scsi: csiostor: fix NULL pointer dereference in csio_vport_set_state()

[ Upstream commit fe35a40e675473eb65f2f5462b82770f324b5689 ]

Assign fc_vport to ln->fc_vport before calling csio_fcoe_alloc_vnp() to
avoid a NULL pointer dereference in csio_vport_set_state().

ln->fc_vport is dereferenced in csio_vport_set_state().

Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/scsi/csiostor/csio_attr.c b/drivers/scsi/csiostor/csio_attr.c
index 8a00403..9bd2bd8 100644 (file)
--- a/drivers/scsi/csiostor/csio_attr.c
+++ b/drivers/scsi/csiostor/csio_attr.c
@@ -594,12 +594,12 @@ csio_vport_create(struct fc_vport *fc_vport, bool disable)
        }
 
        fc_vport_set_state(fc_vport, FC_VPORT_INITIALIZING);
+       ln->fc_vport = fc_vport;
 
        if (csio_fcoe_alloc_vnp(hw, ln))
                goto error;
 
        *(struct csio_lnode **)fc_vport->dd_data = ln;
-       ln->fc_vport = fc_vport;
        if (!fc_vport->node_name)
                fc_vport->node_name = wwn_to_u64(csio_ln_wwnn(ln));
        if (!fc_vport->port_name)