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Date: Sat, 3 Jun 2017 23:00:48 +0100
From: Alan Cox <>
To: Matt Brown <>
Cc: "Serge E. Hallyn" <>, Kees Cook <>,
        Casey Schaufler <>,
        Boris Lukashev
        Greg KH <>,
Subject: Re: Re: [PATCH v7 2/2] security: tty: make
 TIOCSTI ioctl require CAP_SYS_ADMIN


That one I'm more dubious about


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


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