NACK: [SRU][N:gcp][PATCH 0/1] Backport "netkit: Add option for scrubbing skb meta data" to 6.8

[Tim Whisonant]

On Wed, Dec 11, 2024 at 06:12:02PM -0800, Tim Whisonant wrote:
> BugLink: https://bugs.launchpad.net/bugs/2091184
> 
> SRU Justification:
> 
> [Impact]
> 
> * GCP states that they would like to leverage NetKit for better
>   networking performance, and that recent fixes that have landed in
>   mainline are necessary to avoid bugs when using Cilium.
> 
> [Fix]
> 
> * 83134ef46093 netkit: Add option for scrubbing skb meta data
>   This was a clean cherry-pick onto 6.8.
> 
> [Test Plan]
> 
> * Boot-tested the changes in GCP environment on amd64 hardware.
> 
> [Where problems could occur]
> 
> * When running Cilium with NetKit in per-endpoint-routes mode, network
>   policy misclassifies traffic. This mode is used in the case of
>   GKE/EKS/AKS.
> 
> [Other Info]
> 
> * Changes are limited to the NetKit driver. Risk is considered low as
>   the changes are limited and apply cleanly from upstream.
> 
> Daniel Borkmann (1):
>   netkit: Add option for scrubbing skb meta data
> 
>  drivers/net/netkit.c         | 68 +++++++++++++++++++++++++++++-------
>  include/uapi/linux/if_link.h | 15 ++++++++
>  2 files changed, 70 insertions(+), 13 deletions(-)
> 
> -- 
> 2.43.0
>