Google: sys-kernel/cchost-kernel-6_12, sys-kernel/csql-kernel-6_12, sys-kernel/csql-kernel-6_6, sys-kernel/lakitu-kernel-6_12, sys-kernel/lakitu-kernel-6_6, sys-kernel/lakitu-nc-kernel-6_12, sys-kernel/lakitu-nc-kernel-6_6, sys-kernel/lakitu-vgpu-kernel-6_6: security update to 19216.739.5

medium Tenable Self-Hosted Container Security Plugin ID 474982

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- In the Linux kernel, the following vulnerability has been resolved: ipv6: addrconf: fix temp address
generation after prefix deprecation When a router temporarily deprecates an IPv6 prefix (either by sending
a Router Advertisement with Preferred Lifetime = 0 or by letting the lifetime expire) and later restores
it, the kernel permanently loses its ability to generate temporary privacy addresses (RFC 8981) for that
prefix. This happens because the address worker attempts to generate a replacement temporary address when
the current one nears expiration. As the base prefix is deprecated already, the generation fails after
marking the temporary address as already having spawned a replacement (ifp->regen_count++). When the
router eventually restores the prefix, the temporary address becomes active again. However, once it
naturally expires, the address worker sees this temporary address already tried to generate one and skips
the regeneration. Fix the issue by resetting the regen_count check of the latest temp address generated
for the prefix updated by the incoming RA. (CVE-2026-97472)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19216.739.5 or later.

Plugin Details

Severity: Medium

ID: 474982

Version: Revision 1.1

Type: Local

Family: Google COS Security Checks

Published: 10/16/2026

Updated: 10/16/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.63

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-97472

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 9/24/2026

Reference Information

CVE: CVE-2026-97472

Detections

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