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Google: sys-kernel/csql-kernel-6_1, sys-kernel/csql-kernel-6_6: security update to 18613.339.11

medium Tenable Self-Hosted Container Security Plugin ID 466208

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/hugetlb: unshare page tables during
 VMA split, not before Currently, __split_vma() triggers hugetlb page table unsharing through
 vm_ops->may_split(). This happens before the VMA lock and rmap locks are taken - which is too early, it
 allows racing VMA-locked page faults in our process and racing rmap walks from other processes to cause
 page tables to be shared again before we actually perform the split. Fix it by explicitly calling into the
 hugetlb unshare logic from __split_vma() in the same place where THP splitting also happens. At that
 point, both the VMA and the rmap(s) are write-locked. An annoying detail is that we can now call into the
 helper hugetlb_unshare_pmds() from two different locking contexts: 1. from hugetlb_split(), holding: -
 mmap lock (exclusively) - VMA lock - file rmap lock (exclusively) 2. hugetlb_unshare_all_pmds(), which I
 think is designed to be able to call us with only the mmap lock held (in shared mode), but currently only
 runs while holding mmap lock (exclusively) and VMA lock Backporting note: This commit fixes a racy
 protection that was introduced in commit b30c14cd6102 ("hugetlb: unshare some PMDs when splitting VMAs");
 that commit claimed to fix an issue introduced in 5.13, but it should actually also go all the way back.
 [[email protected]: v2] (CVE-2025-38084)

Solution

Update the sys-kernel/csql-kernel-6_1 library and its related packages to version 18613.339.11 or later.

See Also

https://storage.googleapis.com/cos-oval-vulnerability-feed/cos-117.oval.xml.tar.gz

Plugin Details

Severity: Medium

ID: 466208

Version: Revision 1.2

Type: Local

Published: 10/2/2026

Updated: 10/3/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 94.88

Vendor

Vendor Severity: LOW

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-2025-38084

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: 6/28/2025

Reference Information

CVE: CVE-2025-38084