Google: sys-kernel/cchost-kernel-6_12, sys-kernel/cchost-kernel-6_18, sys-kernel/csql-kernel-6_12, sys-kernel/csql-kernel-6_18, sys-kernel/lakitu-kernel-6_12, sys-kernel/lakitu-kernel-6_18, sys-kernel/lakitu-nc-kernel-6_12, sys-kernel/lakitu-nc-kernel-6_18: security update to 19907.0.0

high Tenable Self-Hosted Container Security Plugin ID 470953

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: timers/migration: Fix livelock in
tmigr_handle_remote_up() tmigr_handle_remote_cpu() skips timer_expire_remote() when cpu ==
smp_processor_id(), assuming the local softirq path already handled this CPU's timers. This assumption is
wrong because jiffies can advance after the handling of the CPU's global timers in
run_timer_base(BASE_GLOBAL) and before tmigr_handle_remote() evaluates the expiry times. As a consequence
a timer which expires after the CPU local timer wheel advanced and becomes expired in the remote handling
is ignored and the callback is never invoked and removed from the timer wheel. What's worse is that
fetch_next_timer_interrupt_remote() keeps reporting it as expired, and the event is re-queued with expires
== now on each iteration. The goto-again loop spins indefinitely. Fix this by calling
timer_expire_remote() unconditionally. That's minimal overhead for the common case as __run_timer_base()
returns immediately if there is nothing to expire in the local wheel. [ tglx: Amend change log and add a
comment ] (CVE-2026-53180)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19907.0.0 or later.

Plugin Details

Severity: High

ID: 470953

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: 23.58

Vendor

Vendor Severity: HIGH

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-53180

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/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: 6/25/2026

Reference Information

CVE: CVE-2026-53180

Detections

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