From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Coywolf Qi Hunt <qiyong@fc-cn.com>
Cc: linux-kernel@vger.kernel.org, dhommel@gmail.com
Subject: Re: syscall: sys_promote
Date: Fri, 26 Aug 2005 16:19:17 +0100 [thread overview]
Message-ID: <1125069558.4958.83.camel@localhost.localdomain> (raw)
In-Reply-To: <20050826110226.GA5184@localhost.localdomain>
On Gwe, 2005-08-26 at 19:02 +0800, Coywolf Qi Hunt wrote:
> > 3) admins can `promote' a suspect process instead of killing it.
> >
> > Is it also generally useful in practice? Thoughts?
The locking is wrong. At the moment the entire kernel assumes that a
process uid is not changed by anyone else. After you've implemented uid
locking/refcounting for tasks you can add the syscall but until then its
not a good idea. I don't think its a good idea anyway - selinux can do
far more useful things.
next prev parent reply other threads:[~2005-08-26 14:52 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-08-26 9:25 syscall: sys_promote Coywolf Qi Hunt
2005-08-26 11:02 ` Coywolf Qi Hunt
2005-08-26 15:19 ` Alan Cox [this message]
2005-08-29 3:54 ` qiyong
2005-08-29 12:29 ` Alan Cox
2005-08-29 16:15 ` Trond Myklebust
[not found] ` <a36005b505082908415d9202d5@mail.gmail.com>
2005-08-31 7:53 ` Qi Yong
2005-08-31 7:58 ` Qi Yong
2005-08-26 12:47 ` Erik Mouw
2005-08-29 3:55 ` qiyong
2005-08-29 7:53 ` Bernd Petrovitsch
2005-08-29 8:16 ` Coywolf Qi Hunt
2005-08-29 8:53 ` Bernd Petrovitsch
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