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Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-992657)

medium Nessus Plugin ID 280335

Synopsis

The Unity Linux host is missing one or more security updates.

Description

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992657 advisory.

 In the Linux kernel, the following vulnerability has been resolved:

 usb: cdns3: Fix deadlock when using NCM gadget

 The cdns3 driver has the same NCM deadlock as fixed in cdnsp by commit 58f2fcb3a845 (usb: cdnsp: Fix deadlock issue during using NCM gadget).

 Under PREEMPT_RT the deadlock can be readily triggered by heavy network traffic, for example using iperf --bidir over NCM ethernet link.

 The deadlock occurs because the threaded interrupt handler gets preempted by a softirq, but both are protected by the same spinlock.
 Prevent deadlock by disabling softirq during threaded irq handler.

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected kernel package.

See Also

http://www.nessus.org/u?6c815a21

http://www.nessus.org/u?0475ebab

https://nvd.nist.gov/vuln/detail/CVE-2025-37812

Plugin Details

Severity: Medium

ID: 280335

File Name: unity_linux_UTSA-2025-992657.nasl

Version: 1.1

Type: local

Published: 12/30/2025

Updated: 12/30/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

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-2025-37812

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

Required KB Items: Host/local_checks_enabled, Host/UOS-Server/release, Host/UOS-Server/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 12/30/2025

Vulnerability Publication Date: 5/8/2025

Reference Information

CVE: CVE-2025-37812