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 19506.299.82

high Tenable Cloud Security Plugin ID 469548

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: bpf: Validate BTF repeated field
counts before expansion btf_parse_struct_metas() walks user-supplied BTF during BPF_BTF_LOAD, and
btf_repeat_fields() expands repeatable fields from array elements into the fixed BTF_FIELDS_MAX scratch
array used by btf_parse_fields(). The remaining-capacity check performs the expanded field count
calculation in u32. A malformed BTF can wrap that calculation, causing the check to pass even when the
expanded field count exceeds the scratch array capacity. The following memcpy() can then write past the
end of the array. Use checked addition and multiplication before copying repeated fields and reject
impossible counts. (CVE-2026-64354)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19506.299.82 or later.

Plugin Details

Severity: High

ID: 469548

Version: Revision 1.6

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: 96.61

Vendor

Vendor Severity: HIGH

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-2026-64354

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: 7/23/2026

Reference Information

CVE: CVE-2026-64354

Detections

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