Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
MIME-Version: 1.0
References: <20200608020557.31668-1-yanaijie@huawei.com> <20200608061502.GB17366@lst.de>
 <CA+icZUUks4oJGJLhiRLTJTzyNxfsT_TZQ12MMvBVLXSaR8t0zA@mail.gmail.com>
In-Reply-To: <CA+icZUUks4oJGJLhiRLTJTzyNxfsT_TZQ12MMvBVLXSaR8t0zA@mail.gmail.com>
Reply-To: sedat.dilek@gmail.com
From:   Sedat Dilek <sedat.dilek@gmail.com>
Date:   Mon, 8 Jun 2020 08:52:56 +0200
Message-ID: <CA+icZUXg2H7a4BVLpPXiw2D5Xzpy=Nxj8OJyw96giDvjNuBt+w@mail.gmail.com>
Subject: Re: [PATCH v4] block: Fix use-after-free in blkdev_get()
To:     Christoph Hellwig <hch@lst.de>
Cc:     Jason Yan <yanaijie@huawei.com>, viro@zeniv.linux.org.uk,
        axboe@kernel.dk, linux-fsdevel@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-block@vger.kernel.org,
        Ming Lei <ming.lei@redhat.com>, Jan Kara <jack@suse.cz>,
        Hulk Robot <hulkci@huawei.com>
Content-Type: text/plain; charset="UTF-8"
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Mon, Jun 8, 2020 at 8:47 AM Sedat Dilek <sedat.dilek@gmail.com> wrote:
>
> On Mon, Jun 8, 2020 at 8:18 AM Christoph Hellwig <hch@lst.de> wrote:
> >
> > Looks good,
> >
> > Reviewed-by: Christoph Hellwig <hch@lst.de>
> >
> > Can you dig into the history for a proper fixes tag?
>
> [ CC Dan ]
>
> Dan gave the hint for the Fixes: tag in reply to the first patch:
>
> > The Fixes tag is a good idea though:
> >
> > Fixes: 89e524c04fa9 ("loop: Fix mount(2) failure due to race with LOOP_SET_FD")
>
> > It broke last July.  Before that, we used to check if __blkdev_get()
> > failed before dereferencing "bdev".
>

Here is the Link.

https://www.spinics.net/lists/linux-block/msg54825.html

- Sedat -