Auditing io_uring [LWN.net]
The io_uring subsystem, first introduced in 2019, has quickly become the leading way to perform high-bandwidth, asynchronous I/O. It has drawn the attention of many developers, including, more recently, those who are focused more on security than performance. Now some members of the security community are lamenting a perceived lack of thought about security support in io_uring, and are trying to remedy that shortcoming by adding audit and Linux security module support there. That process is proving difficult, and has raised the prospect of an unpleasant fallback solution.