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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

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

--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html