From: Dave Jones <davej@redhat.com>
To: Ben Hutchings <ben@decadent.org.uk>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jslaby@suse.cz>, Bastian Blank <waldi@debian.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] sysrq: Allow access to sensitive keys to be restricted by default
Date: Sun, 29 Sep 2013 21:40:09 -0400 [thread overview]
Message-ID: <20130930014009.GA30635@redhat.com> (raw)
In-Reply-To: <1380504668.14493.22.camel@deadeye.wl.decadent.org.uk>
On Mon, Sep 30, 2013 at 02:31:08AM +0100, Ben Hutchings wrote:
> From: Bastian Blank <waldi@debian.org>
>
> Add a Kconfig variable to set the initial value of the Magic SysRq mask
> (sysctl: kernel.sysrq).
>
> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
> ---
> This has been in Debian for a while, but should probably be signed-off
> by Bastian as well.
>
> Debian sets this to 0x01b6, which excludes.
>
> 8 - enable debugging dumps of processes etc.
> 64 - enable signalling of processes (term, kill, oom-kill)
> ...
>
> +config MAGIC_SYSRQ_DEFAULT_MASK
> + hex "Default mask for Magic SysRq keys on the console"
> + depends on MAGIC_SYSRQ
> + default 1
> + help
> + Specifies the default mask for the allowed SysRq keys. This can be
> + used to disable several sensitive keys by default.
Might be nice to have the mask values duplicated here to save having to
go grepping through code ?
Dave
next prev parent reply other threads:[~2013-09-30 1:40 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-30 1:31 Ben Hutchings
2013-09-30 1:40 ` Dave Jones [this message]
2013-09-30 1:53 ` Greg Kroah-Hartman
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