Commit c36e28be authored by Pavel Begunkov's avatar Pavel Begunkov Committed by Jens Axboe
Browse files

io_uring/net: reject SEND_VECTORIZED when unsupported 



IORING_SEND_VECTORIZED with registered buffers is not implemented but
could be. Don't silently ignore the flag in this case but reject it with
an error. It only affects sendzc as normal sends don't support
registered buffers.

Fixes: 6f025277 ("io_uring/net: Allow to do vectorized send")
Cc: stable@vger.kernel.org
Signed-off-by: default avatarPavel Begunkov <asml.silence@gmail.com>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 0ed2e8bf

io_uring/net.c

+2 −0
Original line number Diff line number Diff line
@@ -375,6 +375,8 @@ static int io_send_setup(struct io_kiocb *req, const struct io_uring_sqe *sqe) 
		kmsg->msg.msg_namelen = addr_len;

	}

	if (sr->flags & IORING_RECVSEND_FIXED_BUF) {

		if (sr->flags & IORING_SEND_VECTORIZED)

			return -EINVAL;

		req->flags |= REQ_F_IMPORT_BUFFER;

		return 0;

	}