--- linux/drivers/scsi/scsi_scan.c	2005-01-03 20:52:55.000000000 +1000
+++ linux/drivers/scsi/scsi_scan.c2610bk5pl	2005-01-08 11:18:25.066656384 +1000
@@ -940,6 +940,7 @@
 			   (sdev->host->unchecked_isa_dma ? __GFP_DMA : 0));
 	if (!lun_data)
 		goto out_release_request;
+	memset(lun_data, 0, length);
 
 	scsi_cmd[0] = REPORT_LUNS;