Google: sys-kernel/csql-kernel-6_1, sys-kernel/csql-kernel-6_6: security update to 18613.439.65

high Tenable Self-Hosted Container Security Plugin ID 471797

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: fix use-after-free due to
MST port state bypass syzbot reported[1] a use-after-free when deleting an expired fdb. It is due to a
race condition between learning still happening and a port being deleted, after all its fdbs have been
flushed. The port's state has been toggled to disabled so no learning should happen at that time, but if
we have MST enabled, it will bypass the port's state, that together with VLAN filtering disabled can lead
to fdb learning at a time when it shouldn't happen while the port is being deleted. VLAN filtering must be
disabled because we flush the port VLANs when it's being deleted which will stop learning. This fix adds a
check for the port's vlan group which is initialized to NULL when the port is getting deleted, that avoids
the port state bypass. When MST is enabled there would be a minimal new overhead in the fast-path because
the port's vlan group pointer is cache-hot. [1]
https://syzkaller.appspot.com/bug?extid=dd280197f0f7ab3917be (CVE-2025-40297)

Solution

Update the sys-kernel/csql-kernel-6_1 library and its related packages to version 18613.439.65 or later.

Plugin Details

Severity: High

ID: 471797

Version: Revision 1.2

Type: Local

Family: Google COS Security Checks

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: 6.9

Percentile: 97.14

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2025-40297

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: 12/8/2025

Reference Information

CVE: CVE-2025-40297

Detections

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