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Re: [PATCH] make TIOCSTI ioctl require CAP_SYS_ADMIN

From James Morris <jmorris@namei.org>
Newsgroups linux.kernel
Subject Re: [PATCH] make TIOCSTI ioctl require CAP_SYS_ADMIN
Date 2017-04-19 13:20 +0200
Message-ID <txVOq-2NI-17@gated-at.bofh.it> (permalink)
References <txOMV-6En-9@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Tue, 18 Apr 2017, Matt Brown wrote:

> This patch reproduces GRKERNSEC_HARDEN_TTY functionality from the grsecurity
> project in-kernel.

It seems like an ugly hack to an ugly feature (CAP_SYS_ADMIN barely makes 
sense here), and rather than sprinkling these types of things throughout 
the kernel, I wonder if it might be better to implement it via LSM, in the 
YAMA module.



- James
-- 
James Morris
<jmorris@namei.org>

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Thread

[PATCH] make TIOCSTI ioctl require CAP_SYS_ADMIN Matt Brown <matt@nmatt.com> - 2017-04-19 05:50 +0200
  Re: [PATCH] make TIOCSTI ioctl require CAP_SYS_ADMIN "Serge E. Hallyn" <serge@hallyn.com> - 2017-04-19 07:00 +0200
    Re: [PATCH] make TIOCSTI ioctl require CAP_SYS_ADMIN Kees Cook <keescook@chromium.org> - 2017-04-19 07:30 +0200
      Re: [PATCH] make TIOCSTI ioctl require CAP_SYS_ADMIN Matt Brown <matt@nmatt.com> - 2017-04-20 01:50 +0200
    Re: [PATCH] make TIOCSTI ioctl require CAP_SYS_ADMIN Matt Brown <matt@nmatt.com> - 2017-04-20 01:30 +0200
      Re: [PATCH] make TIOCSTI ioctl require CAP_SYS_ADMIN "Serge E. Hallyn" <serge@hallyn.com> - 2017-04-20 02:00 +0200
        Re: [PATCH] make TIOCSTI ioctl require CAP_SYS_ADMIN Matt Brown <matt@nmatt.com> - 2017-04-20 06:50 +0200
          Re: [PATCH] make TIOCSTI ioctl require CAP_SYS_ADMIN "Serge E. Hallyn" <serge@hallyn.com> - 2017-04-20 17:20 +0200
            Re: [kernel-hardening] Re: [PATCH] make TIOCSTI ioctl require  CAP_SYS_ADMIN "Serge E. Hallyn" <serge@hallyn.com> - 2017-04-20 17:30 +0200
            Re: [PATCH] make TIOCSTI ioctl require CAP_SYS_ADMIN matt@nmatt.com - 2017-04-20 19:20 +0200
              Re: [PATCH] make TIOCSTI ioctl require CAP_SYS_ADMIN "Serge E. Hallyn" <serge@hallyn.com> - 2017-04-20 19:50 +0200
                Re: [PATCH] make TIOCSTI ioctl require CAP_SYS_ADMIN Matt Brown <matt@nmatt.com> - 2017-04-21 07:20 +0200
                Re: [PATCH] make TIOCSTI ioctl require CAP_SYS_ADMIN "Serge E. Hallyn" <serge@hallyn.com> - 2017-04-21 07:30 +0200
                Re: [PATCH] make TIOCSTI ioctl require CAP_SYS_ADMIN Kees Cook <keescook@chromium.org> - 2017-04-21 08:10 +0200
                Re: [PATCH] make TIOCSTI ioctl require CAP_SYS_ADMIN Matt Brown <matt@nmatt.com> - 2017-04-22 19:20 +0200
                Re: [PATCH] make TIOCSTI ioctl require CAP_SYS_ADMIN "Serge E. Hallyn" <serge@hallyn.com> - 2017-04-22 22:00 +0200
  Re: [PATCH] make TIOCSTI ioctl require CAP_SYS_ADMIN James Morris <jmorris@namei.org> - 2017-04-19 13:20 +0200
    Re: [PATCH] make TIOCSTI ioctl require CAP_SYS_ADMIN Matt Brown <matt@nmatt.com> - 2017-04-20 02:10 +0200

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