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AlmaLinux 9 : kernel (ALSA-2025:21926)

medium Nessus Plugin ID 277304

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Synopsis

The remote AlmaLinux host is missing a security update.

Description

The remote AlmaLinux 9 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2025:21926 advisory.

 * kernel: mm: slub: avoid wake up kswapd in set_track_prepare (CVE-2025-39843)

Tenable has extracted the preceding description block directly from the AlmaLinux 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 packages.

See Also

https://errata.almalinux.org/9/ALSA-2025-21926.html

https://access.redhat.com/errata/RHSA-2025:21926

Plugin Details

Severity: Medium

ID: 277304

File Name: alma_linux_ALSA-2025-21926.nasl

Version: 1.1

Type: local

Published: 12/3/2025

Updated: 12/3/2025

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Low

Base Score: 3.8

Temporal Score: 2.8

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

CVSS Score Source: CVE-2025-39843

CVSS v3

Risk Factor: Medium

Base Score: 4.7

Temporal Score: 4.1

Vector: CVSS:3.0/AV:L/AC:H/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

CPE: cpe:/o:alma:linux:9::appstream, p-cpe:/a:alma:linux:kernel-zfcpdump-devel-matched, p-cpe:/a:alma:linux:rtla, p-cpe:/a:alma:linux:kernel, p-cpe:/a:alma:linux:kernel-64k-core, p-cpe:/a:alma:linux:rv, p-cpe:/a:alma:linux:kernel-64k-devel, p-cpe:/a:alma:linux:kernel-64k-debug-devel, p-cpe:/a:alma:linux:kernel-headers, cpe:/o:alma:linux:9::supplementary, p-cpe:/a:alma:linux:perf, p-cpe:/a:alma:linux:kernel-64k-debug-modules-extra, cpe:/o:alma:linux:9::highavailability, cpe:/o:alma:linux:9::nfv, cpe:/o:alma:linux:9::resilientstorage, p-cpe:/a:alma:linux:kernel-64k-debug-core, p-cpe:/a:alma:linux:kernel-64k, cpe:/o:alma:linux:9::sap_hana, p-cpe:/a:alma:linux:kernel-64k-devel-matched, p-cpe:/a:alma:linux:kernel-64k-debug-devel-matched, cpe:/o:alma:linux:9::sap, p-cpe:/a:alma:linux:kernel-devel-matched, cpe:/o:alma:linux:9::crb, p-cpe:/a:alma:linux:kernel-devel, cpe:/o:alma:linux:9::realtime, p-cpe:/a:alma:linux:python3-perf, p-cpe:/a:alma:linux:kernel-debug-devel, p-cpe:/a:alma:linux:kernel-debug-devel-matched, p-cpe:/a:alma:linux:kernel-zfcpdump-devel, cpe:/o:alma:linux:9, p-cpe:/a:alma:linux:kernel-64k-modules-extra, p-cpe:/a:alma:linux:kernel-64k-debug, p-cpe:/a:alma:linux:kernel-64k-debug-modules, p-cpe:/a:alma:linux:kernel-abi-stablelists, cpe:/o:alma:linux:9::baseos

Required KB Items: Host/local_checks_enabled, Host/AlmaLinux/release, Host/AlmaLinux/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 11/24/2025

Vulnerability Publication Date: 9/19/2025

Reference Information

CVE: CVE-2025-39843

CWE: 833

RHSA: 2025:21926