This is a note to let you know that I've just added the patch titled
io_uring/net: use the correct msghdr union member in io_sendmsg_copy_hdr
to the 6.3-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
io_uring-net-use-the-correct-msghdr-union-member-in-.patch
and it can be found in the queue-6.3 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 97fa88debe02e86b51586bc5afb15ed61a2f463e
Author: Jens Axboe <axboe@xxxxxxxxx>
Date: Tue Jun 20 16:11:51 2023 -0600
io_uring/net: use the correct msghdr union member in io_sendmsg_copy_hdr
[ Upstream commit 26fed83653d0154704cadb7afc418f315c7ac1f0 ]
Rather than assign the user pointer to msghdr->msg_control, assign it
to msghdr->msg_control_user to make sparse happy. They are in a union
so the end result is the same, but let's avoid new sparse warnings and
squash this one.
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Closes: https://lore.kernel.org/oe-kbuild-all/202306210654.mDMcyMuB-lkp@xxxxxxxxx/
Fixes: cac9e4418f4c ("io_uring/net: save msghdr->msg_control for retries")
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/io_uring/net.c b/io_uring/net.c
index 49dc43d1d9fd5..2cf671cef0b61 100644
--- a/io_uring/net.c
+++ b/io_uring/net.c
@@ -203,7 +203,7 @@ static int io_sendmsg_copy_hdr(struct io_kiocb *req,
ret = sendmsg_copy_msghdr(&iomsg->msg, sr->umsg, sr->msg_flags,
&iomsg->free_iov);
/* save msg_control as sys_sendmsg() overwrites it */
- sr->msg_control = iomsg->msg.msg_control;
+ sr->msg_control = iomsg->msg.msg_control_user;
return ret;
}
@@ -302,7 +302,7 @@ int io_sendmsg(struct io_kiocb *req, unsigned int issue_flags)
if (req_has_async_data(req)) {
kmsg = req->async_data;
- kmsg->msg.msg_control = sr->msg_control;
+ kmsg->msg.msg_control_user = sr->msg_control;
} else {
ret = io_sendmsg_copy_hdr(req, &iomsg);
if (ret)
