Subject: Re: Mount permissions
To: =?iso-8859-1?Q?Jarom=EDr_Dole=3Fek?= <>
From: Manuel Bouyer <>
List: tech-kern
Date: 01/27/2000 16:45:22
On Thu, Jan 27, 2000 at 02:29:08PM +0100, Jaromír Dole?ek wrote:
> [...]
> How about umapfs - isn't it possible to create e.g. root shell just by
> creating your-user suid shell and mouting an umapfs which would map
> your user to root ?

It was possible, I fixed it some time ago.

> Are there any possible problems with other stacked filesystems ?

If there are no uid translations it should not be possible.

Manuel Bouyer, LIP6, Universite Paris VI. 
     {Net,Free}BSD: 22 ans d'experience feront toujours la difference