From: James Morris <jmorris@namei.org>
To: Dave Chinner <david@fromorbit.com>
Cc: Alan Cox <gnomes@lxorguk.ukuu.org.uk>, TongZhang <ztong@vt.edu>,
darrick.wong@oracle.com, linux-xfs@vger.kernel.org,
LKML <linux-kernel@vger.kernel.org>,
linux-security-module@vger.kernel.org,
Wenbo Shen <shenwenbosmile@gmail.com>
Subject: Re: Leaking Path in XFS's ioctl interface(missing LSM check)
Date: Fri, 28 Sep 2018 07:23:42 +1000 (AEST) [thread overview]
Message-ID: <alpine.LRH.2.21.1809280720330.8410@namei.org> (raw)
In-Reply-To: <20180927013812.GF31060@dastard>
On Thu, 27 Sep 2018, Dave Chinner wrote:
> Sure, but there are so many CAP_SYS_ADMIN-only ioctls in the kernel
> that have no LSM coverage that this is not an isolated problem that
> people setting up such systems have to deal with.
I could be missing something here, but all ioctls are mediated by LSM at a
high level (security_file_ioctl). Some problematic ones are singled out at
that point by LSMs for special handling.
--
James Morris
<jmorris@namei.org>
next prev parent reply other threads:[~2018-09-27 21:23 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-26 0:51 Leaking Path in XFS's ioctl interface(missing LSM check) TongZhang
2018-09-26 1:33 ` Dave Chinner
2018-09-26 13:23 ` Stephen Smalley
2018-09-27 2:08 ` Dave Chinner
2018-09-26 18:24 ` Alan Cox
2018-09-27 1:38 ` Dave Chinner
2018-09-27 21:23 ` James Morris [this message]
2018-09-27 22:19 ` Dave Chinner
2018-09-27 23:12 ` Tetsuo Handa
2018-09-30 14:16 ` Alan Cox
2018-10-01 0:25 ` Dave Chinner
2018-10-01 15:04 ` Alan Cox
2018-10-01 15:25 ` Theodore Y. Ts'o
2018-10-01 22:53 ` Dave Chinner
2018-10-01 15:44 ` Darrick J. Wong
2018-10-01 20:08 ` James Morris
2018-10-01 22:45 ` Dave Chinner
2018-10-02 19:20 ` James Morris
2018-10-02 22:42 ` Dave Chinner
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