# USN-8851-2: Linux kernel (Raspberry Pi) vulnerabilities

Publisher-attributed story with a reviewed brief or permitted publisher paragraph. The original publisher is responsible for the linked reporting.

- Publisher: Ubuntu Security
- Category: Vulnerabilities
- Original publication time: 2026-10-02T06:30:35Z
- First observed by NexusTechWire: 2026-10-02T07:50:40Z
- Original source: https://ubuntu.com/security/notices/USN-8851-2
- NexusTechWire record: https://nexustechwire.com/news/news-885078c704d56fed25be

## The brief

Canonical's USN-8851-2 supplies fixes for Ubuntu 18.04 LTS systems using the Raspberry Pi 5.4 kernel. It addresses vulnerabilities in NFS server code, IPv6 networking and Netfilter that Canonical says could permit system compromise. The Ubuntu Pro update includes linux-image-5.4.0-1147-raspi version 5.4.0-1147.160~18.04.1. A reboot completes installation, and the changed kernel ABI requires rebuilding installed third-party kernel modules.

AI-assisted NexusTechWire summary, checked against the linked source on 2026-10-02T07:59:08Z. Not independent reporting.

Read the full original: [Ubuntu Security](https://ubuntu.com/security/notices/USN-8851-2)

This record does not reproduce the complete article or represent independent confirmation of every source claim.