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Unity Linux 20.1050e Security Update: kernel (UTSA-2026-006783)

medium Nessus Plugin ID 305373

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-2026-006783 advisory.

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

 ARM: rockchip: fix kernel hang during smp initialization

 In order to bring up secondary CPUs main CPU write trampoline code to SRAM. The trampoline code is written while secondary CPUs are powered on (at least that true for RK3188 CPU).
 Sometimes that leads to kernel hang. Probably because secondary CPU execute trampoline code while kernel doesn't expect.

 The patch moves SRAM initialization step to the point where all secondary CPUs are powered down.

 That fixes rarely hangs on RK3188:
 [ 0.091568] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000 [ 0.091996] rockchip_smp_prepare_cpus: ncores 4

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?6505b34e

http://www.nessus.org/u?92bdc08d

https://nvd.nist.gov/vuln/detail/CVE-2025-39752

Plugin Details

Severity: Medium

ID: 305373

File Name: unity_linux_UTSA-2026-006783.nasl

Version: 1.1

Type: Local

Published: 4/8/2026

Updated: 4/8/2026

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-2025-39752

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: 4/8/2026

Vulnerability Publication Date: 9/11/2025

Reference Information

CVE: CVE-2025-39752