From: Vasiliy Kulikov <segoon@openwall.com>
To: kernel-hardening@lists.openwall.com
Subject: Re: [kernel-hardening] [RFC 2/5 v4] procfs: add hidepid= and gid= mount options
Date: Mon, 20 Jun 2011 18:19:51 +0400 [thread overview]
Message-ID: <20110620141951.GA11607@albatros> (raw)
In-Reply-To: <20110620141137.GA31044@openwall.com>
On Mon, Jun 20, 2011 at 18:11 +0400, Solar Designer wrote:
> Vasiliy -
>
> On Mon, Jun 20, 2011 at 04:58:10PM +0300, Alexey Dobriyan wrote:
> > gid= is bad choice because
> > a) e. g. VFAT uses uid=/gid= mount options to make all inodes to have
> > certain uid/gid
> > b) uid=/gid=, IIRC, will be added as generic VFS mount options (like ro)
> > with semantics described in a)
> >
> > so having different semantics for /proc won't be good.
>
> I lost track of your proposals/patches. Aren't you currently proposing
> that gid= would make all inodes have the specified gid? If not, why
> not? Such semantics sound fine to me. That's what gid= does on procfs
> on Linux 2.4.x-ow.
With taskstats and similar mechanisms IMO it's better to use sysctls
instead of procfs mount options as it would influence not only on procfs
files.
Thanks,
--
Vasiliy
next prev parent reply other threads:[~2011-06-20 14:19 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <alpine.LRH.2.00.1106192154220.7503@taiga.selinuxproject.org>
2011-06-20 5:07 ` [kernel-hardening] Re: [RFC 2/5 v4] procfs: add hidepid= and gid= mount options James Morris
2011-06-20 5:07 ` James Morris
2011-06-20 10:39 ` [kernel-hardening] " Vasiliy Kulikov
2011-06-20 10:39 ` Vasiliy Kulikov
2011-06-20 10:43 ` [kernel-hardening] " James Morris
2011-06-20 10:43 ` James Morris
2011-06-20 11:23 ` [kernel-hardening] " KOSAKI Motohiro
2011-06-20 11:23 ` KOSAKI Motohiro
2011-06-20 17:06 ` [kernel-hardening] " Vasiliy Kulikov
2011-06-20 17:06 ` Vasiliy Kulikov
2011-06-20 19:41 ` [kernel-hardening] " Eric W. Biederman
2011-06-20 19:41 ` Eric W. Biederman
2011-06-20 23:19 ` [kernel-hardening] " James Morris
2011-06-20 23:19 ` James Morris
2011-06-21 18:28 ` [kernel-hardening] " Vasiliy Kulikov
2011-06-21 18:28 ` Vasiliy Kulikov
2011-06-20 13:58 ` [kernel-hardening] " Alexey Dobriyan
2011-06-20 13:58 ` Alexey Dobriyan
2011-06-20 14:11 ` [kernel-hardening] " Solar Designer
2011-06-20 14:19 ` Vasiliy Kulikov [this message]
2011-06-20 14:25 ` Solar Designer
2011-06-20 14:35 ` Vasiliy Kulikov
2011-06-20 14:47 ` Solar Designer
2011-06-20 15:00 ` Vasiliy Kulikov
2011-06-20 13:31 ` [kernel-hardening] " Solar Designer
2011-06-20 13:31 ` Solar Designer
2011-06-15 18:51 [kernel-hardening] " Vasiliy Kulikov
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