Google: sys-kernel/csql-kernel-6_6: security update to 19165.0.0

medium Tenable Cloud Security Plugin ID 454165

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: mm: clear uffd-wp PTE/PMD state on
mremap() When mremap()ing a memory region previously registered with userfaultfd as write-protected but
without UFFD_FEATURE_EVENT_REMAP, an inconsistency in flag clearing leads to a mismatch between the vma
flags (which have uffd-wp cleared) and the pte/pmd flags (which do not have uffd-wp cleared). This
mismatch causes a subsequent mprotect(PROT_WRITE) to trigger a warning in page_table_check_pte_flags() due
to setting the pte to writable while uffd-wp is still set. Fix this by always explicitly clearing the
uffd-wp pte/pmd flags on any such mremap() so that the values are consistent with the existing clearing of
VM_UFFD_WP. Be careful to clear the logical flag regardless of its physical form; a PTE bit, a swap PTE
bit, or a PTE marker. Cover PTE, huge PMD and hugetlb paths. (CVE-2025-21696)

Solution

Update the sys-kernel/csql-kernel-6_6 library and its related packages to version 19165.0.0 or later.

Plugin Details

Severity: Medium

ID: 454165

Version: Revision 1.1

Type: Local

Family: Google COS Security Checks

Published: 10/1/2026

Updated: 10/1/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

Vendor

Vendor Severity: MEDIUM

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2025-21696

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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: 2/12/2025

Reference Information

CVE: CVE-2025-21696

Detections

Analytics