io_uring: initialise msghdr::msg_ubuf

Initialise newly added ->msg_ubuf in io_recv() and io_send().

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/b8f9f263875a4a36e7f26cc5d55ebe315308f57d.1657643355.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/io_uring/net.c b/io_uring/net.c
index e61efa31c729c64b103177b9567f880c4d4272a1..bbc9c603641a5fd12db0cbe6c27e1759633e2126 100644 (file)
--- a/io_uring/net.c
+++ b/io_uring/net.c
@@ -294,6 +294,7 @@ int io_send(struct io_kiocb *req, unsigned int issue_flags)
        msg.msg_control = NULL;
        msg.msg_controllen = 0;
        msg.msg_namelen = 0;
+       msg.msg_ubuf = NULL;
 
        flags = sr->msg_flags;
        if (issue_flags & IO_URING_F_NONBLOCK)
@@ -783,6 +784,7 @@ retry_multishot:
        msg.msg_flags = 0;
        msg.msg_controllen = 0;
        msg.msg_iocb = NULL;
+       msg.msg_ubuf = NULL;
 
        flags = sr->msg_flags;
        if (force_nonblock)