Google: sys-kernel/cchost-kernel-6_12, sys-kernel/csql-kernel-6_12, sys-kernel/csql-kernel-6_6, sys-kernel/lakitu-kernel-6_12, sys-kernel/lakitu-kernel-6_6, sys-kernel/lakitu-nc-kernel-6_12, sys-kernel/lakitu-nc-kernel-6_6, sys-kernel/lakitu-vgpu-kernel-6_6: security update to 19216.395.31

high Tenable Cloud Security Plugin ID 468985

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: padata: Fix pd UAF once and for all
There is a race condition/UAF in padata_reorder that goes back to the initial commit. A reference count is
taken at the start of the process in padata_do_parallel, and released at the end in padata_serial_worker.
This reference count is (and only is) required for padata_replace to function correctly. If padata_replace
is never called then there is no issue. In the function padata_reorder which serves as the core of padata,
as soon as padata is added to queue->serial.list, and the associated spin lock released, that padata may
be processed and the reference count on pd would go away. Fix this by getting the next padata before the
squeue->serial lock is released. In order to make this possible, simplify padata_reorder by only calling
it once the next padata arrives. (CVE-2025-38584)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19216.395.31 or later.

Plugin Details

Severity: High

ID: 468985

Version: Revision 1.7

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: 4.9

Percentile: 57.29

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2025-38584

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Reference Information

CVE: CVE-2025-38584

Detections

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