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

medium Tenable Cloud Security Plugin ID 450463

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: mm/slab_common: fix slab_caches list
corruption after kmem_cache_destroy() After the commit in Fixes:, if a module that created a slab cache
does not release all of its allocated objects before destroying the cache (at rmmod time), we might end up
releasing the kmem_cache object without removing it from the slab_caches list thus corrupting the list as
kmem_cache_destroy() ignores the return value from shutdown_cache(), which in turn never removes the
kmem_cache object from slabs_list in case __kmem_cache_shutdown() fails to release all of the cache's
slabs. This is easily observable on a kernel built with CONFIG_DEBUG_LIST=y as after that ill release the
system will immediately trip on list_add, or list_del, assertions similar to the one shown below as soon
as another kmem_cache gets created, or destroyed: [ 1041.213632] list_del corruption. next->prev should be
ffff89f596fb5768, but was 52f1e5016aeee75d. (next=ffff89f595a1b268) [ 1041.219165] ------------[ cut here
]------------ [ 1041.221517] kernel BUG at lib/list_debug.c:62! [ 1041.223452] invalid opcode: 0000 [#1]
PREEMPT SMP PTI [ 1041.225408] CPU: 2 PID: 1852 Comm: rmmod Kdump: loaded Tainted: G B W OE 6.5.0 #15 [
1041.228244] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS edk2-20230524-3.fc37 05/24/2023 [
1041.231212] RIP: 0010:__list_del_entry_valid+0xae/0xb0 Another quick way to trigger this issue, in a
kernel with CONFIG_SLUB=y, is to set slub_debug to poison the released objects and then just run cat
/proc/slabinfo after removing the module that leaks slab objects, in which case the kernel will panic: [
50.954843] general protection fault, probably for non-canonical address 0xa56b6b6b6b6b6b8b: 0000 [#1]
PREEMPT SMP PTI [ 50.961545] CPU: 2 PID: 1495 Comm: cat Kdump: loaded Tainted: G B W OE 6.5.0 #15 [
50.966808] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS edk2-20230524-3.fc37 05/24/2023 [
50.972663] RIP: 0010:get_slabinfo+0x42/0xf0 This patch fixes this issue by properly checking
shutdown_cache()'s return value before taking the kmem_cache_release() branch. (CVE-2023-52562)

Solution

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

Plugin Details

Severity: Medium

ID: 450463

Version: Revision 1.1

Type: Local

Family: Google COS Security Checks

Published: 10/1/2026

Updated: 10/1/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

Vendor

Vendor Severity: MEDIUM

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2023-52562

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/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: 10/24/2023

Reference Information

CVE: CVE-2023-52562

Detections

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