On Mon, 23.05.11 10:17, Roger Leigh ([email protected]) wrote:

> > > Do we want to allow users to create files under /run, or reserve it
> > > solely for system use?  Right now, on Debian, it's not user-writable,
> > > with the exception of /run/lock (which can be a separate tmpfs mount,
> > > and we're looking at adding a lock group like other distros use to make
> > > this not globally writable) and /run/shm (which again is a separate
> > > tmpfs).
> > 
> > Dude, you want to weaken the access restrictions on /run? Uh, no! If we
> > did that then everybody could just go there are and create /run/dbus and
> > subsequently D-Bus couldn't be started anymore. 
> 
> Having /run/user/$user writable by the user does not imply having /run
> writable by the user in any case (other than indirectly via DoS using
> all blocks/inodes).  But in general, I think that having any part of
> /run user-writable is a legitimate concern--this wasn't part of its
> original remit, and it /does/ have implications that need careful
> consideration.

Well, I certainly always had in mind creating /run/user, when we pushed
for /run.

If the quota problem is such a big issue for you and you do not want to
wait for a kernel fix introducing quota for tmpfs, and are willing to
ignore the security issues with /dev/shm and /tmp on tmpfs, then nothing
stops you from making /run/user a tmpfs of its own.

Lennart

-- 
Lennart Poettering - Red Hat, Inc.
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