Echo: linux: security update to 6.1.180-1

high Tenable Cloud Security Plugin ID 455433

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: HID: letsketch: fix UAF on
inrange_timer at driver unbind letsketch_driver does not provide a .remove callback, but letsketch_probe()
arms a per-device timer: timer_setup(&data->inrange_timer, letsketch_inrange_timeout, 0); The timer is re-
armed from letsketch_raw_event() with a 100 ms timeout on every pen-in-range report, and its callback
dereferences data->input_tablet to deliver a synthetic BTN_TOOL_PEN release. letsketch_data is allocated
with devm_kzalloc(), and its input_dev fields are devm-allocated via letsketch_setup_input_tablet(). On
device unbind (USB unplug or rmmod), the HID core runs its default teardown and devm cleanup frees both
letsketch_data and the input devices. Because no .remove callback exists, nothing drains the timer first:
if raw_event armed it within ~100 ms of the unbind, the pending timer fires on freed memory. This is a UAF
read of data and of data->input_tablet, followed by input_report_key() / input_sync() into the freed
input_dev. The same problem can occur on the probe error path: if hid_hw_start() enabled I/O on an always-
poll-quirk device and then failed, raw_event may have armed the timer before devm releases data. Fix by
adding a .remove callback that calls hid_hw_stop() first. hid_hw_stop() synchronously kills the URBs that
deliver raw_event(), so once it returns no path can re-arm the timer. timer_shutdown_sync() then drains
any in-flight callback and permanently disables further mod_timer() calls. Apply the same
timer_shutdown_sync() in the probe error path so the timer is guaranteed not to outlive data.
(CVE-2026-64365)

Solution

Update the linux library and its related packages to version 6.1.180-1 or later.

Plugin Details

Severity: High

ID: 455433

Version: Revision 1.2

Type: Local

Family: Echo Local Security Checks

Published: 10/1/2026

Updated: 10/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.27

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-2026-64365

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

Patch Publication Date: 7/26/2026

Vulnerability Publication Date: 7/23/2026

Reference Information

CVE: CVE-2026-64365

Detections

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