From: sashiko-bot@kernel.org
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: virtualization@lists.linux.dev, "Eugenio Perez" <eperezma@redhat.com>
Subject: Re: [PATCH net-next v2 5/7] net: add a sysctl to opt out of virtio net hdr checksum validation
Date: Fri, 16 Oct 2026 12:42:15 +0000 [thread overview]
Message-ID: <sashiko-outbox-174321@kernel.org> (raw)
In-Reply-To: <ad05a40681719a579691a1da6413f0dd7064f2a0.1792067836.git.mst@redhat.com>
> The ingress validation as implemented by the previous
> patch is stricter than what it replaced: GSO
> packets whose checksum metadata matches no transport header are
> dropped, and non-GSO ones get their checksum completed in place.
> Such packets used to pass with the metadata unvalidated,
> and with no overhead.
>
> I judge that this should not affect any deployments, but there is still
> some risk that it does. In case a deployment depends on them anyway,
> provide a per-netns switch to get the old behavior back:
>
> echo 0 > /proc/sys/net/core/virtio_net_hdr_csum_check
>
> The default is validating.
>
> Assisted-by: LLM
> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/cover.1792067836.git.mst@redhat.com?part=5
next prev parent reply other threads:[~2026-10-16 12:42 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-15 12:41 [PATCH net-next v2 0/7] more virtio-net csum hardening Michael S. Tsirkin
2026-10-15 12:41 ` [PATCH net-next v2 1/7] net: account for ingress-resolved virtio net hdr state Michael S. Tsirkin
2026-10-16 12:42 ` sashiko-bot
2026-10-15 12:41 ` [PATCH net-next v2 2/7] um: vector: honor virtio net hdr conversion failures Michael S. Tsirkin
2026-10-15 12:47 ` Johannes Berg
2026-10-15 12:52 ` Michael S. Tsirkin
2026-10-15 12:55 ` Johannes Berg
2026-10-16 9:37 ` Michael S. Tsirkin
2026-10-16 9:43 ` Michael S. Tsirkin
2026-10-16 9:44 ` Johannes Berg
2026-10-16 9:47 ` Michael S. Tsirkin
2026-10-16 9:49 ` Johannes Berg
2026-10-16 9:53 ` Michael S. Tsirkin
2026-10-15 17:19 ` Willem de Bruijn
2026-10-16 9:40 ` Michael S. Tsirkin
2026-10-16 12:42 ` sashiko-bot
2026-10-15 12:41 ` [PATCH net-next v2 3/7] um: vector: trim skbs before verifying the header Michael S. Tsirkin
2026-10-16 12:42 ` sashiko-bot
2026-10-15 12:41 ` [PATCH net-next v2 4/7] net: resolve uncommon partial checksums at ingress Michael S. Tsirkin
2026-10-15 17:43 ` Willem de Bruijn
2026-10-15 19:18 ` Chris Arges
2026-10-16 9:34 ` Michael S. Tsirkin
2026-10-16 9:36 ` Michael S. Tsirkin
2026-10-15 18:04 ` Willem de Bruijn
2026-10-15 18:07 ` Willem de Bruijn
2026-10-16 10:02 ` Michael S. Tsirkin
2026-10-16 12:42 ` sashiko-bot
2026-10-15 12:41 ` [PATCH net-next v2 5/7] net: add a sysctl to opt out of virtio net hdr checksum validation Michael S. Tsirkin
2026-10-15 17:50 ` Willem de Bruijn
2026-10-16 9:33 ` Michael S. Tsirkin
2026-10-16 15:30 ` Willem de Bruijn
2026-10-16 17:51 ` Michael S. Tsirkin
2026-10-16 18:19 ` Willem de Bruijn
2026-10-16 18:40 ` Michael S. Tsirkin
2026-10-17 1:09 ` Willem de Bruijn
2026-10-16 17:55 ` Michael S. Tsirkin
2026-10-16 18:17 ` Willem de Bruijn
2026-10-16 12:42 ` sashiko-bot [this message]
2026-10-15 12:41 ` [PATCH net-next v2 6/7] net: add ip4_parse() Michael S. Tsirkin
2026-10-15 18:51 ` Phil Sutter
2026-10-16 11:56 ` Björn Töpel
2026-10-16 12:42 ` sashiko-bot
2026-10-15 12:41 ` [PATCH net-next v2 7/7] virtio_net: cleanup protocol calculation Michael S. Tsirkin
2026-10-16 11:52 ` Björn Töpel
2026-10-16 12:42 ` sashiko-bot
2026-10-15 19:21 ` [PATCH net-next v2 0/7] more virtio-net csum hardening Chris Arges
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