linux-kernel - Re: bdi: fix use-after-free for dev

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Message-ID: <20200507074423.GA1285373@T590>
Date:   Thu, 7 May 2020 15:44:23 +0800
From:   Ming Lei <ming.lei@...hat.com>
To:     Christoph Hellwig <hch@....de>
Cc:     axboe@...nel.dk, yuyufen@...wei.com, tj@...nel.org, jack@...e.cz,
        bvanassche@....org, tytso@....edu, hdegoede@...hat.com,
        gregkh@...uxfoundation.org, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: bdi: fix use-after-free for dev_name(bdi->dev) v3 (resend)

On Mon, May 04, 2020 at 02:47:52PM +0200, Christoph Hellwig wrote:
> Hi Jens,
> 
> can you pick up this series?
> 
> the first three patches are my take on the proposal from Yufen Yu
> to fix the use after free of the device name of the bdi device.
> 
> The rest is vaguely related cleanups.
> 
> Changes since v2:
>  - switch vboxsf to a shorter bdi name
> 
> Changes since v1:
>  - use a static dev_name buffer inside struct backing_dev_info
> 

Looks fine:

Reviewed-by: Ming Lei <ming.lei@...hat.com>

-- 
Ming