Cook <keescook@chromium.org> - 2016-07-14 00:00 +0200
    Re: [PATCH v2 01/11] mm: Implement stack frame object validation Kees Cook <keescook@chromium.org> - 2016-07-14 00:10 +0200
      Re: [PATCH v2 01/11] mm: Implement stack frame object validation Josh Poimboeuf <jpoimboe@redhat.com> - 2016-07-14 07:50 +0200
        Re: [PATCH v2 01/11] mm: Implement stack frame object validation Kees Cook <keescook@chromium.org> - 2016-07-14 20:20 +0200
          Re: [PATCH v2 01/11] mm: Implement stack frame object validation Josh Poimboeuf <jpoimboe@redhat.com> - 2016-07-14 21:30 +0200
            Re: [PATCH v2 01/11] mm: Implement stack frame object validation Kees Cook <keescook@chromium.org> - 2016-07-14 23:40 +0200
    Re: [PATCH v2 01/11] mm: Implement stack frame object validation Andy Lutomirski <luto@amacapital.net> - 2016-07-14 00:10 +0200
  [PATCH v2 06/11] ia64/uaccess: Enable hardened usercopy Kees Cook <keescook@chromium.org> - 2016-07-14 00:00 +0200

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