Re: [PATCH] io_uring/kbuf: align legacy buffer add limit with MAX_BIDS_PER_BGID

Jens Axboe <[email protected]> Thu, 28 May 2026 08:03:14 -0600

Newsgroups	org.kernel.vger.io-uring
Message-ID	<177997699463.94267.12840010669165233758.b4-ty@b4>

On Thu, 28 May 2026 10:49:36 +0800, [email protected] wrote:
> io_provide_buffers_prep() accepts nbufs up to MAX_BIDS_PER_BGID, but
> io_add_buffers() stops when bl->nbufs reaches USHRT_MAX. This makes the
> effective add limit one lower than the validated limit.
> 
> Use MAX_BIDS_PER_BGID in the add-side boundary check so validation and
> execution use the same limit, and update the comment to refer to the
> actual limit constant.
> 
> [...]

Applied, thanks!

[1/1] io_uring/kbuf: align legacy buffer add limit with MAX_BIDS_PER_BGID
      commit: ca55f98d6ff1ecb31a07b668a8d105b4e0829c6a

Best regards,
-- 
Jens Axboe