Detections
Analytics

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 19506.120.97

medium Tenable Self-Hosted Container Security Plugin ID 469160

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: sched_ext: Disable preemption between
 scx_claim_exit() and kicking helper work scx_claim_exit() atomically sets exit_kind, which prevents
 scx_error() from triggering further error handling. After claiming exit, the caller must kick the helper
 kthread work which initiates bypass mode and teardown. If the calling task gets preempted between claiming
 exit and kicking the helper work, and the BPF scheduler fails to schedule it back (since error handling is
 now disabled), the helper work is never queued, bypass mode never activates, tasks stop being dispatched,
 and the system wedges. Disable preemption across scx_claim_exit() and the subsequent work kicking in all
 callers - scx_disable() and scx_vexit(). Add lockdep_assert_preemption_disabled() to scx_claim_exit() to
 enforce the requirement. (CVE-2026-43482)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19506.120.97 or later.

See Also

https://storage.googleapis.com/cos-oval-vulnerability-feed/cos-129.oval.xml.tar.gz

Plugin Details

Severity: Medium

ID: 469160

Version: Revision 1.4

Type: Local

Published: 10/3/2026

Updated: 10/5/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.8

Percentile: 96.61

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-2026-43482

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: 4/30/2026

Reference Information

CVE: CVE-2026-43482