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

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Message-ID: <ca7973dc-3be5-e482-900a-1018a0762b93@kernel.dk>
Date:   Thu, 16 Apr 2020 09:30:07 -0600
From:   Jens Axboe <axboe@...nel.dk>
To:     Christoph Hellwig <hch@....de>
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)

On 4/16/20 9:29 AM, Christoph Hellwig wrote:
> On Thu, Apr 16, 2020 at 09:29:13AM -0600, Jens Axboe wrote:
>> On 4/16/20 1:15 AM, 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.
>>
>> Applied, thanks.
> 
> Please hold back, we still have a major issues with it.  I will resend
> a fixed version tomorrow.

OK, will do.

-- 
Jens Axboe