diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c
index 8515054..0844331a 100644
--- a/drivers/scsi/hptiop.c
+++ b/drivers/scsi/hptiop.c
@@ -375,8 +375,9 @@
 		scp->result = SAM_STAT_CHECK_CONDITION;
 		memset(&scp->sense_buffer,
 				0, sizeof(scp->sense_buffer));
-		memcpy(&scp->sense_buffer,
-			&req->sg_list, le32_to_cpu(req->dataxfer_length));
+		memcpy(&scp->sense_buffer, &req->sg_list,
+				min(sizeof(scp->sense_buffer),
+					le32_to_cpu(req->dataxfer_length)));
 		break;
 
 	default: