diff --git a/io_uring/net.c b/io_uring/net.c index 8c419c01a5dba..47ecb070194ba 100644 --- a/io_uring/net.c +++ b/io_uring/net.c @@ -183,6 +183,10 @@ static int io_setup_async_msg(struct io_kiocb *req, memcpy(async_msg, kmsg, sizeof(*kmsg)); if (async_msg->msg.msg_name) async_msg->msg.msg_name = &async_msg->addr; + + if ((req->flags & REQ_F_BUFFER_SELECT) && !async_msg->msg.msg_iter.nr_segs) + return -EAGAIN; + /* if were using fast_iov, set it to the new one */ if (iter_is_iovec(&kmsg->msg.msg_iter) && !kmsg->free_iov) { size_t fast_idx = iter_iov(&kmsg->msg.msg_iter) - kmsg->fast_iov; @@ -542,6 +546,7 @@ static int io_recvmsg_copy_hdr(struct io_kiocb *req, struct io_async_msghdr *iomsg) { iomsg->msg.msg_name = &iomsg->addr; + iomsg->msg.msg_iter.nr_segs = 0; #ifdef CONFIG_COMPAT if (req->ctx->compat)