Google: sys-kernel/cchost-kernel-6_12, sys-kernel/csql-kernel-6_12, sys-kernel/lakitu-kernel-6_12, sys-kernel/lakitu-nc-kernel-6_12: security update to 19216.532.62

high Tenable Cloud Security Plugin ID 468836

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: fuse: clear intr_entry in fuse_resend
and fuse_remove_pending_req When fuse_resend() moves a request from fpq->processing back to fiq->pending,
it sets FR_PENDING and clears FR_SENT but does not remove the requests intr_entry from fiq->interrupts. If
the request had FR_INTERRUPTED set from a prior signal, intr_entry remains dangling on fiq->interrupts.
When the requesting task then receives a fatal signal, fuse_remove_pending_req() sees FR_PENDING=1,
removes the request from fiq->pending and frees it via the refcount path, also without cleaning
intr_entry. The stale intr_entry causes use-after-free when fuse_read_interrupt() iterates
fiq->interrupts: - list_del_init(&req->intr_entry) -> UAF write on freed slab - req->in.h.unique -> UAF
read, data leaked to userspace Remove intr_entry from fiq->interrupts in fuse_resend() for interrupted
requests before they are placed back on fiq->pending. Add a WARN_ON if the intr_entry is not empty on
request destruction. (CVE-2026-64265)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19216.532.62 or later.

Plugin Details

Severity: High

ID: 468836

Version: Revision 1.5

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: 6.9

Percentile: 96.81

Vendor

Vendor Severity: HIGH

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-2026-64265

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: 7/23/2026

Reference Information

CVE: CVE-2026-64265

Detections

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