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Re: [kernel-hardening] [PATCH v4 next 0/3] modules: automatic module loading restrictions

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Hi Djalal,

Thank you for your work on this!

On Mon, May 22, 2017 at 01:57:03PM +0200, Djalal Harouni wrote:
> *) When modules_autoload_mode is set to (2), automatic module loading is
> disabled for all. Once set, this value can not be changed.

What purpose does this securelevel-like property ("Once set, this value
can not be changed.") serve here?  I think this mode 2 is needed, but
without this extra property, which is bypassable by e.g. explicitly
loaded kernel modules anyway (and that's OK).

I'm sorry if this has been discussed before.

Alexander

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[PATCH v4 next 0/3] modules: automatic module loading restrictions Djalal Harouni <tixxdz@gmail.com> - 2017-05-22 14:00 +0200
  [PATCH v4 next 3/3] modules:capabilities: add a per-task modules auto-load mode Djalal Harouni <tixxdz@gmail.com> - 2017-05-22 14:00 +0200
    Re: [PATCH v4 next 3/3] modules:capabilities: add a per-task modules  auto-load mode kbuild test robot <lkp@intel.com> - 2017-05-23 16:20 +0200
  [PATCH v4 next 2/3] modules:capabilities: automatic module loading restriction Djalal Harouni <tixxdz@gmail.com> - 2017-05-22 14:10 +0200
    Re: [PATCH v4 next 2/3] modules:capabilities: automatic module  loading restriction Kees Cook <keescook@chromium.org> - 2017-05-23 00:30 +0200
  Re: [kernel-hardening] [PATCH v4 next 0/3] modules: automatic module loading restrictions Solar Designer <solar@openwall.com> - 2017-05-22 14:20 +0200
    Re: [kernel-hardening] [PATCH v4 next 0/3] modules: automatic module  loading restrictions Djalal Harouni <tixxdz@gmail.com> - 2017-05-22 15:50 +0200
      Re: [kernel-hardening] [PATCH v4 next 0/3] modules: automatic module loading restrictions Solar Designer <solar@openwall.com> - 2017-05-22 18:50 +0200
        Re: [kernel-hardening] [PATCH v4 next 0/3] modules: automatic module  loading restrictions Djalal Harouni <tixxdz@gmail.com> - 2017-05-22 22:00 +0200
          Re: [kernel-hardening] [PATCH v4 next 0/3] modules: automatic module  loading restrictions Kees Cook <keescook@chromium.org> - 2017-05-23 01:10 +0200
            Re: [kernel-hardening] [PATCH v4 next 0/3] modules: automatic module  loading restrictions Andy Lutomirski <luto@kernel.org> - 2017-05-23 01:40 +0200
              Re: [kernel-hardening] [PATCH v4 next 0/3] modules: automatic module  loading restrictions Kees Cook <keescook@chromium.org> - 2017-05-23 02:00 +0200
              Re: [kernel-hardening] [PATCH v4 next 0/3] modules: automatic module  loading restrictions Djalal Harouni <tixxdz@gmail.com> - 2017-05-23 15:10 +0200
            Re: [kernel-hardening] [PATCH v4 next 0/3] modules: automatic module loading restrictions Solar Designer <solar@openwall.com> - 2017-05-23 09:50 +0200
              Re: [kernel-hardening] [PATCH v4 next 0/3] modules: automatic module  loading restrictions Kees Cook <keescook@google.com> - 2017-05-23 20:40 +0200
                Re: [kernel-hardening] [PATCH v4 next 0/3] modules: automatic module  loading restrictions Andy Lutomirski <luto@kernel.org> - 2017-05-23 22:00 +0200
              Re: [kernel-hardening] [PATCH v4 next 0/3] modules: automatic module  loading restrictions Djalal Harouni <tixxdz@gmail.com> - 2017-05-24 20:10 +0200

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