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Unity Linux 20.1070e Security Update: kernel (UTSA-2025-987187)

medium Nessus Plugin ID 268558

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-2025-987187 advisory.

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

 nfs4: Fix kmemleak when allocate slot failed

 If one of the slot allocate failed, should cleanup all the other allocated slots, otherwise, the allocated slots will leak:

 unreferenced object 0xffff8881115aa100 (size 64):
 comm mount.nfs, pid 679, jiffies 4294744957 (age 115.037s) hex dump (first 32 bytes):
 00 cc 19 73 81 88 ff ff 00 a0 5a 11 81 88 ff ff ...s......Z.....
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
 backtrace:
 [<000000007a4c434a>] nfs4_find_or_create_slot+0x8e/0x130 [<000000005472a39c>] nfs4_realloc_slot_table+0x23f/0x270 [<00000000cd8ca0eb>] nfs40_init_client+0x4a/0x90 [<00000000128486db>] nfs4_init_client+0xce/0x270 [<000000008d2cacad>] nfs4_set_client+0x1a2/0x2b0 [<000000000e593b52>] nfs4_create_server+0x300/0x5f0 [<00000000e4425dd2>] nfs4_try_get_tree+0x65/0x110 [<00000000d3a6176f>] vfs_get_tree+0x41/0xf0 [<0000000016b5ad4c>] path_mount+0x9b3/0xdd0 [<00000000494cae71>] __x64_sys_mount+0x190/0x1d0 [<000000005d56bdec>] do_syscall_64+0x35/0x80 [<00000000687c9ae4>] entry_SYSCALL_64_after_hwframe+0x46/0xb0

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.

See Also

http://www.nessus.org/u?8e678f70

http://www.nessus.org/u?f742e1bc

https://nvd.nist.gov/vuln/detail/CVE-2022-49927

Plugin Details

Severity: Medium

ID: 268558

File Name: unity_linux_UTSA-2025-987187.nasl

Version: 1.1

Type: local

Published: 10/7/2025

Updated: 10/7/2025

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-2022-49927

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: 9/23/2025

Vulnerability Publication Date: 12/14/2022

Reference Information

CVE: CVE-2022-49927