Google: sys-kernel/cchost-kernel-6_12, sys-kernel/csql-kernel-6_12: security update to 19506.120.52

medium Tenable Self-Hosted Container Security Plugin ID 469854

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: tracing: Add recursion protection in
kernel stack trace recording A bug was reported about an infinite recursion caused by tracing the rcu
events with the kernel stack trace trigger enabled. The stack trace code called back into RCU which then
called the stack trace again. Expand the ftrace recursion protection to add a set of bits to protect
events from recursion. Each bit represents the context that the event is in (normal, softirq, interrupt
and NMI). Have the stack trace code use the interrupt context to protect against recursion. Note, the bug
showed an issue in both the RCU code as well as the tracing stacktrace code. This only handles the tracing
stack trace side of the bug. The RCU fix will be handled separately. (CVE-2026-23138)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19506.120.52 or later.

Plugin Details

Severity: Medium

ID: 469854

Version: Revision 1.4

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: 23.49

Vendor

Vendor Severity: LOW

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-2026-23138

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: 2/14/2026

Reference Information

CVE: CVE-2026-23138

Detections

Analytics