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 19216.655.6

high Tenable Self-Hosted Container Security Plugin ID 469424

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: add bounds check to
run_get_highest_vcn() run_get_highest_vcn() parses a packed NTFS mapping-pairs buffer without any length
bound, relying solely on a 0x00 terminator to stop. A crafted $LogFile UpdateMappingPairs record whose
embedded attribute contains mapping-pairs runs without a terminator causes the function to read past the
slab allocation, triggering a KASAN slab-out-of-bounds read on mount. The sibling function run_unpack()
received an analogous bounds-check in commit b62567bca474 ("ntfs3: add buffer boundary checks to
run_unpack()"), but run_get_highest_vcn() was missed. Take a run_buf_size parameter and reject any run
header whose payload would extend past the buffer end, mirroring the pattern used by run_unpack(). The
caller in fslog.c passes the remaining attribute bytes after the mapping-pairs offset. KASAN report (on
mainline v7.1 merge window HEAD): BUG: KASAN: slab-out-of-bounds in run_get_highest_vcn+0x3c0/0x410 Read
of size 1 at addr ffff88800e2d5400 by task mount/72 Call Trace: run_get_highest_vcn+0x3c0/0x410
do_action.isra.0+0x3ba8/0x7b50 log_replay+0x9ddd/0x10200 ntfs_loadlog_and_replay+0x4ad/0x610
ntfs_fill_super+0x214a/0x4540 (CVE-2026-72478)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19216.655.6 or later.

See Also

https://storage.googleapis.com/cos-oval-vulnerability-feed/cos-125.oval.xml.tar.gz

Plugin Details

Severity: High

ID: 469424

Version: Revision 1.6

Type: Local

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: 6.9

Percentile: 96.77

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-2026-72478

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: 8/11/2026

Reference Information

CVE: CVE-2026-72478