Index: sys/vm/vm_phys.c
===================================================================
--- sys/vm/vm_phys.c
+++ sys/vm/vm_phys.c
@@ -1451,7 +1451,8 @@
 				 * (without overflow in pa_end calculation)
 				 * and fits within the segment.
 				 */
-				if (pa_end < pa || pa_end > seg->end)
+				if (pa_end < pa ||
+				    pa < seg->start || seg->end < pa_end)
 					continue;
 
 				/*