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 19506.448.8

critical Tenable Self-Hosted Container Security Plugin ID 469442

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: net: ipv6: clear suppressed fib6 rule
result fib6_rule_suppress() drops a suppressed route with ip6_rt_put_flags(), but leaves res->rt6 pointing
at the released rt6_info. If no later rule supplies a replacement, fib6_rule_lookup() still sees res.rt6
and returns that stale dst to its caller. A suppressing rule can therefore leak a released route back to
rt6_lookup(), and the next put hits rcuref_put_slowpath() from dst_release(). Clear res->rt6 when
suppressing the route so suppressed lookups fall through to the null dst instead of reusing the released
one. (CVE-2026-74581)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19506.448.8 or later.

See Also

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

Plugin Details

Severity: Critical

ID: 469442

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: 4.9

Percentile: 58.19

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-2026-74581

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/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

Vulnerability Publication Date: 8/11/2026

Reference Information

CVE: CVE-2026-74581