Google: sys-kernel/cchost-kernel-6_12, sys-kernel/cchost-kernel-6_18, sys-kernel/csql-kernel-6_12, sys-kernel/csql-kernel-6_18, sys-kernel/lakitu-kernel-6_12, sys-kernel/lakitu-kernel-6_18, sys-kernel/lakitu-nc-kernel-6_12, sys-kernel/lakitu-nc-kernel-6_18: security update to 19999.44.106

high Tenable Cloud Security Plugin ID 475472

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: ipv6: flowlabel: cap duplicate leases
per socket ipv6_flowlabel_get() allocates an ipv6_fl_socklist entry for every successful GET. The recheck
path for a compatible existing flowlabel links another lease without applying any lease admission check.
Repeated GET requests for one shareable label can therefore grow a socket's lease list without bound.
Reject a new unprivileged lease once the socket already holds FL_MAX_PER_SOCK leases. Check this on the
shared recheck path so reuse of a globally interned label, including the fl_intern() collision path, is
covered as well. New-label admission remains under the existing mem_check() policy. Use
capable(CAP_NET_ADMIN) rather than ns_capable(), matching mem_check(). An unprivileged user must not
bypass the cap by creating a user namespace and a netns where they have CAP_NET_ADMIN, which would still
consume host memory. Check the capability only when the socket reaches the limit, so successful
unprivileged GET requests below the cap do not generate a capability audit. Do the admission check before
updating linger and expires so a rejected GET does not refresh the shared label, matching the existing
socket-list allocation failure path. (CVE-2026-97597)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19999.44.106 or later.

Plugin Details

Severity: High

ID: 475472

Version: Revision 1.1

Type: Local

Family: Google COS Security Checks

Published: 10/16/2026

Updated: 10/16/2026

Risk Information

VPR

Risk Factor: Medium

Score: 6.3

Percentile: 96.31

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2026-97597

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.2

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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: 9/25/2026

Reference Information

CVE: CVE-2026-97597

Detections

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