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 19216.532.108

high Tenable Cloud Security Plugin ID 468638

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: geneve: require CAP_NET_ADMIN in the
device netns for changelink A tunnel changelink() operates on at most two netns, dev_net(dev) and the
sticky underlay netns geneve->net. They differ once the device is created in or moved to a netns other
than the one the request runs in. The rtnl changelink path checks CAP_NET_ADMIN only against dev_net(dev),
so a caller privileged there but not in geneve->net can rewrite a geneve device whose underlay lives in
geneve->net. geneve_changelink() applies the new configuration against geneve->net: geneve_link_config()
and the geneve_quiesce()/geneve_unquiesce() pair reopen the underlay sockets in that netns
(geneve_sock_add() uses geneve->net), so the same reasoning as the tunnel changelink series applies here.
Gate geneve_changelink() with rtnl_dev_link_net_capable(), at the top of the op before any attribute is
parsed, matching ipgre_changelink() and the rest of the "require CAP_NET_ADMIN in the device netns for
changelink" series. Found by 0sec automated security-research tooling (https://0sec.ai). (CVE-2026-68142)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19216.532.108 or later.

See Also

https://storage.googleapis.com/cos-oval-vulnerability-feed/cos-125.oval.xml.tar.gz

Plugin Details

Severity: High

ID: 468638

Version: Revision 1.8

Type: Local

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: 5

Percentile: 93.3

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-68142

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/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

Vulnerability Publication Date: 8/10/2026

Reference Information

CVE: CVE-2026-68142