Google: sys-kernel/cchost-kernel-6_12, sys-kernel/csql-kernel-6_12, sys-kernel/lakitu-kernel-6_12, sys-kernel/lakitu-nc-kernel-6_12: security update to 19506.299.82

high Tenable Cloud Security Plugin ID 469568

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: fs/ntfs3: validate Dirty Page Table
capacity in log_replay copy_lcns In the analysis pass of $LogFile journal replay, log_replay() copies LCNs
from each action log record into an existing Dirty Page Table (DPT) entry without bounding the destination
index. A crafted NTFS image with DPT entry lcns_follow=1 and an action log record with lcns_follow=2
produces a kernel slab out-of-bounds write at mount time: BUG: KASAN: slab-out-of-bounds in
log_replay+0x654c/0xdb60 Write of size 8 at addr ffff8880095e1040 by task mount Two attacker-controlled
fields can drive j+i past the allocated page_lcns[] array: 1. dp->lcns_follow (capacity) can be smaller
than lrh->lcns_follow. 2. lrh->target_vcn may be smaller than dp->vcn, making the u64 subtraction wrap to
a huge size_t. Validate target VCN delta and per-record LCN count against the DPT entry capacity, bail via
the existing out: cleanup label with -EINVAL. This mirrors the bounds-check pattern added in commit
b2bc7c44ed17 ("fs/ntfs3: Fix slab-out-of-bounds read in DeleteIndexEntryRoot") and commit 0ca0485e4b2e
("fs/ntfs3: validate rec->used in journal-replay file record check"). (CVE-2026-64432)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19506.299.82 or later.

Plugin Details

Severity: High

ID: 469568

Version: Revision 1.5

Type: Local

Family: Google COS Security Checks

Published: 10/3/2026

Updated: 10/6/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.14

Vendor

Vendor Severity: HIGH

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-2026-64432

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/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-2026-64432

Detections

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