diff --git a/sys/fs/procfs/procfs_map.c b/sys/fs/procfs/procfs_map.c
--- a/sys/fs/procfs/procfs_map.c
+++ b/sys/fs/procfs/procfs_map.c
@@ -84,7 +84,7 @@
 	struct vnode *vp;
 	char *fullpath, *freepath, *type;
 	struct ucred *cred;
-	vm_object_t obj, tobj, lobj;
+	vm_object_t lobj, nobj, obj, tobj;
 	int error, privateresident, ref_count, resident, shadow_count, flags;
 	vm_offset_t e_start, e_end;
 	vm_eflags_t e_eflags;
@@ -144,7 +144,8 @@
 		}
 		if (obj != NULL)
 			kern_proc_vmmap_resident(map, entry, &resident, &super);
-		for (tobj = obj; tobj != NULL; tobj = tobj->backing_object) {
+		for (tobj = obj; tobj != NULL; tobj = nobj) {
+			nobj = tobj->backing_object;
 			if (tobj != obj && tobj != lobj)
 				VM_OBJECT_RUNLOCK(tobj);
 		}
diff --git a/sys/kern/kern_proc.c b/sys/kern/kern_proc.c
--- a/sys/kern/kern_proc.c
+++ b/sys/kern/kern_proc.c
@@ -2505,7 +2505,7 @@
 	vm_map_entry_t entry, tmp_entry;
 	struct vattr va;
 	vm_map_t map;
-	vm_object_t obj, tobj, lobj;
+	vm_object_t lobj, nobj, obj, tobj;
 	char *fullpath, *freepath;
 	struct kinfo_vmentry *kve;
 	struct ucred *cred;
@@ -2551,8 +2551,8 @@
 			    &kve->kve_resident, &super);
 			if (super)
 				kve->kve_flags |= KVME_FLAG_SUPER;
-			for (tobj = obj; tobj != NULL;
-			    tobj = tobj->backing_object) {
+			for (tobj = obj; tobj != NULL; tobj = nobj) {
+				nobj = tobj->backing_object;
 				if (tobj != obj && tobj != lobj)
 					VM_OBJECT_RUNLOCK(tobj);
 			}