Google: sys-kernel/csql-kernel-6_1, sys-kernel/csql-kernel-6_6: security update to 18613.439.45

high Tenable Self-Hosted Container Security Plugin ID 472395

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: ext4: guard against EA inode refcount
underflow in xattr update syzkaller found a path where ext4_xattr_inode_update_ref() reads an EA inode
refcount that is already <= 0 and then applies ref_change (often -1). That lets the refcount underflow and
we proceed with a bogus value, triggering errors like: EXT4-fs error: EA inode <n> ref underflow:
ref_count=-1 ref_change=-1 EXT4-fs warning: ea_inode dec ref err=-117 Make the invariant explicit: if the
current refcount is non-positive, treat this as on-disk corruption, emit ext4_error_inode(), and fail the
operation with -EFSCORRUPTED instead of updating the refcount. Delete the WARN_ONCE() as negative
refcounts are now impossible; keep error reporting in ext4_error_inode(). This prevents the underflow and
the follow-on orphan/cleanup churn. (CVE-2025-40190)

Solution

Update the sys-kernel/csql-kernel-6_1 library and its related packages to version 18613.439.45 or later.

Plugin Details

Severity: High

ID: 472395

Version: Revision 1.1

Type: Local

Family: Google COS Security Checks

Published: 10/3/2026

Updated: 10/3/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.12

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2025-40190

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/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: 10/23/2025

Reference Information

CVE: CVE-2025-40190

Detections

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