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

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Message-ID: <7bac482b-7940-e6a1-6256-194bc3393063@redhat.com>
Date:   Sat, 25 Apr 2020 12:43:34 +0200
From:   Hans de Goede <hdegoede@...hat.com>
To:     Christoph Hellwig <hch@....de>, axboe@...nel.dk
Cc:     yuyufen@...wei.com, tj@...nel.org, jack@...e.cz,
        bvanassche@....org, tytso@....edu, 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

Hi,

On 4/25/20 9:59 AM, Christoph Hellwig wrote:
> Any more comments?  Are we ready to merge this now?

Merging this fine with me.

Regards,

Hans


> On Wed, Apr 22, 2020 at 09:38:42AM +0200, Christoph Hellwig wrote:
>> Hi all,
>>
>> 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
> ---end quoted text---
>