| To: | Jan Kara <jack@xxxxxxx> |
|---|---|
| Subject: | Re: [PATCH 2/4] xfs: Fix possible use-after-free with AIO |
| From: | Ben Myers <bpm@xxxxxxx> |
| Date: | Tue, 29 Jan 2013 18:56:56 -0600 |
| Cc: | Al Viro <viro@xxxxxxxxxxxxxxxxxx>, stable@xxxxxxxxxxxxxxx, xfs@xxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, linux-ext4@xxxxxxxxxxxxxxx, ocfs2-devel@xxxxxxxxxxxxxx |
| Delivered-to: | xfs@xxxxxxxxxxx |
| In-reply-to: | <1359502081-20240-3-git-send-email-jack@xxxxxxx> |
| References: | <1359502081-20240-1-git-send-email-jack@xxxxxxx> <1359502081-20240-3-git-send-email-jack@xxxxxxx> |
| User-agent: | Mutt/1.5.20 (2009-06-14) |
Hi Jan,
On Wed, Jan 30, 2013 at 12:27:59AM +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: xfs@xxxxxxxxxxx
> CC: Ben Myers <bpm@xxxxxxx>
> CC: stable@xxxxxxxxxxxxxxx
> Reviewed-by: Ben Myers <bpm@xxxxxxx>
> Acked-by: Jeff Moyer <jmoyer@xxxxxxxxxx>
> Signed-off-by: Jan Kara <jack@xxxxxxx>
We picked this up in the xfs tree. Sorry to keep you hanging.
Regards,
Ben
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