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Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990451)

medium Nessus Plugin ID 274183

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-2025-990451 advisory.

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

 iio: trigger: sysfs: fix possible memory leak in iio_sysfs_trig_init()

 dev_set_name() allocates memory for name, it need be freed when device_add() fails, call put_device() to give up the reference that hold in device_initialize(), so that it can be freed in kobject_cleanup() when the refcount hit to 0.

 Fault injection test can trigger this:

 unreferenced object 0xffff8e8340a7b4c0 (size 32):
 comm modprobe, pid 243, jiffies 4294678145 (age 48.845s) hex dump (first 32 bytes):
 69 69 6f 5f 73 79 73 66 73 5f 74 72 69 67 67 65 iio_sysfs_trigge 72 00 a7 40 83 8e ff ff 00 86 13 c4 f6 ee ff ff r..@............
 backtrace:
 [<0000000074999de8>] __kmem_cache_alloc_node+0x1e9/0x360 [<00000000497fd30b>] __kmalloc_node_track_caller+0x44/0x1a0 [<000000003636c520>] kstrdup+0x2d/0x60 [<0000000032f84da2>] kobject_set_name_vargs+0x1e/0x90 [<0000000092efe493>] dev_set_name+0x4e/0x70

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?930b7e01

http://www.nessus.org/u?7ca51c46

https://nvd.nist.gov/vuln/detail/CVE-2022-49793

Plugin Details

Severity: Medium

ID: 274183

File Name: unity_linux_UTSA-2025-990451.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-2022-49793

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: 5/1/2025

Reference Information

CVE: CVE-2022-49793