diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c
index 3cc90bfe24ed..02c2c21ff635 100644
--- a/kernel/bpf/helpers.c
+++ b/kernel/bpf/helpers.c
@@ -1516,10 +1516,24 @@ out:
 	 * To avoid these issues, punt to workqueue context when we are in a
 	 * timer callback.
 	 */
-	if (this_cpu_read(hrtimer_running))
+	if (this_cpu_read(hrtimer_running)) {
 		queue_work(system_unbound_wq, &t->cb.delete_work);
-	else
+		return;
+	}
+
+	if (IS_ENABLED(CONFIG_PREEMPT_RT)) {
+		/* If the timer is running on other CPU, also use a kworker to
+		 * wait for the completion of the timer instead of trying to
+		 * acquire a sleepable lock in hrtimer_cancel() to wait for its
+		 * completion.
+		 */
+		if (hrtimer_try_to_cancel(&t->timer) >= 0)
+			kfree_rcu(t, cb.rcu);
+		else
+			queue_work(system_unbound_wq, &t->cb.delete_work);
+	} else {
 		bpf_timer_delete_work(&t->cb.delete_work);
+	}
 }
 
 BPF_CALL_2(bpf_kptr_xchg, void *, map_value, void *, ptr)