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From: Shinichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Subject: Re: [PATCH v3 08/38] zbd: avoid zone buffer overrun
Date: Fri, 22 Jan 2021 04:02:11 +0000
Message-ID: <20210122040208.xsvxwr5mcq37nz4u@shindev.dhcp.fujisawa.hgst.com>
References: <20210106215739.264524-1-dmitry.fomichev@wdc.com>
 <20210106215739.264524-9-dmitry.fomichev@wdc.com>
In-Reply-To: <20210106215739.264524-9-dmitry.fomichev@wdc.com>
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To: Dmitry Fomichev <Dmitry.Fomichev@wdc.com>
Cc: Jens Axboe <axboe@kernel.dk>, "fio@vger.kernel.org" <fio@vger.kernel.org>, Aravind Ramesh <Aravind.Ramesh@wdc.com>, Bart Van Assche <bvanassche@acm.org>, Naohiro Aota <Naohiro.Aota@wdc.com>, Niklas Cassel <Niklas.Cassel@wdc.com>, Damien Le Moal <Damien.LeMoal@wdc.com>
List-ID: <fio@vger.kernel.org>

On Jan 07, 2021 / 06:57, Dmitry Fomichev wrote:
> If the total number of zones on a drive is calculated to a value that
> is less than the number of zones it can actually report, zone info
> buffer can be overrun. This may happen not only due to drive firmware
> problems, but also because of underlying software incorrectly
> reporting zoned device capacity.
>=20
> Fix this by more carefully setting zone report size.
>=20
> Signed-off-by: Dmitry Fomichev <dmitry.fomichev@wdc.com>

Looks good to me.

Reviewed-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>

--=20
Best Regards,
Shin'ichiro Kawasaki=