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Google: sys-kernel/csql-kernel-6_1, sys-kernel/lakitu-kernel-6_1: security update to 18244.582.42

high Tenable Self-Hosted Container Security Plugin ID 451254

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: netfilter: nf_tables: fix use-after-
 free in nf_tables_addchain() nf_tables_addchain() publishes the chain to table->chains via
 list_add_tail_rcu() (in nft_chain_add()) before registering hooks. If nf_tables_register_hook() then
 fails, the error path calls nft_chain_del() (list_del_rcu()) followed by nf_tables_chain_destroy() with no
 RCU grace period in between. This creates two use-after-free conditions: 1) Control-plane:
 nf_tables_dump_chains() traverses table->chains under rcu_read_lock(). A concurrent dump can still be
 walking the chain when the error path frees it. 2) Packet path: for NFPROTO_INET, nf_register_net_hook()
 briefly installs the IPv4 hook before IPv6 registration fails. Packets entering nft_do_chain() via the
 transient IPv4 hook can still be dereferencing chain->blob_gen_X when the error path frees the chain. Add
 synchronize_rcu() between nft_chain_del() and the chain destroy so that all RCU readers -- both dump
 threads and in-flight packet evaluation -- have finished before the chain is freed. (CVE-2026-23231)

Solution

Update the sys-kernel/csql-kernel-6_1 library and its related packages to version 18244.582.42 or later.

See Also

https://storage.googleapis.com/cos-oval-vulnerability-feed/cos-113.oval.xml.tar.gz

Plugin Details

Severity: High

ID: 451254

Version: Revision 1.1

Type: Local

Published: 10/1/2026

Updated: 10/1/2026

Risk Information

VPR

Risk Factor: High

Score: 7.9

Percentile: 99.35

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2026-23231

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 3/4/2026

Reference Information

CVE: CVE-2026-23231