From: Ming Lei <ming.lei@redhat.com>
To: Mike Christie <michael.christie@oracle.com>
Cc: linux-block@vger.kernel.org, axboe@kernel.dk
Subject: Re: [PATCH v2 1/2] ublk: Limit dev_id/ub_number values
Date: Fri, 13 Oct 2023 08:18:27 +0800 [thread overview]
Message-ID: <ZSiM04fMHOndfvYq@fedora> (raw)
In-Reply-To: <20231012150600.6198-2-michael.christie@oracle.com>
On Thu, Oct 12, 2023 at 10:05:59AM -0500, Mike Christie wrote:
> The dev_id/ub_number is used for the ublk dev's char device's minor
> number so it has to fit into MINORMASK. This patch adds checks to prevent
> userspace from passing a number that's too large and limits what can be
> allocated by the ublk_index_idr for the case where userspace has the
> kernel allocate the dev_id/ub_number.
>
> Signed-off-by: Mike Christie <michael.christie@oracle.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Thanks,
Ming
next prev parent reply other threads:[~2023-10-13 0:19 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-12 15:05 [PATCH v2 0/2] ublk: Allow more than 64 ublk devices Mike Christie
2023-10-12 15:05 ` [PATCH v2 1/2] ublk: Limit dev_id/ub_number values Mike Christie
2023-10-13 0:18 ` Ming Lei [this message]
2023-10-12 15:06 ` [PATCH v2 2/2] ublk: Make ublks_max configurable Mike Christie
2023-10-13 0:40 ` Ming Lei
2023-10-13 1:05 ` [PATCH v2 0/2] ublk: Allow more than 64 ublk devices Jens Axboe
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