diff --git a/kernel/fork.c b/kernel/fork.c
index 989dd01c61c1..5fdc0df905ee 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -498,6 +498,9 @@ static void vm_area_free_rcu_cb(struct rcu_head *head)
 {
 	struct vm_area_struct *vma = container_of(head, struct vm_area_struct,
 						  vm_rcu);
+
+	/* The vma should not be locked while being destroyed. */
+	VM_BUG_ON_VMA(rwsem_is_locked(&vma->lock), vma);
 	__vm_area_free(vma);
 }
 #endif