From: "Michael S. Tsirkin" <mst@redhat.com>
To: fuguancheng <fuguancheng@bytedance.com>
Cc: jasowang@redhat.com, stefanha@redhat.com, sgarzare@redhat.com,
davem@davemloft.net, kuba@kernel.org,
arseny.krasnov@kaspersky.com, andraprs@amazon.com,
colin.king@canonical.com, kvm@vger.kernel.org,
virtualization@lists.linux-foundation.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/4] VSOCK DRIVER: Add multi-cid support for guest
Date: Mon, 2 Aug 2021 16:10:48 -0400 [thread overview]
Message-ID: <20210802160815-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <20210802120720.547894-2-fuguancheng@bytedance.com>
On Mon, Aug 02, 2021 at 08:07:17PM +0800, fuguancheng wrote:
> diff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h
> index c998860d7bbc..a3ea99f6fc7f 100644
> --- a/include/uapi/linux/vhost.h
> +++ b/include/uapi/linux/vhost.h
> @@ -17,6 +17,13 @@
>
> #define VHOST_FILE_UNBIND -1
>
> +/* structs used for hypervisors to send cid info. */
> +
> +struct multi_cid_message {
> + u32 number_cid;
> + u64 *cid;
> +};
> +
> /* ioctls */
>
> #define VHOST_VIRTIO 0xAF
In this case, a kernel pointer in a UAPI struct is suspicious.
So is padding after number_cid.
--
MST
WARNING: multiple messages have this Message-ID (diff)
From: "Michael S. Tsirkin" <mst@redhat.com>
To: fuguancheng <fuguancheng@bytedance.com>
Cc: andraprs@amazon.com, kvm@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org,
virtualization@lists.linux-foundation.org, stefanha@redhat.com,
colin.king@canonical.com, kuba@kernel.org,
arseny.krasnov@kaspersky.com, davem@davemloft.net
Subject: Re: [PATCH 1/4] VSOCK DRIVER: Add multi-cid support for guest
Date: Mon, 2 Aug 2021 16:10:48 -0400 [thread overview]
Message-ID: <20210802160815-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <20210802120720.547894-2-fuguancheng@bytedance.com>
On Mon, Aug 02, 2021 at 08:07:17PM +0800, fuguancheng wrote:
> diff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h
> index c998860d7bbc..a3ea99f6fc7f 100644
> --- a/include/uapi/linux/vhost.h
> +++ b/include/uapi/linux/vhost.h
> @@ -17,6 +17,13 @@
>
> #define VHOST_FILE_UNBIND -1
>
> +/* structs used for hypervisors to send cid info. */
> +
> +struct multi_cid_message {
> + u32 number_cid;
> + u64 *cid;
> +};
> +
> /* ioctls */
>
> #define VHOST_VIRTIO 0xAF
In this case, a kernel pointer in a UAPI struct is suspicious.
So is padding after number_cid.
--
MST
_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization
next prev parent reply other threads:[~2021-08-02 20:10 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-02 12:07 [PATCH 0/4] Add multi-cid support for vsock driver fuguancheng
2021-08-02 12:07 ` [PATCH 1/4] VSOCK DRIVER: Add multi-cid support for guest fuguancheng
2021-08-02 20:10 ` Michael S. Tsirkin [this message]
2021-08-02 20:10 ` Michael S. Tsirkin
2021-08-02 20:11 ` Michael S. Tsirkin
2021-08-02 20:11 ` Michael S. Tsirkin
2021-08-02 20:20 ` Michael S. Tsirkin
2021-08-02 20:20 ` Michael S. Tsirkin
2021-08-02 21:53 ` kernel test robot
2021-08-02 21:53 ` kernel test robot
2021-08-02 12:07 ` [PATCH 2/4] VSOCK DRIVER: support communication using additional guest cid fuguancheng
2021-08-02 20:13 ` Michael S. Tsirkin
2021-08-02 20:13 ` Michael S. Tsirkin
2021-08-02 12:07 ` [PATCH 3/4] VSOCK DRIVER: support specifying additional cids for host fuguancheng
2021-08-02 15:56 ` kernel test robot
2021-08-02 15:56 ` kernel test robot
2021-08-02 17:50 ` kernel test robot
2021-08-02 17:50 ` kernel test robot
2021-08-02 12:07 ` [PATCH 4/4] VSOCK DRIVER: support communication using host additional cids fuguancheng
2021-08-02 13:42 ` [PATCH 0/4] Add multi-cid support for vsock driver Stefano Garzarella
2021-08-02 13:42 ` Stefano Garzarella
[not found] ` <CAKv9dH5KbN25m8_Wmej9WXgJWheRV5S-tyPCdjUHHEFoWk-V1w@mail.gmail.com>
2021-08-04 15:23 ` [External] " Stefano Garzarella
2021-08-04 15:23 ` Stefano Garzarella
2021-08-02 20:21 ` Michael S. Tsirkin
2021-08-02 20:21 ` Michael S. Tsirkin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210802160815-mutt-send-email-mst@kernel.org \
--to=mst@redhat.com \
--cc=andraprs@amazon.com \
--cc=arseny.krasnov@kaspersky.com \
--cc=colin.king@canonical.com \
--cc=davem@davemloft.net \
--cc=fuguancheng@bytedance.com \
--cc=jasowang@redhat.com \
--cc=kuba@kernel.org \
--cc=kvm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=sgarzare@redhat.com \
--cc=stefanha@redhat.com \
--cc=virtualization@lists.linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.