diff --git a/drivers/dax/dax.c b/drivers/dax/dax.c
index 19795eb35579bae72617377b07e91abbabff30e4..94036d92ed163662260948e3c5a85c5df6908ca6 100644
--- a/drivers/dax/dax.c
+++ b/drivers/dax/dax.c
@@ -591,7 +591,7 @@ static int dax_dev_huge_fault(struct vm_fault *vmf,
 		rc = __dax_dev_pud_fault(dax_dev, vmf);
 		break;
 	default:
-		return VM_FAULT_FALLBACK;
+		rc = VM_FAULT_SIGBUS;
 	}
 	srcu_read_unlock(&dax_srcu, id);