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Google: sys-kernel/lakitu-kernel-6_1: security update to 18026.0.0

high Tenable Cloud Security Plugin ID 450730

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: x86/alternatives: Disable KASAN in
 apply_alternatives() Fei has reported that KASAN triggers during apply_alternatives() on a 5-level paging
 machine: BUG: KASAN: out-of-bounds in rcu_is_watching() Read of size 4 at addr ff110003ee6419a0 by task
 swapper/0/0 ... __asan_load4() rcu_is_watching() trace_hardirqs_on() text_poke_early()
 apply_alternatives() ... On machines with 5-level paging, cpu_feature_enabled(X86_FEATURE_LA57) gets
 patched. It includes KASAN code, where KASAN_SHADOW_START depends on __VIRTUAL_MASK_SHIFT, which is
 defined with cpu_feature_enabled(). KASAN gets confused when apply_alternatives() patches the
 KASAN_SHADOW_START users. A test patch that makes KASAN_SHADOW_START static, by replacing
 __VIRTUAL_MASK_SHIFT with 56, works around the issue. Fix it for real by disabling KASAN while the kernel
 is patching alternatives. [ mingo: updated the changelog ] (CVE-2023-52504)

Solution

Update the sys-kernel/lakitu-kernel-6_1 library and its related packages to version 18026.0.0 or later.

See Also

https://storage.googleapis.com/cos-oval-vulnerability-feed/cos-113.oval.xml.tar.gz

Plugin Details

Severity: High

ID: 450730

Version: Revision 1.1

Type: Local

Published: 10/1/2026

Updated: 10/1/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.04

Vendor

Vendor Severity: HIGH

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-2023-52504

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: 7/21/2021

Reference Information

CVE: CVE-2023-52504