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From: Christoph Hellwig <hch@infradead.org>
To: Christian Brauner <brauner@kernel.org>
Cc: Dave Chinner <david@fromorbit.com>,
	Matthew Wilcox <willy@infradead.org>,
	Christoph Hellwig <hch@infradead.org>,
	ksummit@lists.linux.dev, linux-fsdevel@vger.kernel.org
Subject: Re: [MAINTAINERS/KERNEL SUMMIT] Trust and maintenance of file systems
Date: Fri, 8 Sep 2023 01:34:22 -0700	[thread overview]
Message-ID: <ZPrcjnZ/zXMlL/X8@infradead.org> (raw)
In-Reply-To: <20230906-wildhasen-vorkehrungen-6ecb4ee012f1@brauner>

On Wed, Sep 06, 2023 at 05:06:29PM +0200, Christian Brauner wrote:
> So adding another RFE to libmount to add support for a global allowlist
> or denylist of filesystems and refuse to mount anything else might also
> be a good thing. Actually, might go and do this now.
> 
> So that we can slowly move userspace towards a smaller set of
> filesystems and then distros can start turning off more and more
> filesystems.

A global list is good, maintaining it in util-linux is stupid.  This
needs to be in the kernel as that's where we have all the data.  IMHO
a flag in struct file_system_type thast gets exposed in
/proc/filesystems and maybe even a flag to the new mount API to tell
"this is an automount" and refuse it it the trusted flag is not set
will work much better.  That way we can also easily upgrade/downgrade
the status of a file system as needed.

  parent reply	other threads:[~2023-09-08  8:34 UTC|newest]

Thread overview: 97+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-30 14:07 [MAINTAINERS/KERNEL SUMMIT] Trust and maintenance of file systems Christoph Hellwig
2023-09-05 23:06 ` Dave Chinner
2023-09-05 23:23   ` Matthew Wilcox
2023-09-06  2:09     ` Dave Chinner
2023-09-06 15:06       ` Christian Brauner
2023-09-06 15:59         ` Christian Brauner
2023-09-06 19:09         ` Geert Uytterhoeven
2023-09-08  8:34         ` Christoph Hellwig [this message]
2023-09-07  0:46     ` Bagas Sanjaya
2023-09-09 12:50     ` James Bottomley
2023-09-09 15:44       ` Matthew Wilcox
2023-09-10 19:51         ` James Bottomley
2023-09-10 20:19           ` Kent Overstreet
2023-09-10 21:15           ` Guenter Roeck
2023-09-11  3:10           ` Theodore Ts'o
2023-09-11 19:03             ` James Bottomley
2023-09-12  0:23               ` Dave Chinner
2023-09-12 16:52             ` H. Peter Anvin
2023-09-09 22:42       ` Kent Overstreet
2023-09-10  8:19         ` Geert Uytterhoeven
2023-09-10  8:37           ` Bernd Schubert
2023-09-10 16:35           ` Kent Overstreet
2023-09-10 17:26             ` Geert Uytterhoeven
2023-09-10 17:35               ` Kent Overstreet
2023-09-11  1:05         ` Dave Chinner
2023-09-11  1:29           ` Kent Overstreet
2023-09-11  2:07             ` Dave Chinner
2023-09-11 13:35               ` David Disseldorp
2023-09-11 17:45                 ` Bart Van Assche
2023-09-11 19:11                   ` David Disseldorp
2023-09-11 23:05                 ` Dave Chinner
2023-09-26  5:24           ` Eric W. Biederman
2023-09-08  8:55   ` Christoph Hellwig
2023-09-08 22:47     ` Dave Chinner
2023-09-06 22:32 ` Guenter Roeck
2023-09-06 22:54   ` Dave Chinner
2023-09-07  0:53     ` Bagas Sanjaya
2023-09-07  3:14       ` Dave Chinner
2023-09-07  1:53     ` Steven Rostedt
2023-09-07  2:22       ` Dave Chinner
2023-09-07  2:51         ` Steven Rostedt
2023-09-07  3:26           ` Matthew Wilcox
2023-09-07  8:04             ` Thorsten Leemhuis
2023-09-07 10:29               ` Christian Brauner
2023-09-07 11:18                 ` Thorsten Leemhuis
2023-09-07 12:04                   ` Matthew Wilcox
2023-09-07 12:57                   ` Guenter Roeck
2023-09-07 13:56                     ` Christian Brauner
2023-09-08  8:44                     ` Christoph Hellwig
2023-09-07  3:38           ` Dave Chinner
2023-09-07 11:18             ` Steven Rostedt
2023-09-13 16:43               ` Eric Sandeen
2023-09-13 16:58                 ` Guenter Roeck
2023-09-13 17:03                 ` Linus Torvalds
2023-09-15 22:48                   ` Dave Chinner
2023-09-16 19:44                     ` Steven Rostedt
2023-09-16 21:50                     ` James Bottomley
2023-09-17  1:40                       ` NeilBrown
2023-09-17 17:30                         ` Linus Torvalds
2023-09-17 18:09                           ` Linus Torvalds
2023-09-17 18:57                           ` Theodore Ts'o
2023-09-17 19:45                             ` Linus Torvalds
2023-09-18 11:14                               ` Jan Kara
2023-09-18 17:26                                 ` Linus Torvalds
2023-09-18 19:32                                   ` Jiri Kosina
2023-09-18 19:59                                     ` Linus Torvalds
2023-09-18 20:50                                       ` Theodore Ts'o
2023-09-18 22:48                                         ` Linus Torvalds
2023-09-18 20:33                                     ` H. Peter Anvin
2023-09-19  4:56                                   ` Dave Chinner
2023-09-25  9:43                                     ` Christoph Hellwig
2023-09-27 22:23                                 ` Dave Kleikamp
2023-09-19  1:15                           ` Dave Chinner
2023-09-19  5:17                             ` Matthew Wilcox
2023-09-19 16:34                               ` Theodore Ts'o
2023-09-19 16:45                                 ` Matthew Wilcox
2023-09-19 17:15                                   ` Linus Torvalds
2023-09-19 22:57                               ` Dave Chinner
2023-09-18 14:54                       ` Bill O'Donnell
2023-09-19  2:44                       ` Dave Chinner
2023-09-19 16:57                         ` James Bottomley
2023-09-25  9:38                   ` Christoph Hellwig
2023-09-25 14:14                     ` Dan Carpenter
2023-09-25 16:50                     ` Linus Torvalds
2023-09-07  9:48       ` Dan Carpenter
2023-09-07 11:04         ` Segher Boessenkool
2023-09-07 11:22           ` Steven Rostedt
2023-09-07 12:24             ` Segher Boessenkool
2023-09-07 11:23           ` Dan Carpenter
2023-09-07 12:30             ` Segher Boessenkool
2023-09-12  9:50               ` Richard Biener
2023-10-23  5:19                 ` Eric Gallager
2023-09-08  8:39       ` Christoph Hellwig
2023-09-08  8:38     ` Christoph Hellwig
2023-09-08 23:21       ` Dave Chinner
2023-09-07  0:48   ` Bagas Sanjaya
2023-09-07  3:07     ` Guenter Roeck

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