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Date:   Wed, 22 Dec 2021 16:21:03 +0100
From:   Jan Kara <jack@suse.cz>
To:     "yukuai (C)" <yukuai3@huawei.com>
Cc:     Jan Kara <jack@suse.cz>,
        Michal =?iso-8859-1?Q?Koutn=FD?= <mkoutny@suse.com>,
        Paolo Valente <paolo.valente@linaro.org>,
        linux-block@vger.kernel.org, fvogt@suse.de, cgroups@vger.kernel.org
Subject: Re: Use after free with BFQ and cgroups
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On Thu 09-12-21 10:23:33, yukuai (C) wrote:
> We confirmed this by our reproducer through a simple patch:
> stop merging bfq_queues if their parents are different.

Can you please share your reproducer? I have prepared some patches which
I'd like to verify before posting... Thanks!

								Honza
-- 
Jan Kara <jack@suse.com>
SUSE Labs, CR