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: 6f02527729bd3 ("io_uring/net: Allow to do vectorized send") Cc: stable@vger.kernel.org Signed-off-by: Pavel Begunkov --- io_uring/net.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/io_uring/net.c b/io_uring/net.c index 7ebfd51b84de..3e6112beea88 100644 --- a/io_uring/net.c +++ b/io_uring/net.c @@ -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; } -- 2.53.0