Re: [patch 0/8] mount ownership and unprivileged mount syscall (v4)

From: Karel Zak
Date: Tue Apr 24 2007 - 20:05:40 EST


On Fri, Apr 20, 2007 at 12:25:32PM +0200, Miklos Szeredi wrote:
> The following extra security measures are taken for unprivileged
> mounts:
>
> - usermounts are limited by a sysctl tunable
> - force "nosuid,nodev" mount options on the created mount

The original userspace "user=" solution also implies the "noexec"
option by default (you can override the default by "exec" option).

It means the kernel based solution is not fully compatible ;-(

Karel

--
Karel Zak <kzak@xxxxxxxxxx>

Red Hat Czech s.r.o.
Purkynova 99/71, 612 45 Brno, Czech Republic
Reg.id: CZ27690016
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