--- mdadm-1.12.0/Create.c.s390	2005-06-13 20:04:13.000000000 -0400
+++ mdadm-1.12.0/Create.c	2007-01-31 13:48:23.000000000 -0500
@@ -28,6 +28,7 @@
  */
 
 #include "mdadm.h"
+#include <limits.h>
 #include	"md_u.h"
 #include	"md_p.h"
 
@@ -249,6 +250,15 @@
 			fprintf(stderr, Name ": no size and no drives given - aborting create.\n");
 			return 1;
 		}
+		if (level == -1) {
+			/* linear devices need to be within the limit of
+			 * INT_MAX or else they overflow math in the kernel
+			 */
+			if (maxsize > (unsigned long long)INT_MAX) {
+				fprintf(stderr, Name ": size of %s exceeds 0x%08x\n", maxdisc, INT_MAX);
+				return 1;
+			}
+		}
 		if (level > 0) {
 			/* size is meaningful */
 			if (minsize > 0x100000000ULL) {