Google: sys-kernel/csql-kernel-6_1, sys-kernel/lakitu-kernel-6_1: security update to 18080.0.0

medium Tenable Self-Hosted Container Security Plugin ID 450506

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: cpu/hotplug: Don't offline the last
non-isolated CPU If a system has isolated CPUs via the "isolcpus=" command line parameter, then an attempt
to offline the last housekeeping CPU will result in a WARN_ON() when rebuilding the scheduler domains and
a subsequent panic due to and unhandled empty CPU mas in partition_sched_domains_locked().
cpuset_hotplug_workfn() rebuild_sched_domains_locked() ndoms = generate_sched_domains(&doms, &attr);
cpumask_and(doms[0], top_cpuset.effective_cpus, housekeeping_cpumask(HK_FLAG_DOMAIN)); Thus results in an
empty CPU mask which triggers the warning and then the subsequent crash: WARNING: CPU: 4 PID: 80 at
kernel/sched/topology.c:2366 build_sched_domains+0x120c/0x1408 Call trace:
build_sched_domains+0x120c/0x1408 partition_sched_domains_locked+0x234/0x880
rebuild_sched_domains_locked+0x37c/0x798 rebuild_sched_domains+0x30/0x58 cpuset_hotplug_workfn+0x2a8/0x930
Unable to handle kernel paging request at virtual address fffe80027ab37080
partition_sched_domains_locked+0x318/0x880 rebuild_sched_domains_locked+0x37c/0x798 Aside of the resulting
crash, it does not make any sense to offline the last last housekeeping CPU. Prevent this by masking out
the non-housekeeping CPUs when selecting a target CPU for initiating the CPU unplug operation via the work
queue. (CVE-2023-52831)

Solution

Update the sys-kernel/csql-kernel-6_1 library and its related packages to version 18080.0.0 or later.

Plugin Details

Severity: Medium

ID: 450506

Version: Revision 1.1

Type: Local

Family: Google COS Security Checks

Published: 10/1/2026

Updated: 10/1/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

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-2023-52831

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: 12/14/2023

Reference Information

CVE: CVE-2023-52831

Detections

Analytics