Detections
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Echo: linux: security update to 6.1.164-1

high Tenable Cloud Security Plugin ID 461515

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: bus: fsl-mc: fix use-after-free in
 driver_override_show() The driver_override_show() function reads the driver_override string without
 holding the device_lock. However, driver_override_store() uses driver_set_override(), which modifies and
 frees the string while holding the device_lock. This can result in a concurrent use-after-free if the
 string is freed by the store function while being read by the show function. Fix this by holding the
 device_lock around the read operation. (CVE-2026-23221)

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-2026-23221

Plugin Details

Severity: High

ID: 461515

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.63

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-2026-23221

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: 2/19/2026

Vulnerability Publication Date: 2/18/2026

Reference Information

CVE: CVE-2026-23221