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 Self-Hosted Container Security Plugin ID 469026

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: tracing: Prevent out-of-bounds read in
glob matching String event fields are not necessarily NUL-terminated, so the filter predicate functions
(filter_pred_string(), filter_pred_strloc() and filter_pred_strrelloc()) pass the field length to the
regex match callbacks, and the length-aware matchers honour it. regex_match_glob() was the exception: it
ignored the length and called glob_match(), which scans the string until it hits a NUL byte. Some string
fields are not NUL-terminated. One example is the dynamic char array of the xfs_* namespace tracepoints,
which is copied without a trailing NUL. For such a field, glob matching reads past the end of the event
field, causing a KASAN slab-out-of-bounds read in glob_match(), reached via regex_match_glob() and
filter_match_preds() from the xfs_lookup tracepoint. Add a length-bounded glob_match_len() and use it from
regex_match_glob() so glob matching always stops at the field boundary. The matching loop is factored into
a shared helper so glob_match() keeps its behaviour. (CVE-2026-64299)

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: 469026

Version: Revision 1.5

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: High

Score: 7

Percentile: 98.16

Vendor

Vendor Severity: HIGH

CVSS v2

Risk Factor: Medium

Base Score: 6.2

Temporal Score: 4.6

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

CVSS Score Source: CVE-2026-64299

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.2

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/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-2026-64299

Detections

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