Google: sys-kernel/cchost-kernel-6_12, sys-kernel/csql-kernel-6_12: security update to 19506.0.66

medium Tenable Cloud Security Plugin ID 469506

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: crypto: virtio - Add spinlock
protection with virtqueue notification When VM boots with one virtio-crypto PCI device and builtin
backend, run openssl benchmark command with multiple processes, such as openssl speed -evp aes-128-cbc
-engine afalg -seconds 10 -multi 32 openssl processes will hangup and there is error reported like this:
virtio_crypto virtio0: dataq.0:id 3 is not a head! It seems that the data virtqueue need protection when
it is handled for virtio done notification. If the spinlock protection is added in virtcrypto_done_task(),
openssl benchmark with multiple processes works well. (CVE-2026-23229)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19506.0.66 or later.

Plugin Details

Severity: Medium

ID: 469506

Version: Revision 1.3

Type: Local

Family: Google COS Security Checks

Published: 10/3/2026

Updated: 10/5/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.52

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-2026-23229

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: 2/18/2026

Reference Information

CVE: CVE-2026-23229

Detections

Analytics