linux-kernel - Re: [PATCH] null_blk: fix use-after-free problem

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Message-ID: <55AFEF56.9090001@fb.com>
Date:	Wed, 22 Jul 2015 13:30:30 -0600
From:	Jens Axboe <axboe@...com>
To:	Mike Krinkin <krinkin.m.u@...il.com>, <akinobu.mita@...il.com>
CC:	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] null_blk: fix use-after-free problem

On 07/19/2015 12:53 AM, Mike Krinkin wrote:
> end_cmd finishes request associated with nullb_cmd struct, so we
> should save pointer to request_queue in a local variable before
> calling end_cmd.
>
> The problem was causes general protection fault with slab poisoning
> enabled.

Thanks, applied.

-- 
Jens Axboe

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