From: James Morris <jmorris@namei.org>
To: Miklos Szeredi <miklos@szeredi.hu>
Cc: akpm@linux-foundation.org, hch@infradead.org, serue@us.ibm.com,
viro@zeniv.linux.org.uk, linux-fsdevel@vger.kernel.org,
linux-kernel@vger.kernel.org, sds@tycho.nsa.gov,
eparis@redhat.com, linux-security-module@vger.kernel.org
Subject: Re: [patch 00/11] mount ownership and unprivileged mount syscall (v9)
Date: Wed, 19 Mar 2008 10:04:16 +1100 (EST) [thread overview]
Message-ID: <Xine.LNX.4.64.0803191003480.14598@us.intercode.com.au> (raw)
In-Reply-To: <E1Jba3y-0005eS-LX@pomaz-ex.szeredi.hu>
On Tue, 18 Mar 2008, Miklos Szeredi wrote:
> > We might need a user_mount hook which is called once the core kernel code
> > determines that it is a a valid unprivileged mount (although the sb_mount
> > hook will already have been called, IIUC).
>
> Does the order matter between core code's and the security module's
> permission checks?
Yes, the model is DAC before MAC.
> If it does, the cleanest would be to just move the
> core checks before the sb_mount hook, no?
Correct.
--
James Morris
<jmorris@namei.org>
prev parent reply other threads:[~2008-03-19 21:36 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-17 20:00 [patch 00/11] mount ownership and unprivileged mount syscall (v9) Miklos Szeredi
2008-03-17 20:00 ` [patch 01/11] unprivileged mounts: add user mounts to the kernel Miklos Szeredi
2008-03-17 20:00 ` [patch 02/11] unprivileged mounts: allow unprivileged umount Miklos Szeredi
2008-03-17 20:00 ` [patch 03/11] unprivileged mounts: propagate error values from clone_mnt Miklos Szeredi
2008-03-17 20:00 ` [patch 04/11] unprivileged mounts: account user mounts Miklos Szeredi
2008-03-17 20:00 ` [patch 05/11] unprivileged mounts: allow unprivileged bind mounts Miklos Szeredi
2008-03-17 20:00 ` [patch 06/11] unprivileged mounts: allow unprivileged mounts Miklos Szeredi
2008-03-17 20:01 ` [patch 07/11] unprivileged mounts: add sysctl tunable for "safe" property Miklos Szeredi
2008-03-17 20:01 ` [patch 08/11] unprivileged mounts: make fuse safe Miklos Szeredi
2008-03-17 20:01 ` [patch 09/11] unprivileged mounts: propagation: inherit owner from parent Miklos Szeredi
2008-03-17 20:01 ` [patch 10/11] unprivileged mounts: add "no submounts" flag Miklos Szeredi
2008-03-17 20:01 ` [patch 11/11] unprivileged mounts: copy mount ownership on namespace cloning Miklos Szeredi
2008-03-17 22:51 ` [patch 00/11] mount ownership and unprivileged mount syscall (v9) James Morris
2008-03-18 11:33 ` Miklos Szeredi
2008-03-18 23:04 ` James Morris [this message]
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