Google: sys-kernel/csql-kernel-6_6, sys-kernel/lakitu-kernel-6_6, sys-kernel/lakitu-nc-kernel-6_6, sys-kernel/lakitu-vgpu-kernel-6_6, sys-kernel/tpusev-kernel-6_6: security update to 18613.613.5

high Tenable Self-Hosted Container Security Plugin ID 466300

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: perf: Make sure to use pmu_ctx->pmu
for groups Oliver reported that x86_pmu_del() ended up doing an out-of-bound memory access when
group_sched_in() fails and needs to roll back. This *should* be handled by the transaction callbacks, but
he found that when the group leader is a software event, the transaction handlers of the wrong PMU are
used. Despite the move_group case in perf_event_open() and group_sched_in() using pmu_ctx->pmu. Turns out,
inherit uses event->pmu to clone the events, effectively undoing the move_group case for all inherited
contexts. Fix this by also making inherit use pmu_ctx->pmu, ensuring all inherited counters end up in the
same pmu context. Similarly, __perf_event_read() should use equally use pmu_ctx->pmu for the group case.
(CVE-2026-31528)

Solution

Update the sys-kernel/csql-kernel-6_6 library and its related packages to version 18613.613.5 or later.

Plugin Details

Severity: High

ID: 466300

Version: Revision 1.2

Type: Local

Family: Google COS Security Checks

Published: 10/2/2026

Updated: 10/3/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.94

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2026-31528

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/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: 4/22/2026

Reference Information

CVE: CVE-2026-31528

Detections

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