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Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990479)

medium Nessus Plugin ID 274110

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-2025-990479 advisory.

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

 drm/msm/mdp5: Return error code in mdp5_pipe_release when deadlock is detected

 mdp5_get_global_state runs the risk of hitting a -EDEADLK when acquiring the modeset lock, but currently mdp5_pipe_release doesn't check for if an error is returned. Because of this, there is a possibility of mdp5_pipe_release hitting a NULL dereference error.

 To avoid this, let's have mdp5_pipe_release check if mdp5_get_global_state returns an error and propogate that error.

 Changes since v1:
 - Separated declaration and initialization of *new_state to avoid compiler warning
 - Fixed some spelling mistakes in commit message

 Changes since v2:
 - Return 0 in case where hwpipe is NULL as this is considered normal behavior
 - Added 2nd patch in series to fix a similar NULL dereference issue in mdp5_mixer_release

 Patchwork: https://patchwork.freedesktop.org/patch/485179/

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?f5eba5b9

http://www.nessus.org/u?2089a4c5

https://nvd.nist.gov/vuln/detail/CVE-2022-49490

Plugin Details

Severity: Medium

ID: 274110

File Name: unity_linux_UTSA-2025-990479.nasl

Version: 1.1

Type: local

Published: 11/6/2025

Updated: 11/6/2025

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-2022-49490

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: 11/6/2025

Vulnerability Publication Date: 2/26/2025

Reference Information

CVE: CVE-2022-49490