linux-kernel - Re: [RFC 4/5] user namespaces: allow killing tasks in your own or child userns

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Message-ID: <20110102143920.GA1560@mail.hallyn.com>
Date:	Sun, 2 Jan 2011 14:39:20 +0000
From:	"Serge E. Hallyn" <serge@...lyn.com>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	"Serge E. Hallyn" <serge@...lyn.com>,
	LSM <linux-security-module@...r.kernel.org>,
	James Morris <jmorris@...ei.org>,
	Kees Cook <kees.cook@...onical.com>,
	containers@...ts.linux-foundation.org,
	kernel list <linux-kernel@...r.kernel.org>,
	Alexey Dobriyan <adobriyan@...il.com>,
	Michael Kerrisk <mtk.manpages@...il.com>
Subject: Re: [RFC 4/5] user namespaces: allow killing tasks in your own or
 child userns

Quoting Eric W. Biederman (ebiederm@...ssion.com):
> > +static inline int kill_ok_by_cred(struct task_struct *t)
> > +{
> > +	struct cred *cred = current_cred();
> > +	struct cred *tcred = __task_cred(t);

(Note, here and elsewhere these should have been const.  My next posting,
with some new patches, will have that fix)

thanks,
-serge
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