fix: lpfc_send_rscn_event sends bigger buffer size

lpfc_send_rscn_event() allocates data for sizeof(struct
lpfc_rscn_event_header) + payload_len, but claims that the data has size
of sizeof(struct lpfc_els_event_header) + payload_len. That leads to
buffer overruns.

Signed-off-by: Ales Novak <[email protected]>
Signed-off-by: James Smart <[email protected]>
Reviewed-by: Hannes Reinecke <[email protected]>
Reviewed-by: Sebastian Herbszt <[email protected]>
Signed-off-by: James Bottomley <[email protected]>

drivers/scsi/lpfc/lpfc_els.c

@@ -5401,7 +5401,7 @@ lpfc_send_rscn_event(struct lpfc_vport *vport,
 
 	fc_host_post_vendor_event(shost,
 		fc_get_event_number(),
-		sizeof(struct lpfc_els_event_header) + payload_len,
+		sizeof(struct lpfc_rscn_event_header) + payload_len,
 		(char *)rscn_event_data,
 		LPFC_NL_VENDOR_ID);