linux-ext4 - Re: [PATCH 1/4] ext4: fix potential use after free during resize V2

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Message-ID: <20141202230656.GE13618@thunk.org>
Date:	Tue, 2 Dec 2014 18:06:56 -0500
From:	Theodore Ts'o <tytso@....edu>
To:	Dmitry Monakhov <dmonakhov@...nvz.org>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: [PATCH 1/4] ext4: fix potential use after free during resize V2

On Tue, Dec 02, 2014 at 03:00:51PM +0400, Dmitry Monakhov wrote:
> We need some sort of synchronization while updating ->s_group_desc
> because there are a lot of users which can access old ->s_group_desc
> array after it was released.
> 
> changes from V1:
>   - use RCU instead seqcount
> 
> Signed-off-by: Dmitry Monakhov <dmonakhov@...nvz.org>

Thanks, applied

					- Ted
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