Google: sys-kernel/cchost-kernel-6_12, sys-kernel/csql-kernel-6_12, sys-kernel/lakitu-kernel-6_12, sys-kernel/lakitu-nc-kernel-6_12: security update to 19506.299.3

critical Tenable Self-Hosted Container Security Plugin ID 469020

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: KVM: arm64: vgic-its: Reject restored
DTE with out-of-range num_eventid_bits Userspace can restore an ITS Device Table Entry whose Size field
encodes more EventID bits than the virtual ITS supports. The live MAPD path rejects that state, but
vgic_its_restore_dte() accepts it and stores the out-of-range value in dev->num_eventid_bits. Reject
restored DTEs with num_eventid_bits > VITS_TYPER_IDBITS before allocating the device. This mirrors the
MAPD check and prevents the restored state from reaching vgic_its_restore_itt(), where the unchecked value
can be converted into an oversized scan_its_table() range. (CVE-2026-64106)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19506.299.3 or later.

Plugin Details

Severity: Critical

ID: 469020

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: Medium

Score: 4.8

Percentile: 57.83

Vendor

Vendor Severity: HIGH

CVSS v2

Risk Factor: Medium

Base Score: 6.6

Temporal Score: 4.9

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

CVSS Score Source: CVE-2026-64106

CVSS v3

Risk Factor: Critical

Base Score: 9

Temporal Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/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: 6/4/2026

Reference Information

CVE: CVE-2026-64106

Detections

Analytics