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Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989622)

medium Nessus Plugin ID 273514

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-2025-989622 advisory.

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

 nfp: Fix memory leak in nfp_cpp_area_cache_add()

 In line 800 (#1), nfp_cpp_area_alloc() allocates and initializes a CPP area structure. But in line 807 (#2), when the cache is allocated failed, this CPP area structure is not freed, which will result in memory leak.

 We can fix it by freeing the CPP area when the cache is allocated failed (#2).

 792 int nfp_cpp_area_cache_add(struct nfp_cpp *cpp, size_t size) 793 { 794 struct nfp_cpp_area_cache *cache;
 795 struct nfp_cpp_area *area;

 800 area = nfp_cpp_area_alloc(cpp, NFP_CPP_ID(7, NFP_CPP_ACTION_RW, 0), 801 0, size);
 // #1: allocates and initializes

 802 if (!area) 803 return -ENOMEM;

 805 cache = kzalloc(sizeof(*cache), GFP_KERNEL);
 806 if (!cache) 807 return -ENOMEM; // #2: missing free

 817 return 0;
 818 }

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?8030987a

http://www.nessus.org/u?e7f095d3

https://nvd.nist.gov/vuln/detail/CVE-2021-47516

Plugin Details

Severity: Medium

ID: 273514

File Name: unity_linux_UTSA-2025-989622.nasl

Version: 1.1

Type: local

Published: 11/5/2025

Updated: 11/5/2025

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-2021-47516

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: 11/5/2025

Vulnerability Publication Date: 7/21/2021

Reference Information

CVE: CVE-2021-47516