Messages in this thread | | | Subject | Re: [RFC][PATCH-2.4] Prevent mounting on ".." | From | Arjan van de Ven <> | Date | 29 Jun 2003 16:09:40 +0200 |
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On Sun, 2003-06-29 at 15:09, Willy TARREAU wrote: > Hi Al and Marcelo, > > while I was trying to get maximum restrictions on a chroot on 2.4.21-pre, > I found that it's always possible to mount a ramfs or a tmpfs on "..", > and then upload whatever I wanted in it. It's a shame because I was > trying to isolate network daemons inside empty, read-only file-systems, > and I discovered that this effort was worthless. To resume, imagine a > network daemon which does :
well... you need to be root to mount. If you're root you can break out of a chroot anyway.... [unhandled content-type:application/pgp-signature] | |