On Fri,  5 Sep 2025 23:58:44 +0900
"Masami Hiramatsu (Google)" [off-list ref] wrote:

+static void wprobe_unregister_trigger(char *glob,
+				      struct event_trigger_data *data,
+				      struct trace_event_file *file)
+{
+	lockdep_assert_held(&event_mutex);
+
+	if (wprobe_trigger_exist_same(data, file)) {
+		list_del_rcu(&data->list);
+		trace_event_trigger_enable_disable(file, 0);
+		update_cond_flag(file);
+	}
+
+	if (data && data->ops->free)
+		data->ops->free(data);
+}

This function is wrongly free the passed trigger_data instead of
trigger_data on the event. The passed @data is a dummy data to
find the actual data from @file.
Thanks Jinchao to find it!

Thank you,

-- 
Masami Hiramatsu (Google) [off-list ref]