Google: sys-kernel/csql-kernel-6_6, sys-kernel/lakitu-kernel-6_6, sys-kernel/lakitu-nc-kernel-6_6, sys-kernel/lakitu-vgpu-kernel-6_6: security update to 18867.381.161

high Tenable Self-Hosted Container Security Plugin ID 467371

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: exit: prevent preemption of oopsing
TASK_DEAD task When an already-exiting task oopses, make_task_dead() currently calls do_task_dead() with
preemption enabled. That is forbidden: do_task_dead() calls __schedule(), which has a comment saying
"WARNING: must be called with preemption disabled!". If an oopsing task is preempted in do_task_dead(),
between becoming TASK_DEAD and entering the scheduler explicitly, bad things happen: finish_task_switch()
assumes that once the scheduler has switched away from a TASK_DEAD task, the task can never run again and
its stack is no longer needed; but that assumption apparently doesn't hold if the dead task was preempted
(the SM_PREEMPT case). This means that the scheduler ends up repeatedly dropping references on the dead
task's stack, which can lead to use-after-free or double-free of the entire task stack; in other words,
two tasks can end up running on the same stack, resulting in various kinds of memory corruption. (This
does not just affect "recursively oopsing" tasks; it is enough to oops once during task exit, for example
in a file_operations::release handler) (CVE-2026-46173)

Solution

Update the sys-kernel/csql-kernel-6_6 library and its related packages to version 18867.381.161 or later.

Plugin Details

Severity: High

ID: 467371

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: 6.9

Percentile: 96.61

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-2026-46173

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: 5/26/2026

Reference Information

CVE: CVE-2026-46173

Detections

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