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From: Pavel Machek <pavel-+ZI9xUNit7I@public.gmane.org>
To: Miklos Szeredi <miklos-sUDqSbJrdHQHWmgEVkV9KA@public.gmane.org>
Cc: akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org,
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	linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
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	util-linux-ng-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [patch 1/9] unprivileged mounts: add user mounts to the kernel
Date: Tue, 8 Jan 2008 21:47:22 +0000	[thread overview]
Message-ID: <20080108214721.GF5050@ucw.cz> (raw)
In-Reply-To: <20080108113619.213519920-sUDqSbJrdHQHWmgEVkV9KA@public.gmane.org>


On Tue 2008-01-08 12:35:03, Miklos Szeredi wrote:
> From: Miklos Szeredi <mszeredi-AlSwsSmVLrQ@public.gmane.org>
> 
> This patchset adds support for keeping mount ownership information in the
> kernel, and allow unprivileged mount(2) and umount(2) in certain cases.
> 
> The mount owner has the following privileges:
> 
>   - unmount the owned mount
>   - create a submount under the owned mount

- create traps for updatedb, etc?

Is there Doc* file somewhere describing dangers of allowing this?
							Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

  parent reply	other threads:[~2008-01-08 21:47 UTC|newest]

Thread overview: 62+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-01-08 11:35 [patch 0/9] mount ownership and unprivileged mount syscall (v6) Miklos Szeredi
2008-01-08 11:35 ` [patch 1/9] unprivileged mounts: add user mounts to the kernel Miklos Szeredi
2008-01-08 21:34   ` Pavel Machek
     [not found]   ` <20080108113619.213519920-sUDqSbJrdHQHWmgEVkV9KA@public.gmane.org>
2008-01-08 21:47     ` Pavel Machek [this message]
2008-01-14 21:46   ` Serge E. Hallyn
2008-01-08 11:35 ` [patch 2/9] unprivileged mounts: allow unprivileged umount Miklos Szeredi
     [not found]   ` <20080108113620.664824939-sUDqSbJrdHQHWmgEVkV9KA@public.gmane.org>
2008-01-14 21:48     ` Serge E. Hallyn
2008-01-08 11:35 ` [patch 3/9] unprivileged mounts: account user mounts Miklos Szeredi
     [not found]   ` <20080108113623.446872155-sUDqSbJrdHQHWmgEVkV9KA@public.gmane.org>
2008-01-08 18:18     ` Dave Hansen
2008-01-08 19:18       ` Miklos Szeredi
2008-01-14 21:53   ` Serge E. Hallyn
2008-01-08 11:35 ` [patch 4/9] unprivileged mounts: propagate error values from clone_mnt Miklos Szeredi
     [not found]   ` <20080108113624.898035951-sUDqSbJrdHQHWmgEVkV9KA@public.gmane.org>
2008-01-14 22:23     ` Serge E. Hallyn
2008-01-15 10:15       ` Miklos Szeredi
2008-01-08 11:35 ` [patch 5/9] unprivileged mounts: allow unprivileged bind mounts Miklos Szeredi
2008-01-08 18:12   ` Dave Hansen
2008-01-08 19:08     ` Miklos Szeredi
     [not found]       ` <E1JCJoQ-0003g9-Nk-8f8m9JG5TPIdUIPVzhDTVZP2KDSNp7ea@public.gmane.org>
2008-01-08 19:15         ` Dave Hansen
2008-01-08 20:44         ` Szabolcs Szakacsits
2008-01-09 12:45         ` Jan Engelhardt
     [not found]           ` <Pine.LNX.4.64.0801091340270.29244-vVwEwcwQeYFPkBl3ERsXe1l1cybopEuJUBSOeVevoDU@public.gmane.org>
2008-01-09 13:26             ` Karel Zak
2008-01-09 13:32               ` Miklos Szeredi
2008-01-08 18:26   ` Dave Hansen
