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authorVenkatesh Srinivas <venkateshs@google.com>2014-02-25 02:13:32 +0400
committerNicholas Bellinger <nab@linux-iscsi.org>2014-02-25 04:19:43 +0400
commit7fe412d07d881020022a188b95c63a19b651a391 (patch)
treee2eeec574e7abfbfbed2a74094d1bf7a7d58490a /drivers/vhost
parent6f58c780e5a5b43a6d2121e0d43cdcba1d3cc5fc (diff)
downloadlinux-7fe412d07d881020022a188b95c63a19b651a391.tar.xz
vhost/scsi: Check LUN structure byte 0 is set to 1, per spec
The virtio spec requires byte 0 of the virtio-scsi LUN structure to be '1'. Signed-off-by: Venkatesh Srinivas <venkateshs@google.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/vhost')
-rw-r--r--drivers/vhost/scsi.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
index 0a025b8e2a12..e48d4a672580 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]);