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Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-010912)
medium Nessus Plugin ID 308932
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-2026-010912 advisory.In the Linux kernel, the following vulnerability has been resolved:
serial: sc16is7xx: setup GPIO controller later in probe
The GPIO controller component of the sc16is7xx driver is setup too early, which can result in a race condition where another device tries to utilise the GPIO lines before the sc16is7xx device has finished initialising.
This issue manifests itself as an Oops when the GPIO lines are configured:
Unable to handle kernel read from unreadable memory at virtual address ...
pc : sc16is7xx_gpio_direction_output+0x68/0x108 [sc16is7xx] lr : sc16is7xx_gpio_direction_output+0x4c/0x108 [sc16is7xx] ...
Call trace:
sc16is7xx_gpio_direction_output+0x68/0x108 [sc16is7xx] gpiod_direction_output_raw_commit+0x64/0x318 gpiod_direction_output+0xb0/0x170 create_gpio_led+0xec/0x198 gpio_led_probe+0x16c/0x4f0 platform_drv_probe+0x5c/0xb0 really_probe+0xe8/0x448 driver_probe_device+0xe8/0x138
__device_attach_driver+0x94/0x118 bus_for_each_drv+0x8c/0xe0
__device_attach+0x100/0x1b8 device_initial_probe+0x28/0x38 bus_probe_device+0xa4/0xb0 deferred_probe_work_func+0x90/0xe0 process_one_work+0x1c4/0x480 worker_thread+0x54/0x430 kthread+0x138/0x150 ret_from_fork+0x10/0x1c
This patch moves the setup of the GPIO controller functions to later in the probe function, ensuring the sc16is7xx device has already finished initialising by the time other devices try to make use of the GPIO lines.
The error handling has also been reordered to reflect the new initialisation order.
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?57f9ae50
Plugin Details
Severity: Medium
ID: 308932
File Name: unity_linux_UTSA-2026-010912.nasl
Version: 1.1
Type: Local
Published: 4/21/2026
Updated: 4/21/2026
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.2
CVSS v2
Risk Factor: Medium
Base Score: 4.5
Temporal Score: 3.3
Vector: CVSS2#AV:L/AC:H/Au:S/C:N/I:P/A:C
CVSS Score Source: CVE-2023-54118
CVSS v3
Risk Factor: Medium
Base Score: 5.3
Temporal Score: 4.6
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/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: 4/20/2026
Vulnerability Publication Date: 7/21/2021
Reference Information
CVE: CVE-2023-54118