From: "Michael S. Tsirkin" <mst@redhat.com>
To: netdev-bot+sinfo@kernel.org
Cc: linux-kernel@vger.kernel.org,
"Willem de Bruijn" <willemdebruijn.kernel@gmail.com>,
"Chris Arges" <carges@cloudflare.com>,
"Björn Töpel" <bjorn@kernel.org>, "Phil Sutter" <phil@nwl.cc>,
"Jason Wang" <jasowangio@gmail.com>,
"Eugenio Pérez" <eperezma@redhat.com>,
"Xuan Zhuo" <xuanzhuo@linux.alibaba.com>,
"Andrew Lunn" <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>,
"Eric Dumazet" <edumazet@kernel.org>,
"Jakub Kicinski" <kuba@kernel.org>,
"Paolo Abeni" <pabeni@redhat.com>,
netdev@vger.kernel.org, virtualization@lists.linux.dev,
"Max Krasnyansky" <maxk@qualcomm.com>,
"Rusty Russell" <rusty@rustcorp.com.au>
Subject: Re: [PATCH net v3 0/8] more virtio-net csum hardening
Date: Mon, 19 Oct 2026 08:21:52 -0400 [thread overview]
Message-ID: <20261019081218-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <179241175916.3290.3107334544259481724@kernel.org>
On Mon, Oct 19, 2026 at 12:09:19PM +0000, netdev-bot+sinfo@kernel.org wrote:
> Hi!
>
> This is an automated message. This series looks like a fix, but its
> commit messages seem to be missing some information:
>
> - Whether the issue was actually triggered, or is only theoretical
> (e.g. found by code inspection). If it was triggered please include
> the symptoms, like the stack trace or error messages.
>
> Please do not repost the series just to address the above. Instead,
> reply to this email with the missing information, so that reviewers
> can take it into account. If the series needs another revision for
> other reasons, please include the information in the commit messages
> then.
>
> The evaluation is done by an LLM so it may be wrong, if you think
> that is the case please reply and explain.
To answer the question, the virtio header is checked at input by
Eric's patch. I'm not aware of a way to bypass that, but given
the amount of pain and work this is causing, it seems prudent
to validate at several levels.
Patch 4 is a bugfix - i reproduced it easily but it is not normally
encountered in the field - the combination is non practical.
--
MST
next prev parent reply other threads:[~2026-10-19 12:22 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-19 12:03 [PATCH net v3 0/8] more virtio-net csum hardening Michael S. Tsirkin
2026-10-19 12:03 ` [PATCH net v3 1/8] net: account for ingress-resolved virtio net hdr state Michael S. Tsirkin
2026-10-19 12:03 ` [PATCH net v3 2/8] um: vector: honor virtio net hdr conversion failures Michael S. Tsirkin
2026-10-19 12:03 ` [PATCH net v3 3/8] um: vector: trim skbs before verifying the header Michael S. Tsirkin
2026-10-19 12:03 ` [PATCH net v3 4/8] virtio_net: parse tunnel csum_start little-endian Michael S. Tsirkin
2026-10-19 12:03 ` [PATCH net v3 5/8] net: resolve uncommon partial checksums at ingress Michael S. Tsirkin
2026-10-19 12:03 ` [PATCH net v3 6/8] net: add a sysctl to opt out of virtio net hdr checksum validation Michael S. Tsirkin
2026-10-19 14:19 ` Björn Töpel
2026-10-19 12:03 ` [PATCH net v3 7/8] net: add ip4_parse() Michael S. Tsirkin
2026-10-19 12:03 ` [PATCH net v3 8/8] virtio_net: cleanup protocol calculation Michael S. Tsirkin
2026-10-19 12:09 ` [PATCH net v3 0/8] more virtio-net csum hardening netdev-bot+sinfo
2026-10-19 12:21 ` Michael S. Tsirkin [this message]
2026-10-19 16:51 ` Chris Arges
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