linux-kernel - Re: [PATCH] VSOCK: fix Information Leak in virtio_transport

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Message-ID: <c90910d8-a4e4-4238-95e7-9a2d052cf52f@web.de>
Date: Tue, 5 Aug 2025 10:08:11 +0200
From: Markus Elfring <Markus.Elfring@....de>
To: Henry Martin <bsdhenryma@...cent.com>, virtualization@...ts.linux.dev,
 kvm@...r.kernel.org, netdev@...r.kernel.org
Cc: tcs_robot@...cent.com, LKML <linux-kernel@...r.kernel.org>,
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
 Eugenio Pérez <eperezma@...hat.com>,
 huntazhang@...cent.com, Jakub Kicinski <kuba@...nel.org>,
 Jason Wang <jasowang@...hat.com>, jitxie@...cent.com, landonsun@...cent.com,
 "Michael S. Tsirkin" <mst@...hat.com>, Paolo Abeni <pabeni@...hat.com>,
 Simon Horman <horms@...nel.org>, Stefano Garzarella <sgarzare@...hat.com>,
 Stefan Hajnoczi <stefanha@...hat.com>, Xuan Zhuo <xuanzhuo@...ux.alibaba.com>
Subject: Re: [PATCH] VSOCK: fix Information Leak in
 virtio_transport_shutdown()

> The `struct virtio_vsock_pkt_info` is declared on the stack but only
> partially initialized (only `op`, `flags`, and `vsk` are set)
…

See also once more:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?h=v6.16#n94

Would a summary phrase like “Prevent information leak in virtio_transport_shutdown()”
be nicer?

Regards,
Markus