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

high Tenable Cloud Security Plugin ID 466240

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: kernel/sys.c: fix the racy usage of
task_lock(tsk->group_leader) in sys_prlimit64() paths The usage of task_lock(tsk->group_leader) in
sys_prlimit64()->do_prlimit() path is very broken. sys_prlimit64() does get_task_struct(tsk) but this only
protects task_struct itself. If tsk != current and tsk is not a leader, this process can exit/exec and
task_lock(tsk->group_leader) may use the already freed task_struct. Another problem is that
sys_prlimit64() can race with mt-exec which changes ->group_leader. In this case do_prlimit() may take the
wrong lock, or (worse) ->group_leader may change between task_lock() and task_unlock(). Change
sys_prlimit64() to take tasklist_lock when necessary. This is not nice, but I don't see a better fix for
-stable. (CVE-2025-40201)

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: 466240

Version: Revision 1.1

Type: Local

Family: Google COS Security Checks

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.12

Vendor

Vendor Severity: LOW

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-2025-40201

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: 10/23/2025

Reference Information

CVE: CVE-2025-40201

Detections

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