linux-kernel - Re: [PATCH] cgroup: fix invalid rcu dereference

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Message-ID: <20120914170147.GB17747@google.com>
Date:	Fri, 14 Sep 2012 10:01:47 -0700
From:	Tejun Heo <tj@...nel.org>
To:	Aristeu Rozanski <aris@...hat.com>
Cc:	Jiri Slaby <jslaby@...e.cz>, akpm@...ux-foundation.org,
	jirislaby@...il.com, linux-kernel@...r.kernel.org,
	lizefan@...wei.com
Subject: Re: [PATCH] cgroup: fix invalid rcu dereference

On Fri, Sep 14, 2012 at 09:27:38AM -0400, Aristeu Rozanski wrote:
> On Fri, Sep 14, 2012 at 11:40:12AM +0200, Jiri Slaby wrote:
> > Commit "device_cgroup: convert device_cgroup internally to policy +
> > exceptions" removed rcu locks which are needed in task_devcgroup
> > called in this chain: devcgroup_inode_mknod OR
> > __devcgroup_inode_permission -> __devcgroup_inode_permission ->
> > task_devcgroup -> task_subsys_state -> task_subsys_state_check.
> 
> ugh, missed that
> 
...
> thanks Jiri
> Acked-by: Aristeu Rozanski <aris@...hat.com>

How should this be routed?

Thanks.

-- 
tejun
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