linux-kernel - Re: paride/pf.c: blk-mq use-after-free (kernel v5.0)

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Message-ID: <59cb035e-6880-de5a-33c5-d4db6ed910f4@kernel.dk>
Date:   Thu, 14 Mar 2019 17:43:26 -0600
From:   Jens Axboe <axboe@...nel.dk>
To:     Randy Dunlap <rdunlap@...radead.org>,
        linux-block <linux-block@...r.kernel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>, Tim Waugh <tim@...erelk.net>,
        linux-parport@...ts.infradead.org
Subject: Re: paride/pf.c: blk-mq use-after-free (kernel v5.0)

On 3/13/19 5:09 PM, Randy Dunlap wrote:
> On 3/11/19 6:34 PM, Randy Dunlap wrote:
>> On 3/11/19 6:25 PM, Randy Dunlap wrote:
>>> [Has this already been addressed/fixed?]>>
>>
>> Same bug occurs with paride/pcd.c driver.
> 
> This still happens (in blk-mq) in v5.0-11053-gebc551f2b8f9 of Mar. 12, 2019,
> around 4pm PT.  [caused by paride: pf.c and pcd.c)

I'll take a look at this, been busy with other stuff. How are you
reproducing this? I'm assuming you don't actually have any hardware :-)

-- 
Jens Axboe