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Echo: linux: security update to 6.1.164-1

medium Tenable Cloud Security Plugin ID 458739

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: platform/x86: classmate-laptop: Add
 missing NULL pointer checks In a few places in the Classmate laptop driver, code using the accel object
 may run before that object's address is stored in the driver data of the input device using it. For
 example, cmpc_accel_sensitivity_store_v4() is the "show" method of cmpc_accel_sensitivity_attr_v4 which is
 added in cmpc_accel_add_v4(), before calling dev_set_drvdata() for inputdev->dev. If the sysfs attribute
 is accessed prematurely, the dev_get_drvdata(&inputdev->dev) call in in cmpc_accel_sensitivity_store_v4()
 returns NULL which leads to a NULL pointer dereference going forward. Moreover, sysfs attributes using the
 input device are added before initializing that device by cmpc_add_acpi_notify_device() and if one of them
 is accessed before running that function, a NULL pointer dereference will occur. For example,
 cmpc_accel_sensitivity_attr_v4 is added before calling cmpc_add_acpi_notify_device() and if it is read
 prematurely, the dev_get_drvdata(&acpi->dev) call in cmpc_accel_sensitivity_show_v4() returns NULL which
 leads to a NULL pointer dereference going forward. Fix this by adding NULL pointer checks in all of the
 relevant places. (CVE-2026-23237)

Solution

Update the linux library and its related packages to version 6.1.164-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-23237

Plugin Details

Severity: Medium

ID: 458739

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 94.16

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-2026-23237

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

Patch Publication Date: 3/23/2026

Vulnerability Publication Date: 2/26/2026

Reference Information

CVE: CVE-2026-23237