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Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make TIOCSTI ioctl require CAP_SYS_ADMIN

From Alan Cox <gnomes@lxorguk.ukuu.org.uk>
Newsgroups linux.kernel
Subject Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make TIOCSTI ioctl require CAP_SYS_ADMIN
Date 2017-06-04 00:10 +0200
Message-ID <tOpp7-4fW-5@gated-at.bofh.it> (permalink)
References (9 earlier) <tNW3M-2sh-21@gated-at.bofh.it> <tNWQ9-314-17@gated-at.bofh.it> <tNXjb-3qc-17@gated-at.bofh.it> <tO13r-5Op-13@gated-at.bofh.it> <tO1G9-621-1@gated-at.bofh.it>
Organization Intel Corporation

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> TIOCSLCKTRMIOS

That one I'm more dubious about

> TIOCSLTC
> TIOCSSOFTCAR

tty_io.c also has a few and n_tty has a couple we'd want.

> 
> would it be overkill to have a sysctl kernel.ttyioctlwhitelist.X where X
> is one of the ioctls above?

Why would anyone want to change the entries on that list

Alan

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[PATCH v7 2/2] security: tty: make TIOCSTI ioctl require CAP_SYS_ADMIN Matt Brown <matt@nmatt.com> - 2017-05-29 23:40 +0200
  Re: [PATCH v7 2/2] security: tty: make TIOCSTI ioctl require  CAP_SYS_ADMIN Alan Cox <gnomes@lxorguk.ukuu.org.uk> - 2017-05-30 00:30 +0200
    Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make TIOCSTI  ioctl require CAP_SYS_ADMIN Boris Lukashev <blukashev@sempervictus.com> - 2017-05-30 02:00 +0200
      Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make TIOCSTI  ioctl require CAP_SYS_ADMIN Casey Schaufler <casey@schaufler-ca.com> - 2017-05-30 02:30 +0200
        Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make TIOCSTI  ioctl require CAP_SYS_ADMIN Matt Brown <matt@nmatt.com> - 2017-05-30 04:10 +0200
          Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make TIOCSTI  ioctl require CAP_SYS_ADMIN Casey Schaufler <casey@schaufler-ca.com> - 2017-05-30 04:50 +0200
            Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make TIOCSTI  ioctl require CAP_SYS_ADMIN Matt Brown <matt@nmatt.com> - 2017-05-30 05:20 +0200
              Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make  TIOCSTI ioctl require CAP_SYS_ADMIN Alan Cox <gnomes@lxorguk.ukuu.org.uk> - 2017-05-30 14:30 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make TIOCSTI  ioctl require CAP_SYS_ADMIN Matt Brown <matt@nmatt.com> - 2017-05-30 18:30 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make TIOCSTI  ioctl require CAP_SYS_ADMIN Daniel Micay <danielmicay@gmail.com> - 2017-05-30 18:50 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make  TIOCSTI ioctl require CAP_SYS_ADMIN Stephen Smalley <sds@tycho.nsa.gov> - 2017-05-30 20:30 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make TIOCSTI  ioctl require CAP_SYS_ADMIN Nick Kralevich <nnk@google.com> - 2017-05-30 20:50 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make TIOCSTI  ioctl require CAP_SYS_ADMIN Matt Brown <matt@nmatt.com> - 2017-05-30 21:00 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make  TIOCSTI ioctl require CAP_SYS_ADMIN Daniel Micay <danielmicay@gmail.com> - 2017-05-30 22:30 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make TIOCSTI  ioctl require CAP_SYS_ADMIN Matt Brown <matt@nmatt.com> - 2017-05-31 01:10 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make  TIOCSTI ioctl require CAP_SYS_ADMIN Daniel Micay <danielmicay@gmail.com> - 2017-05-31 01:50 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make TIOCSTI  ioctl require CAP_SYS_ADMIN Matt Brown <matt@nmatt.com> - 2017-05-31 02:00 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make  TIOCSTI ioctl require CAP_SYS_ADMIN Alan Cox <gnomes@lxorguk.ukuu.org.uk> - 2017-05-31 01:00 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make TIOCSTI  ioctl require CAP_SYS_ADMIN Matt Brown <matt@nmatt.com> - 2017-05-31 01:20 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make  TIOCSTI ioctl require CAP_SYS_ADMIN Alan Cox <gnomes@lxorguk.ukuu.org.uk> - 2017-05-31 02:00 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make