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Unity Linux 20.1070e Security Update: kernel (UTSA-2025-989799)

medium Nessus Plugin ID 272876

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-2025-989799 advisory.

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

 f2fs: fix to do sanity check for inline inode

 Yanming reported a kernel bug in Bugzilla kernel [1], which can be reproduced. The bug message is:

 The kernel message is shown below:

 kernel BUG at fs/inode.c:611! Call Trace:
 evict+0x282/0x4e0
 __dentry_kill+0x2b2/0x4d0 dput+0x2dd/0x720 do_renameat2+0x596/0x970
 __x64_sys_rename+0x78/0x90 do_syscall_64+0x3b/0x90

 [1] https://bugzilla.kernel.org/show_bug.cgi?id=215895

 The bug is due to fuzzed inode has both inline_data and encrypted flags.
 During f2fs_evict_inode(), as the inode was deleted by rename(), it will cause inline data conversion due to conflicting flags. The page cache will be polluted and the panic will be triggered in clear_inode().

 Try fixing the bug by doing more sanity checks for inline data inode in sanity_check_inode().

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?d808a3e3

http://www.nessus.org/u?4446fd06

https://nvd.nist.gov/vuln/detail/CVE-2022-49361

Plugin Details

Severity: Medium

ID: 272876

File Name: unity_linux_UTSA-2025-989799.nasl

Version: 1.1

Type: local

Published: 11/5/2025

Updated: 11/5/2025

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-2022-49361

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: 11/5/2025

Vulnerability Publication Date: 2/26/2025

Reference Information

CVE: CVE-2022-49361