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Subject: Re: [PATCH -nect RFC v2 0/2] block: fix uaf in bd_link_disk_holder()
To:     Yu Kuai <yukuai1@huaweicloud.com>, Christoph Hellwig <hch@lst.de>
Cc:     axboe@kernel.dk, willy@infradead.org, kch@nvidia.com,
        martin.petersen@oracle.com, johannes.thumshirn@wdc.com,
        ming.lei@redhat.com, linux-block@vger.kernel.org,
        linux-kernel@vger.kernel.org, yi.zhang@huawei.com,
        "yukuai (C)" <yukuai3@huawei.com>
References: <20221020132049.3947415-1-yukuai3@huawei.com>
 <20221020164712.GA14773@lst.de>
 <0ad09045-1012-e86b-41f2-a88d02e8f1ed@huaweicloud.com>
From:   Yu Kuai <yukuai1@huaweicloud.com>
Message-ID: <11d1397b-a1a1-5e8a-0443-183a3222c7c8@huaweicloud.com>
Date:   Wed, 26 Oct 2022 19:16:46 +0800
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Hi, Christoph

在 2022/10/21 11:15, Yu Kuai 写道:
> Hi,
> 
> 在 2022/10/21 0:47, Christoph Hellwig 写道:
>> As mentioned before I don't think we should make this even more
>> crufty in the block layer.  See the series I just sent to move it int
>> dm.
> 
> It seems we had some misunderstanding, the problem I tried to fix here
> should not just related to dm, but all the caller of
> bd_link_disk_holder().

Any suggestions about how to fix this problem?

Thanks,
Kuai
> 
> Thanks,
> Kuai
>>
>> .
>>
> 
> .
>