Messages in this thread Patch in this message |  | | Date | Mon, 24 Feb 2014 14:13:32 -0800 | From | Venkatesh Srinivas <> | Subject | [PATCH] vhost/scsi: Check LUN structure byte 0 is set to 1, per spec |
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The virtio spec requires byte 0 of the virtio-scsi LUN structure to be '1'.
Signed-off-by: Venkatesh Srinivas <venkateshs@google.com> --- 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]); -- 1.8.5.3
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