TIOCSTI  ioctl require CAP_SYS_ADMIN Kees Cook <keescook@chromium.org> - 2017-06-01 04:40 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make  TIOCSTI ioctl require CAP_SYS_ADMIN Alan Cox <gnomes@lxorguk.ukuu.org.uk> - 2017-06-01 15:10 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make  TIOCSTI ioctl require CAP_SYS_ADMIN "Serge E. Hallyn" <serge@hallyn.com> - 2017-06-01 19:20 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make  TIOCSTI ioctl require CAP_SYS_ADMIN Alan Cox <gnomes@lxorguk.ukuu.org.uk> - 2017-06-01 23:30 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make TIOCSTI  ioctl require CAP_SYS_ADMIN Kees Cook <keescook@chromium.org> - 2017-06-01 21:00 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make  TIOCSTI ioctl require CAP_SYS_ADMIN Alan Cox <gnomes@lxorguk.ukuu.org.uk> - 2017-06-01 23:30 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make TIOCSTI  ioctl require CAP_SYS_ADMIN Matt Brown <matt@nmatt.com> - 2017-06-02 16:50 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make  TIOCSTI ioctl require CAP_SYS_ADMIN "Serge E. Hallyn" <serge@hallyn.com> - 2017-06-02 17:40 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make TIOCSTI  ioctl require CAP_SYS_ADMIN Matt Brown <matt@nmatt.com> - 2017-06-02 18:10 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make  TIOCSTI ioctl require CAP_SYS_ADMIN "Serge E. Hallyn" <serge@hallyn.com> - 2017-06-02 19:00 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make TIOCSTI  ioctl require CAP_SYS_ADMIN Matt Brown <matt@nmatt.com> - 2017-06-02 19:40 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make  TIOCSTI ioctl require CAP_SYS_ADMIN "Serge E. Hallyn" <serge@hallyn.com> - 2017-06-02 20:20 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make TIOCSTI  ioctl require CAP_SYS_ADMIN Matt Brown <matt@nmatt.com> - 2017-06-02 21:30 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make TIOCSTI  ioctl require CAP_SYS_ADMIN Kees Cook <keescook@chromium.org> - 2017-06-02 21:30 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make TIOCSTI  ioctl require CAP_SYS_ADMIN Matt Brown <matt@nmatt.com> - 2017-06-02 21:30 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make  TIOCSTI ioctl require CAP_SYS_ADMIN Alan Cox <gnomes@lxorguk.ukuu.org.uk> - 2017-06-02 22:10 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make TIOCSTI  ioctl require CAP_SYS_ADMIN Nick Kralevich <nnk@google.com> - 2017-06-02 22:20 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make TIOCSTI  ioctl require CAP_SYS_ADMIN Matt Brown <matt@nmatt.com> - 2017-06-02 22:50 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make  TIOCSTI ioctl require CAP_SYS_ADMIN Alan Cox <gnomes@lxorguk.ukuu.org.uk> - 2017-06-04 00:10 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make TIOCSTI  ioctl require CAP_SYS_ADMIN Matt Brown <matt@nmatt.com> - 2017-06-04 00:30 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make TIOCSTI  ioctl require CAP_SYS_ADMIN Peter Dolding <oiaohm@gmail.com> - 2017-06-04 05:40 +0200
              Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make TIOCSTI  ioctl require CAP_SYS_ADMIN Casey Schaufler <casey@schaufler-ca.com> - 2017-05-30 17:30 +0200
                Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make TIOCSTI  ioctl require CAP_SYS_ADMIN Matt Brown <matt@nmatt.com> - 2017-05-30 18:10 +0200
        Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make TIOCSTI  ioctl require CAP_SYS_ADMIN Boris Lukashev <blukashev@sempervictus.com> - 2017-06-04 08:30 +0200
      Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make TIOCSTI  ioctl require CAP_SYS_ADMIN James Morris <jmorris@namei.org> - 2017-05-31 04:50 +0200
        Re: [kernel-hardening] Re: [PATCH v7 2/2] security: tty: make TIOCSTI  ioctl require CAP_SYS_ADMIN Matt Brown <matt@nmatt.com> - 2017-05-31 06:20 +0200
    Re: [PATCH v7 2/2] security: tty: make TIOCSTI ioctl require  CAP_SYS_ADMIN Matt Brown <matt@nmatt.com> - 2017-05-30 02:20 +0200

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