Detections
Analytics

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-986945)

medium Nessus Plugin ID 269025

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-2025-986945 advisory.

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

 IB/hfi1: Correctly move list in sc_disable()

 Commit 13bac861952a (IB/hfi1: Fix abba locking issue with sc_disable()) incorrectly tries to move a list from one list head to another. The result is a kernel crash.

 The crash is triggered when a link goes down and there are waiters for a send to complete. The following signature is seen:

 BUG: kernel NULL pointer dereference, address: 0000000000000030 [...] Call Trace:
 sc_disable+0x1ba/0x240 [hfi1] pio_freeze+0x3d/0x60 [hfi1] handle_freeze+0x27/0x1b0 [hfi1] process_one_work+0x1b0/0x380 ? process_one_work+0x380/0x380 worker_thread+0x30/0x360 ? process_one_work+0x380/0x380 kthread+0xd7/0x100 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x1f/0x30

 The fix is to use the correct call to move the list.

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?af773822

http://www.nessus.org/u?5b7506a9

https://nvd.nist.gov/vuln/detail/CVE-2022-49931

Plugin Details

Severity: Medium

ID: 269025

File Name: unity_linux_UTSA-2025-986945.nasl

Version: 1.2

Type: local

Published: 10/7/2025

Updated: 10/15/2025

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-2022-49931

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/cpu, Host/UOS-Server/release, Host/UOS-Server/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 9/23/2025

Vulnerability Publication Date: 5/1/2025

Reference Information

CVE: CVE-2022-49931