diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 934d6f198b07..ddab19e5bd63 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -3344,11 +3344,17 @@ retry_pids:
 
 		/* Initialise new per-VMA NUMAB state. */
 		if (!vma->numab_state) {
-			vma->numab_state = kzalloc(sizeof(struct vma_numab_state),
-				GFP_KERNEL);
-			if (!vma->numab_state)
+			struct vma_numab_state *ptr;
+
+			ptr = kzalloc(sizeof(*ptr), GFP_KERNEL);
+			if (!ptr)
 				continue;
 
+			if (cmpxchg(&vma->numab_state, NULL, ptr)) {
+				kfree(ptr);
+				continue;
+			}
+
 			vma->numab_state->start_scan_seq = mm->numa_scan_seq;
 
 			vma->numab_state->next_scan = now +