A security notice published on October 2, 2026 reports fixes in the Linux kernel's NFS, IPv6 networking, and Netfilter components.
Notice USN-8864-1, published on October 2, 2026, says that several Linux kernel flaws could be used by an attacker to compromise a system. The update fixes issues in the NFS server daemon, IPv6 networking, and Netfilter. The text cites CVE-2025-38724, CVE-2026-53131, and CVE-2026-53221.
The Ubuntu security feed content was automatically translated. To check the original notice and verify its details and update guidance, consult USN-8864-1 through the official Ubuntu Security channel; also confirm which packages and systems are affected before taking action.