Detections
Analytics

Google: sys-kernel/cchost-kernel-6_18, sys-kernel/csql-kernel-6_18, sys-kernel/lakitu-kernel-6_18, sys-kernel/lakitu-nc-kernel-6_18: security update to 20085.0.0

high Tenable Cloud Security Plugin ID 471487

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: mm/util: don't read __page_2 for
 order-1 folios in snapshot_page() snapshot_page() currently reads __page_2 after checking nr_pages > 1,
 but it should only do so when nr_pages > 2. If an order-1 folio is allocated at the end of a vmemmap
 section, __page_2 will not exist and reading it will cause a fault. During DLPAR memory remove on a 22 TB
 ppc64le LPAR, snapshot_page() oopsed on the page isolation path while reading an order-1 folio's __page_2
 from an adjacent absent section (unmapped vmemmap). Fix this to avoid reading memmap that doesn't exist
 (e.g., a vmemmap hole). (CVE-2026-80685)

Solution

Update the sys-kernel/cchost-kernel-6_18 library and its related packages to version 20085.0.0 or later.

See Also

https://storage.googleapis.com/cos-oval-vulnerability-feed/cos-138.oval.xml.tar.gz

Plugin Details

Severity: High

ID: 471487

Version: Revision 1.6

Type: Local

Published: 10/3/2026

Updated: 10/7/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.45

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: Medium

Base Score: 6.2

Temporal Score: 4.6

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

CVSS Score Source: CVE-2026-80685

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.2

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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: 8/28/2026

Reference Information

CVE: CVE-2026-80685