linux-kernel - Re: [PATCH 12/19] CacheFiles: Permit a process's create SID to be overridden

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 15 Nov 2006 11:22:55 -0500 (EST)
From:	James Morris <jmorris@...ei.org>
To:	David Howells <dhowells@...hat.com>
cc:	Linus Torvalds <torvalds@...l.org>, Andrew Morton <akpm@...l.org>,
	Stephen Smalley <sds@...ho.nsa.gov>,
	trond.myklebust@....uio.no, selinux@...ho.nsa.gov,
	linux-kernel@...r.kernel.org, aviro@...hat.com, steved@...hat.com
Subject: Re: [PATCH 12/19] CacheFiles: Permit a process's create SID to be
 overridden 

On Wed, 15 Nov 2006, David Howells wrote:

> James Morris <jmorris@...ei.org> wrote:
> 
> > The ability to set this needs to be mediated via MAC policy.
> 
> Something like this, you mean?

Yes, although perhaps writing to tsec->kern_create_sid or similar, which 
then overrides tsec->create_sid if set.  Also need 
/proc/pid/attr/kern_fscreate as a read only node.


> +	error = task_has_perm(current, current, PROCESS__SETFSCREATE);

I wonder if we also need 'relabelto' and 'relabelfrom' permissions, to 
control which labels are being used.



- James
-- 
James Morris
<jmorris@...ei.org>
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/