2008-01-08 19:21     ` Miklos Szeredi
     [not found]   ` <20080108113626.895583537-sUDqSbJrdHQHWmgEVkV9KA@public.gmane.org>
2008-01-10  4:47     ` Serge E. Hallyn
2008-01-14 22:42   ` Serge E. Hallyn
2008-01-08 11:35 ` [patch 6/9] unprivileged mounts: allow unprivileged mounts Miklos Szeredi
2008-01-09 11:11   ` Karel Zak
     [not found]     ` <20080109111120.GI3926-CxBs/XhZ2BtHjqfyn1fVYA@public.gmane.org>
2008-01-09 12:41       ` Miklos Szeredi
2008-01-14 22:58   ` Serge E. Hallyn
2008-01-08 11:35 ` [patch 7/9] unprivileged mounts: allow unprivileged fuse mounts Miklos Szeredi
2008-01-08 21:46   ` Pavel Machek
     [not found]     ` <20080108214625.GE5050-+ZI9xUNit7I@public.gmane.org>
2008-01-08 22:42       ` Miklos Szeredi
2008-01-08 22:58         ` Pavel Machek
2008-01-09  9:11           ` Miklos Szeredi
2008-01-09 11:33             ` Pavel Machek
2008-01-09 13:16               ` Miklos Szeredi
2008-01-09 13:35                 ` Pavel Machek
2008-01-09 13:48                   ` Miklos Szeredi
     [not found]                     ` <E1JCbIb-0005rA-5O-8f8m9JG5TPIdUIPVzhDTVZP2KDSNp7ea@public.gmane.org>
2008-01-09 14:00                       ` Pavel Machek
2008-01-09 14:14                         ` Miklos Szeredi
2008-01-08 23:56         ` Nigel Cunningham
     [not found]           ` <47840DAC.5000108-MhVfhJ0qHmuWn91e4EydUaxOck334EZe@public.gmane.org>
2008-01-09  8:47             ` Miklos Szeredi
     [not found]               ` <E1JCWax-0005Ck-Kg-8f8m9JG5TPIdUIPVzhDTVZP2KDSNp7ea@public.gmane.org>
2008-01-09  9:29                 ` Nigel Cunningham
2008-01-09 11:12               ` Pavel Machek
2008-01-09  9:19             ` Szabolcs Szakacsits
     [not found]   ` <20080108113630.861045063-sUDqSbJrdHQHWmgEVkV9KA@public.gmane.org>
2008-01-14 23:24     ` Serge E. Hallyn
2008-01-15 10:29       ` Miklos Szeredi
     [not found]         ` <E1JEj3N-0000vj-QA-8f8m9JG5TPIdUIPVzhDTVZP2KDSNp7ea@public.gmane.org>
2008-01-15 13:35           ` Serge E. Hallyn
2008-01-08 11:35 ` [patch 8/9] unprivileged mounts: propagation: inherit owner from parent Miklos Szeredi
     [not found]   ` <20080108113632.895453887-sUDqSbJrdHQHWmgEVkV9KA@public.gmane.org>
2008-01-14 23:13     ` Serge E. Hallyn
2008-01-15 10:39       ` Miklos Szeredi
     [not found]         ` <E1JEjCG-0000wz-BS-8f8m9JG5TPIdUIPVzhDTVZP2KDSNp7ea@public.gmane.org>
2008-01-15 14:21           ` Serge E. Hallyn
2008-01-15 14:37             ` Miklos Szeredi
     [not found]               ` <E1JEmv3-0001RN-6J-8f8m9JG5TPIdUIPVzhDTVZP2KDSNp7ea@public.gmane.org>
2008-01-15 14:59                 ` Serge E. Hallyn
2008-01-08 11:35 ` [patch 9/9] unprivileged mounts: add "no submounts" flag Miklos Szeredi
     [not found]   ` <20080108113634.382855604-sUDqSbJrdHQHWmgEVkV9KA@public.gmane.org>
2008-01-14 23:39     ` Serge E. Hallyn
2008-01-15 10:41       ` Miklos Szeredi
2008-01-15 10:53         ` A. C. Censi
     [not found]           ` <643ea2b10801150253i735d7342q73bf01f864d6167c-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-01-15 10:58             ` Miklos Szeredi
2008-01-15 13:47               ` Serge E. Hallyn
2008-01-16  9:43                 ` Miklos Szeredi

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