linux-ext4 - Re: [PATCH 1/4] ext4: Fix possible use-after-free with AIO

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Message-ID: <20130130035125.GB25006@thunk.org>
Date:	Tue, 29 Jan 2013 22:51:25 -0500
From:	Theodore Ts'o <tytso@....edu>
To:	Jan Kara <jack@...e.cz>
Cc:	Al Viro <viro@...IV.linux.org.uk>, linux-fsdevel@...r.kernel.org,
	xfs@....sgi.com, linux-ext4@...r.kernel.org,
	ocfs2-devel@....oracle.com, stable@...r.kernel.org
Subject: Re: [PATCH 1/4] ext4: Fix possible use-after-free with AIO

On Wed, Jan 30, 2013 at 12:27:58AM +0100, Jan Kara wrote:
> Running AIO is pinning inode in memory using file reference. Once AIO
> is completed using aio_complete(), file reference is put and inode can
> be freed from memory. So we have to be sure that calling aio_complete()
> is the last thing we do with the inode.
> 
> CC: linux-ext4@...r.kernel.org
> CC: "Theodore Ts'o" <tytso@....edu>
> CC: stable@...r.kernel.org
> Reviewed-by: Carlos Maiolino <cmaiolino@...hat.com>
> Acked-by: Jeff Moyer <jmoyer@...hat.com>
> Signed-off-by: Jan Kara <jack@...e.cz>

I've picked up the ext4 change.  Sorry for not getting to this sooner.

     	       	   		       	   - Ted

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