Detections
Analytics

Google: sys-kernel/cchost-kernel-6_12, sys-kernel/cchost-kernel-6_18, sys-kernel/csql-kernel-6_12, sys-kernel/csql-kernel-6_18, sys-kernel/lakitu-kernel-6_12, sys-kernel/lakitu-kernel-6_18, sys-kernel/lakitu-nc-kernel-6_12, sys-kernel/lakitu-nc-kernel-6_18: security update to 19862.0.0

high Tenable Cloud Security Plugin ID 471281

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: KVM: arm64: vgic-its: Drop the
 translation cache reference only for the erased entry vgic_its_invalidate_cache() walks the per-ITS
 translation cache with xa_for_each() and drops the cache's reference on each entry with vgic_put_irq(). It
 puts the iterated pointer, though, rather than the value returned by xa_erase(). The function is called
 from contexts that do not exclude one another: the ITS command handlers hold its_lock, the GITS_CTLR write
 path holds cmd_lock, and the path that clears EnableLPIs in a redistributor's GICR_CTLR holds neither. Two
 or more of them can drain the same cache concurrently, and if each one observes the same entry, erases it
 and then puts it, the single reference the cache holds on that entry is dropped more than once. The entry
 can then be freed while an ITE still maps it. xa_erase() is atomic and returns the previous entry, so put
 only the entry that this context actually removed. The cache reference is then dropped exactly once per
 entry even when the invalidations run concurrently, and the behavior is unchanged when only one context
 runs. (CVE-2026-46316)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19862.0.0 or later.

See Also

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

Plugin Details

Severity: High

ID: 471281

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: High

Score: 7.7

Percentile: 99.01

Vendor

Vendor Severity: CRITICAL

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-2026-46316

CVSS v3

Risk Factor: High

Base Score: 7

Temporal Score: 6.1

Vector: CVSS:3.0/AV:L/AC:H/PR:L/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: 6/9/2026

Reference Information

CVE: CVE-2026-46316