linux-kernel - Re: [PATCH] SELinux: Fix possible NULL pointer dereference in selinux_inode

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Message-ID: <1389298851.15186.57.camel@dhcp-9-2-203-236.watson.ibm.com>
Date:	Thu, 09 Jan 2014 15:20:51 -0500
From:	Mimi Zohar <zohar@...ux.vnet.ibm.com>
To:	Stephen Smalley <sds@...ho.nsa.gov>
Cc:	Eric Paris <eparis@...hat.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	LKML <linux-kernel@...r.kernel.org>,
	James Morris <james.l.morris@...cle.com>,
	Paul Moore <paul@...l-moore.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	stable <stable@...r.kernel.org>, selinux@...ho.nsa.gov,
	linux-security-module@...r.kernel.org
Subject: Re: [PATCH] SELinux: Fix possible NULL pointer dereference in
 selinux_inode_permission()

On Thu, 2014-01-09 at 11:10 -0500, Stephen Smalley wrote: 
> On 01/09/2014 11:05 AM, Eric Paris wrote:
> > [adding lsm and selinux]
> > 
> > Am I just crazy, or was this bug discussed (and obviously not fixed)
> > some time ago?
> > 
> > VFS can still use inodes after security_inode_free_security() was
> > called...
> 
> I didn't know that was the case; originally when we added the hook it
> was not possible.   I have seen a Red Hat bugzilla report about it,
> but no upstream discussion.

For those of us that don't have access to the RH bugzilla, can someone
please summarize the problem?

thanks,

Mimi



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