linux-kernel - Re: [PATCH driver-core-next] kernfs: fix fill

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Message-ID: <20140928210906.GA8349@mtj.dyndns.org>
Date:	Sun, 28 Sep 2014 17:09:06 -0400
From:	Tejun Heo <tj@...nel.org>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	linux-kernel@...r.kernel.org,
	Alexander Viro <viro@...iv.linux.org.uk>
Subject: Re: [PATCH driver-core-next] kernfs: fix fill_super failure path

On Sun, Sep 28, 2014 at 01:12:54PM -0400, Tejun Heo wrote:
> After kernfs_fill_super() failure, the half-initialized sb still goes
> through kernfs_kill_sb() for destruction; unfortunately,
> kernfs_kill_sb() dereferences sb->s_root which may be NULL after
> fill_super failure triggering the following oops when such error
> condition is artificially injected.

Please ignore this patch.  This isn't enough.

Thanks.

-- 
tejun
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