Detections
Analytics

Google: sys-kernel/cchost-kernel-6_18, sys-kernel/csql-kernel-6_18, sys-kernel/lakitu-kernel-6_18, sys-kernel/lakitu-nc-kernel-6_18: security update to 20162.0.0

high Tenable Self-Hosted Container Security Plugin ID 475760

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: fix cpntf publish race in
 nfs4_init_cp_state nfs4_alloc_init_cpntf_state() published the new cpntf entry into the s2s_cp_stateids
 IDR (with cs_type set) in one s2s_cp_lock section, then took the lock again to list_add() it onto
 p_stid->sc_cp_list. In the gap the entry is reachable by so_id but cp_list is still {NULL,NULL} from
 kzalloc. A racing OFFLOAD_CANCEL (so_id is echoed to the client as cnr_stateid, so any NFSv4.2 client can
 drive it) reaches manage_cpntf_state() -> _free_cpntf_state_locked() and does list_del() on the zeroed
 list_head, oopsing the server. Fold the cs_type assignment and the list_add() into the same critical
 section as idr_alloc_cyclic(), so a concurrent lookup either misses the entry or sees a fully linked
 cp_list. INIT_LIST_HEAD() the entry after allocation and switch _free_cpntf_state_locked() to
 list_del_init() so a stale unlink is a no-op. nfs4_init_copy_state() passes NULL p_stid and skips the
 list_add, preserving NFS4_COPY_STID semantics. (CVE-2026-89684)

Solution

Update the sys-kernel/cchost-kernel-6_18 library and its related packages to version 20162.0.0 or later.

See Also

https://storage.googleapis.com/cos-oval-vulnerability-feed/cos-138.oval.xml.tar.gz

Plugin Details

Severity: High

ID: 475760

Version: Revision 1.1

Type: Local

Published: 10/16/2026

Updated: 10/16/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.7

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-89684

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

Reference Information

CVE: CVE-2026-89684