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Re: [patch 8/8] allow unprivileged fuse mounts [message #18423 is a reply to message #18414]

Sat, 21 April 2007 07:55

akpm
Messages: 224
Registered: March 2007

Senior Member

On Fri, 20 Apr 2007 12:25:40 +0200 Miklos Szeredi <miklos@szeredi.hu> wrote:

> Use FS_SAFE for "fuse" fs type, but not for "fuseblk".
> 
> FUSE was designed from the beginning to be safe for unprivileged
> users.  This has also been verified in practice over many years.

How does FUSE do this?

There are obvious cases like crafting a filesystem which has setuid executables
or world-writeable device nodes or whatever.  I'm sure there are lots of other
cases.

Where is FUSE's implementation of all this protection described?
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[Message index]

		[patch 0/8] mount ownership and unprivileged mount syscall (v4) By: Miklos Szeredi on Fri, 20 April 2007 10:25
		[patch 1/8] add user mounts to the kernel By: Miklos Szeredi on Fri, 20 April 2007 10:25
		Re: [patch 1/8] add user mounts to the kernel By: akpm on Sat, 21 April 2007 07:55
		Re: [patch 1/8] add user mounts to the kernel By: Miklos Szeredi on Sat, 21 April 2007 08:06
		Re: [patch 1/8] add user mounts to the kernel By: ebiederm on Sat, 21 April 2007 13:14
		Re: [patch 1/8] add user mounts to the kernel By: Miklos Szeredi on Sun, 22 April 2007 07:02
		Re: [patch 1/8] add user mounts to the kernel By: ebiederm on Sun, 22 April 2007 07:43
		Re: [patch 1/8] add user mounts to the kernel By: Miklos Szeredi on Sun, 22 April 2007 08:05
		Re: [patch 1/8] add user mounts to the kernel By: Miklos Szeredi on Sun, 22 April 2007 16:22
		[patch 2/8] allow unprivileged umount By: Miklos Szeredi on Fri, 20 April 2007 10:25
		Re: [patch 2/8] allow unprivileged umount By: akpm on Sat, 21 April 2007 07:55
		Re: [patch 2/8] allow unprivileged umount By: hpa on Sat, 21 April 2007 08:01
		Re: [patch 2/8] allow unprivileged umount By: Miklos Szeredi on Sat, 21 April 2007 08:09
		Re: [patch 2/8] allow unprivileged umount By: akpm on Sat, 21 April 2007 08:36
		Re: [patch 2/8] allow unprivileged umount By: ebiederm on Sat, 21 April 2007 12:53
		Re: [patch 2/8] allow unprivileged umount By: Miklos Szeredi on Sun, 22 April 2007 06:47
		Re: [patch 2/8] allow unprivileged umount By: ebiederm on Sat, 21 April 2007 13:29
		Re: [patch 2/8] allow unprivileged umount By: Miklos Szeredi on Sun, 22 April 2007 07:05
		Re: [patch 2/8] allow unprivileged umount By: ebiederm on Sun, 22 April 2007 07:09
		Re: [patch 2/8] allow unprivileged umount By: Miklos Szeredi on Sun, 22 April 2007 07:32
		[patch 3/8] account user mounts By: Miklos Szeredi on Fri, 20 April 2007 10:25
		Re: [patch 3/8] account user mounts By: akpm on Sat, 21 April 2007 07:55
		Re: [patch 3/8] account user mounts By: ebiederm on Sat, 21 April 2007 13:37
		Re: [patch 3/8] account user mounts By: Miklos Szeredi on Sun, 22 April 2007 07:10
		Re: [patch 3/8] account user mounts By: ebiederm on Sun, 22 April 2007 07:49
		Re: [patch 3/8] account user mounts By: Miklos Szeredi on Sun, 22 April 2007 08:08
		[patch 4/8] propagate error values from clone_mnt By: Miklos Szeredi on Fri, 20 April 2007 10:25
		Re: [patch 4/8] propagate error values from clone_mnt By: ebiederm on Sat, 21 April 2007 13:40
		[patch 5/8] allow unprivileged bind mounts By: Miklos Szeredi on Fri, 20 April 2007 10:25
		Re: [patch 5/8] allow unprivileged bind mounts By: ebiederm on Sat, 21 April 2007 14:00
		Re: [patch 5/8] allow unprivileged bind mounts By: Miklos Szeredi on Sun, 22 April 2007 07:19
		[patch 6/8] put declaration of put_filesystem() in fs.h By: Miklos Szeredi on Fri, 20 April 2007 10:25
		[patch 7/8] allow unprivileged mounts By: Miklos Szeredi on Fri, 20 April 2007 10:25
		Re: [patch 7/8] allow unprivileged mounts By: akpm on Sat, 21 April 2007 07:55
		Re: [patch 7/8] allow unprivileged mounts By: ebiederm on Sat, 21 April 2007 14:10
		Re: [patch 7/8] allow unprivileged mounts By: Jan Engelhardt on Sat, 21 April 2007 15:43
		Re: [patch 7/8] allow unprivileged mounts By: Miklos Szeredi on Sat, 21 April 2007 08:13
		Re: [patch 7/8] allow unprivileged mounts By: Miklos Szeredi on Sat, 21 April 2007 08:23
		Re: [patch 7/8] allow unprivileged mounts By: Shaya Potter on Sun, 22 April 2007 00:46
		Re: [patch 7/8] allow unprivileged mounts By: Andi Kleen on Sat, 21 April 2007 22:06
		Re: [patch 7/8] allow unprivileged mounts By: ebiederm on Sat, 21 April 2007 16:57
		Re: [patch 7/8] allow unprivileged mounts By: Jan Engelhardt on Sat, 21 April 2007 17:10
		Re: [patch 7/8] allow unprivileged mounts By: ebiederm on Sat, 21 April 2007 21:00
		Re: [patch 7/8] allow unprivileged mounts By: Miklos Szeredi on Sun, 22 April 2007 08:19
		Re: [patch 7/8] allow unprivileged mounts By: ebiederm on Sat, 21 April 2007 21:33
		[patch 8/8] allow unprivileged fuse mounts By: Miklos Szeredi on Fri, 20 April 2007 10:25
		Re: [patch 8/8] allow unprivileged fuse mounts By: akpm on Sat, 21 April 2007 07:55
		Re: [patch 8/8] allow unprivileged fuse mounts By: Miklos Szeredi on Sat, 21 April 2007 08:16
		Re: [patch 8/8] allow unprivileged fuse mounts By: ebiederm on Sat, 21 April 2007 14:18
		Re: [patch 8/8] allow unprivileged fuse mounts By: Miklos Szeredi on Sun, 22 April 2007 07:22
		Re: [patch 0/8] mount ownership and unprivileged mount syscall (v4) By: ebiederm on Wed, 25 April 2007 01:04
		Re: [patch 0/8] mount ownership and unprivileged mount syscall (v4) By: Karel Zak on Wed, 25 April 2007 00:04
		Re: [patch 0/8] mount ownership and unprivileged mount syscall (v4) By: Miklos Szeredi on Wed, 25 April 2007 07:18
		Re: [patch 0/8] mount ownership and unprivileged mount syscall (v4) By: Karel Zak on Wed, 25 April 2007 09:23

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