linux-kernel - Re: [PATCH] btrfs: use after free when closing devices

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Message-ID: <20150513162507.GR23255@twin.jikos.cz>
Date:	Wed, 13 May 2015 18:25:08 +0200
From:	David Sterba <dsterba@...e.cz>
To:	Sasha Levin <sasha.levin@...cle.com>
Cc:	clm@...com, jbacik@...com, linux-btrfs@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] btrfs: use after free when closing devices

On Tue, May 12, 2015 at 07:31:37PM -0400, Sasha Levin wrote:
> __btrfs_close_devices() would call_rcu to free the device, which is racy with
> list_for_each_entry() accessing the memory to retrieve the next device on the
> list.
> 
> Signed-off-by: Sasha Levin <sasha.levin@...cle.com>

Reviewed-by: David Sterba <dsterba@...e.cz>
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