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From: Andrew Morton <akpm@linux-foundation.org>
To: Vasiliy Kulikov <segooon@gmail.com>
Cc: kernel-hardening@lists.openwall.com,
	linux-kernel@vger.kernel.org,
	Alexey Dobriyan <adobriyan@gmail.com>,
	Al Viro <viro@zeniv.linux.org.uk>,
	"H. Peter Anvin" <hpa@zytor.com>, Greg KH <greg@kroah.com>,
	Theodore Tso <tytso@MIT.EDU>, Alan Cox <alan@lxorguk.ukuu.org.uk>,
	Linus Torvalds <torvalds@linux-foundation.org>
Subject: [kernel-hardening] Re: [RFC v2 1/3] procfs: parse mount options
Date: Mon, 21 Nov 2011 16:34:07 -0800	[thread overview]
Message-ID: <20111121163407.d8946ad8.akpm@linux-foundation.org> (raw)
In-Reply-To: <20111119110126.GA11468@albatros>

On Sat, 19 Nov 2011 15:01:26 +0400
Vasiliy Kulikov <segooon@gmail.com> wrote:

> This patch adds support of procfs mount options.
> Actual mount options are coming in the next patches.

The patches look sane to me.

I assume that `mount -o remount' has been tested and works as expected?

I also assume that any file which was opened prior to the remount will
remain accessible to any process which has the fd.  Is this acceptable
from a security/operational POV?

WARNING: multiple messages have this Message-ID (diff)
From: Andrew Morton <akpm@linux-foundation.org>
To: Vasiliy Kulikov <segooon@gmail.com>
Cc: kernel-hardening@lists.openwall.com,
	linux-kernel@vger.kernel.org,
	Alexey Dobriyan <adobriyan@gmail.com>,
	Al Viro <viro@zeniv.linux.org.uk>,
	"H. Peter Anvin" <hpa@zytor.com>, Greg KH <greg@kroah.com>,
	Theodore Tso <tytso@MIT.EDU>, Alan Cox <alan@lxorguk.ukuu.org.uk>,
	Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [RFC v2 1/3] procfs: parse mount options
Date: Mon, 21 Nov 2011 16:34:07 -0800	[thread overview]
Message-ID: <20111121163407.d8946ad8.akpm@linux-foundation.org> (raw)
In-Reply-To: <20111119110126.GA11468@albatros>

On Sat, 19 Nov 2011 15:01:26 +0400
Vasiliy Kulikov <segooon@gmail.com> wrote:

> This patch adds support of procfs mount options.
> Actual mount options are coming in the next patches.

The patches look sane to me.

I assume that `mount -o remount' has been tested and works as expected?

I also assume that any file which was opened prior to the remount will
remain accessible to any process which has the fd.  Is this acceptable
from a security/operational POV?


  parent reply	other threads:[~2011-11-22  0:34 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-11-19 11:01 [kernel-hardening] [RFC v2 1/3] procfs: parse mount options Vasiliy Kulikov
2011-11-19 11:01 ` Vasiliy Kulikov
2011-11-19 11:02 ` [kernel-hardening] [RFC v2 2/3] procfs: add hidepid= and gid= " Vasiliy Kulikov
2011-11-19 11:02   ` Vasiliy Kulikov
2011-12-05 22:55   ` [kernel-hardening] " Hugh Dickins
2011-12-05 22:55     ` Hugh Dickins
2011-12-08 19:21     ` [kernel-hardening] " Vasiliy Kulikov
2011-12-08 19:21       ` Vasiliy Kulikov
2011-11-19 11:02 ` [kernel-hardening] [RFC v2 3/3] procfs: add documentation for procfs " Vasiliy Kulikov
2011-11-19 11:02   ` Vasiliy Kulikov
2011-11-22  0:34 ` Andrew Morton [this message]
2011-11-22  0:34   ` [RFC v2 1/3] procfs: parse " Andrew Morton
2011-11-22 10:07   ` [kernel-hardening] " Vasiliy Kulikov
2011-11-22 10:07     ` Vasiliy Kulikov

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