Re: [patch 8/8] allow unprivileged fuse mounts

[Andrew Morton]

On Fri, 20 Apr 2007 12:25:40 +0200 Miklos Szeredi <miklos@xxxxxxxxxx> 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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