Google: sys-kernel/csql-kernel-6_1, sys-kernel/csql-kernel-6_6, sys-kernel/lakitu-kernel-6_1, sys-kernel/lakitu-kernel-6_6, sys-kernel/lakitu-nc-kernel-6_6, sys-kernel/lakitu-vgpu-kernel-6_6, sys-kernel/tpusev-kernel-6_6: security update to 18613.675.37

high Tenable Self-Hosted Container Security Plugin ID 466583

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: userfaultfd: gate must_wait
writability check on pte_present() userfaultfd_must_wait() and userfaultfd_huge_must_wait() read the PTE
without taking the page table lock and then apply pte_write() / huge_pte_write() to it. Those accessors
decode bits from the present encoding only; on a swap or migration entry they read the offset bits that
happen to share the same position and return an undefined result. The intent of the check is "is this
fault still WP-blocked?". A non-marker swap entry means the page is in transit -- the userfault context
the original fault delivered against is no longer the same, and the swap-in or migration completion path
will re-deliver a fresh fault if userspace still needs to handle it. Worst case under the current code the
garbage write bit says "wait", and the thread stays asleep until a UFFDIO_WAKE that may never arrive. Gate
the writability check on pte_present() so the lockless re-check only inspects present-PTE bits when the
entry is actually present. The non-present, non-marker case returns "don't wait" and lets the fault path
retry. (CVE-2026-64514)

Solution

Update the sys-kernel/csql-kernel-6_1 library and its related packages to version 18613.675.37 or later.

Plugin Details

Severity: High

ID: 466583

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: 96.57

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-2026-64514

CVSS v3

Risk Factor: High

Base Score: 8.4

Temporal Score: 7.3

Vector: CVSS:3.0/AV:L/AC:L/PR:N/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-2026-64514

Detections

Analytics