Re: [PATCH] vhost/scsi: Check LUN structure byte 0 is set to 1, per spec

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Hi Venkatesh,

On Mon, 2014-02-24 at 14:13 -0800, Venkatesh Srinivas wrote:
> The virtio spec requires byte 0 of the virtio-scsi LUN structure
> to be '1'.
> 
> Signed-off-by: Venkatesh Srinivas <venkateshs@xxxxxxxxxx>
> ---
>   drivers/vhost/scsi.c | 6 ++++++
>   1 file changed, 6 insertions(+)
> 
> diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
> index 0a025b8..e48d4a6 100644
> --- a/drivers/vhost/scsi.c
> +++ b/drivers/vhost/scsi.c
> @@ -1001,6 +1001,12 @@ vhost_scsi_handle_vq(struct vhost_scsi *vs, struct vhost_virtqueue *vq)
>   			break;
>   		}
>   
> +		/* virtio-scsi spec requires byte 0 of the lun to be 1 */
> +		if (unlikely(v_req.lun[0] != 1)) {
> +			vhost_scsi_send_bad_target(vs, vq, head, out);
> +			continue;
> +		}
> +
>   		/* Extract the tpgt */
>   		target = v_req.lun[1];
>   		tpg = ACCESS_ONCE(vs_tpg[target]);

Applied to target-pending/master, and including in the next v3.14-rc
PULL request.

Thanks!

--nab

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