Google: sys-kernel/cchost-kernel-6_12, sys-kernel/csql-kernel-6_12, sys-kernel/csql-kernel-6_6, sys-kernel/lakitu-kernel-6_12, sys-kernel/lakitu-kernel-6_6, sys-kernel/lakitu-nc-kernel-6_12, sys-kernel/lakitu-nc-kernel-6_6, sys-kernel/lakitu-vgpu-kernel-6_6: security update to 19216.700.7

high Tenable Self-Hosted Container Security Plugin ID 468600

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: RDMA/core: Fix potential use after
free in ib_destroy_srq_user() When accessing a SRQ via the netlink path the only synchronization mechanism
for the said SRQ is rdma_restrack_get(). Currently, rdma_restrack_del() is invoked at the end of
ib_destroy_srq_user(), which is too late, since by that point vendor-specific resources associated with
the SRQ might already be freed. This can leave a short window where the SRQ remains accessible through
restrack, leading to a potential use-after-free. Fix this by moving the rdma_restrack_begin_del() call to
the start of ib_destroy_srq_user(), ensuring that the SRQ is removed from restrack before its internal
resources are released. This guarantees that no new users hold references to a SRQ that is in the process
of destruction. In addition, this change preserves the intended inverted order between create and destroy
routines: resources are added to restrack at the end of successful creation, and hence shall be removed
from the restrack first thing during the destruction flow, which keeps the lifecycle management consistent
and predictable. (CVE-2026-92510)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19216.700.7 or later.

Plugin Details

Severity: High

ID: 468600

Version: Revision 1.6

Type: Local

Family: Google COS Security Checks

Published: 10/3/2026

Updated: 10/6/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.27

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-2026-92510

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: 9/17/2026

Reference Information

CVE: CVE-2026-92510

Detections

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