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SubjectRe: message queue limits
Marcelo Tosatti <marcelo.tosatti@cyclades.com> wrote:
>
> On Sun, Apr 11, 2004 at 10:48:28PM -0700, Ulrich Drepper wrote:
> > Something has to change in the way message queues are created.
> > Currently it is possible for an unprivileged user to exhaust all mq
> > slots so that only root can create a few more. Any other unprivileged
> > user has no change to create anything.
> >
> > I think it is necessary to create a per-user limit instead of a
> > system-wide limit.
>
> Actually, there is no infrastructure to account for per-UID limits right now AFAICS
> (please someone correct me) at ALL. We need to account and limit for per-user
>
> - pending signals
> - message queues

The stuff in kernel/user.c may be sufficient for this.
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