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

Andrew Morton
2007-04-21T07:56:57Z

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?