Detections
Analytics

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 19216.700.7

high Tenable Self-Hosted Container Security Plugin ID 474900

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: nfsd: clear opcnt on compound arg
 release to prevent OOB read nfsd4_release_compoundargs() resets args->ops to the inline iops[8] array when
 the dynamically-allocated ops buffer is freed, but leaves args->opcnt at its original value (which can be
 up to 200 for NFSv4.1+ compounds). If rq_status_counter is stuck at an odd value (which can happen when
 nfsd_dispatch() hits an error path after setting it odd), the RPC status dumpit handler reads min(opcnt,
 16) entries from args->ops[]. Since iops only has 8 elements and is the last field in struct
 nfsd4_compoundargs, reading indices 8-15 accesses adjacent slab memory and leaks it to userspace via
 netlink. Zero opcnt unconditionally in nfsd4_release_compoundargs() so stale compound metadata is never
 exposed through the status interface. [ cel: Remove the kvfree_rcu_mightsleep() sleep from the exposure
 window ] (CVE-2026-89691)

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: High

ID: 474900

Version: Revision 1.1

Type: Local

Published: 10/16/2026

Updated: 10/16/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.44

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: Medium

Base Score: 6.2

Temporal Score: 4.6

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

CVSS Score Source: CVE-2026-89691

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.2

Vector: CVSS:3.0/AV:L/AC:L/PR:L/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: 9/11/2026

Reference Information

CVE: CVE-2026-89691