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 19907.0.0

medium Tenable Self-Hosted Container Security Plugin ID 470301

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/mincore: handle non-swap entries
before !CONFIG_SWAP guard mincore_swap() also fields migration/hwpoison entries (and shmem swapin-error
entries), which can exist on !CONFIG_SWAP builds when CONFIG_MIGRATION or CONFIG_MEMORY_FAILURE is
enabled. The !IS_ENABLED(CONFIG_SWAP) guard ran before the non-swap-entry early return, so
mincore_pte_range() can spuriously WARN and report these pages nonresident on !CONFIG_SWAP kernels. Move
the guard below the non-swap-entry check so only true swap entries trip the WARN, and migration/hwpoison
entries take the existing "uptodate / non-shmem" path. (CVE-2026-53333)

Solution

Update the sys-kernel/cchost-kernel-6_18 library and its related packages to version 19907.0.0 or later.

Plugin Details

Severity: Medium

ID: 470301

Version: Revision 1.6

Type: Local

Family: Google COS Security Checks

Published: 10/3/2026

Updated: 10/6/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.75

Vendor

Vendor Severity: MEDIUM

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2026-53333

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: 7/1/2026

Reference Information

CVE: CVE-2026-53333

Detections

Analytics