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 19999.44.21

critical Tenable Self-Hosted Container Security Plugin ID 472266

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: sunrpc: harden rq_procinfo lifecycle
 to prevent double-free The svc_release_rqst() function executes the callback inside
 rqstp->rq_procinfo->pc_release. However, if a worker thread begins processing a new request and encounters
 an early error path (e.g., unsupported protocol, short frame, or bad auth) before a valid rq_procinfo is
 installed, a stale release hook can be re-triggered against reused state from the previous RPC, resulting
 in a double-free or use-after-free vulnerability. Harden the lifecycle of rq_procinfo by: 1. Ensuring
 svc_release_rqst() always clears rq_procinfo after the optional pc_release() call, regardless of whether
 the hook exists. 2. Explicitly clearing rq_procinfo at request entry in svc_process() before any early
 decode or drop paths. 3. Ensuring svc_process_bc() does the same at backchannel entry. This guarantees
 that error flows will not encounter a non-NULL stale rq_procinfo pointer when there is nothing to release.
 (CVE-2026-72220)

Solution

Update the sys-kernel/cchost-kernel-6_18 library and its related packages to version 19999.44.21 or later.

See Also

https://storage.googleapis.com/cos-oval-vulnerability-feed/cos-133.oval.xml.tar.gz

Plugin Details

Severity: Critical

ID: 472266

Version: Revision 1.1

Type: Local

Published: 10/3/2026

Updated: 10/3/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.17

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-72220

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/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: 8/15/2026

Reference Information

CVE: CVE-2026-72220