Detections
Analytics

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 19216.655.28

medium Tenable Self-Hosted Container Security Plugin ID 469033

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: vxlan: keep the last remote linked
 during FDB flush A non-nexthop FDB entry is expected to have at least one remote while it remains
 reachable through the FDB hash table. A filtered bulk flush violates this invariant when every remote
 matches: It unlinks the last remote in vxlan_fdb_dst_destroy() and only afterwards tells vxlan_flush() to
 destroy the parent FDB entry. An RCU reader can find the parent during this interval. first_remote_rcu()
 then applies list_entry_rcu() to the empty list head, producing an invalid remote pointer that the receive
 learning path can read from and write to. When a matching remote is the sole remaining remote, leave it
 linked and ask the caller to destroy the entire FDB entry. vxlan_fdb_destroy() keeps the remote attached
 while sending the deletion notification and removing the parent from the lookup structures.
 (CVE-2026-80838)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19216.655.28 or later.

See Also

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

Plugin Details

Severity: Medium

ID: 469033

Version: Revision 1.5

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: 4.3

Percentile: 53.43

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.1

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

CVSS Score Source: CVE-2026-80838

CVSS v3

Risk Factor: Medium

Base Score: 6.3

Temporal Score: 5.5

Vector: CVSS:3.0/AV:L/AC:H/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: 9/4/2026

Reference Information

CVE: CVE-2026-80838