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 475239

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: bridge: use option bits for
CFM/MRP frame handlers CFM and MRP register a global br_frame_type whose hlist_node is linked into the
per-bridge frame_type_list when the first MEP/MRP instance is created. Enabling the protocol on multiple
bridges therefore inserts the same node into multiple lists. Unregistering it on one bridge then corrupts
list state belonging to another. These handlers can only be installed once per bridge, and they are
uncommon. Track their per-bridge enable state with net_bridge option bits, which already live on the Rx
hot cache line, and dispatch the matching handler directly from the receive path. Check both bits together
first as an unlikely case. Remove the generic frame_type_list and br_frame_type helpers, which have had no
other users since CFM and MRP were added. That shrinks struct net_bridge by 8 bytes and drops the list
walk from the fast path. When neither protocol is compiled in, BR_CFM_MRP_OPTS is 0 and the compiler
prunes the branch. (CVE-2026-97615)

Solution

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

See Also

https://storage.googleapis.com/cos-oval-vulnerability-feed/cos-133.oval.xml.tar.gz

Plugin Details

Severity: High

ID: 475239

Version: Revision 1.1

Type: Local

Published: 10/16/2026

Updated: 10/16/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.36

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2026-97615

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

Vulnerability Publication Date: 9/25/2026

Reference Information

CVE: CVE-2026-97615