Google: sys-kernel/cchost-kernel-6_12, sys-kernel/csql-kernel-6_12, sys-kernel/csql-kernel-6_6, sys-kernel/lakitu-kernel-6_12, sys-kernel/lakitu-kernel-6_6, sys-kernel/lakitu-nc-kernel-6_12, sys-kernel/lakitu-nc-kernel-6_6, sys-kernel/lakitu-vgpu-kernel-6_6: security update to 19216.700.7

critical Tenable Cloud Security Plugin ID 468528

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: nvmet: fix heap out-of-bounds read in
nvmet_auth_negotiate() nvmet_execute_auth_send() allocates the DH-HMAC-CHAP message buffer with the host-
supplied transfer length (tl) and hands it to nvmet_auth_negotiate() without passing tl along.
nvmet_auth_negotiate() then reads the negotiate header and, for each of the halen hash identifiers and
dhlen DH group identifiers, indexes into the fixed idlist[60] array (hashes at idlist[0..halen), groups at
idlist[30..]). Neither the transfer length nor halen/dhlen is validated. A malicious or non-conformant
host can report a tl smaller than the negotiate structure, or a halen/dhlen larger than the array (both
are u8, up to 255), making the loops read past the end of the allocated buffer (heap out-of-bounds read).
The sibling nvmet_auth_reply() already validates tl against the structure size; the negotiate path did
not. Pass tl into nvmet_auth_negotiate(), reject a tl that does not cover the negotiate data plus one full
protocol descriptor, and reject halen/dhlen larger than NVME_AUTH_DHCHAP_MAX_DH_IDS. (CVE-2026-90230)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19216.700.7 or later.

See Also

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

Plugin Details

Severity: Critical

ID: 468528

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: 4.3

Percentile: 53.41

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

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

CVSS Score Source: CVE-2026-90230

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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: 9/17/2026

Reference Information

CVE: CVE-2026-90230