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Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-992630)

high Nessus Plugin ID 280334

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-2025-992630 advisory.

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

 slimbus: messaging: Free transaction ID in delayed interrupt scenario

 In case of interrupt delay for any reason, slim_do_transfer() returns timeout error but the transaction ID (TID) is not freed.
 This results into invalid memory access inside qcom_slim_ngd_rx_msgq_cb() due to invalid TID.

 Fix the issue by freeing the TID in slim_do_transfer() before returning timeout error to avoid invalid memory access.

 Call trace:
 __memcpy_fromio+0x20/0x190 qcom_slim_ngd_rx_msgq_cb+0x130/0x290 [slim_qcom_ngd_ctrl] vchan_complete+0x2a0/0x4a0 tasklet_action_common+0x274/0x700 tasklet_action+0x28/0x3c
 _stext+0x188/0x620 run_ksoftirqd+0x34/0x74 smpboot_thread_fn+0x1d8/0x464 kthread+0x178/0x238 ret_from_fork+0x10/0x20 Code: aa0003e8 91000429 f100044a 3940002b (3800150b)
 ---[ end trace 0fe00bec2b975c99 ]--- Kernel panic - not syncing: Oops: Fatal exception in interrupt.

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?2cff3a10

http://www.nessus.org/u?a61b9776

https://nvd.nist.gov/vuln/detail/CVE-2025-21914

Plugin Details

Severity: High

ID: 280334

File Name: unity_linux_UTSA-2025-992630.nasl

Version: 1.1

Type: local

Published: 12/30/2025

Updated: 12/30/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2025-21914

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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: 12/30/2025

Vulnerability Publication Date: 4/1/2025

Reference Information

CVE: CVE-2025-21914