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AlmaLinux 10 : kernel (ALSA-2026:13566)

critical Nessus Plugin ID 312839

Synopsis

The remote AlmaLinux host is missing one or more security updates.

Description

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:13566 advisory.

 * kernel: Linux kernel: Use-after-free in traffic control (act_ct) may lead to denial of service or privilege escalation (CVE-2026-23270)
 * kernel: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (CVE-2026-31402)
 * kernel: Linux kernel: Use-after-free in bonding driver leads to denial of service (CVE-2026-31419)
 * kernel: crypto: algif_aead - Revert to operating out-of-place (CVE-2026-31431)

Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://errata.almalinux.org/10/ALSA-2026-13566.html

https://access.redhat.com/errata/RHSA-2026:13566

Plugin Details

Severity: Critical

ID: 312839

File Name: alma_linux_ALSA-2026-13566.nasl

Version: 1.1

Type: Local

Published: 5/7/2026

Updated: 5/7/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.4

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.7

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

CVSS Score Source: CVE-2026-31402

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.4

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

Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:alma:linux:kernel-rt-64k-modules, p-cpe:/a:alma:linux:kernel-zfcpdump-devel-matched, p-cpe:/a:alma:linux:kernel-rt-modules, p-cpe:/a:alma:linux:kernel-64k-core, p-cpe:/a:alma:linux:kernel-rt-64k-debug-modules-core, p-cpe:/a:alma:linux:kernel-zfcpdump-modules-core, p-cpe:/a:alma:linux:kernel-rt-modules-extra, p-cpe:/a:alma:linux:perf, cpe:/o:alma:linux:10::powertools, p-cpe:/a:alma:linux:kernel-rt-debug-modules-extra, p-cpe:/a:alma:linux:kernel-64k-debug-modules-extra, cpe:/o:alma:linux:10::baseos, p-cpe:/a:alma:linux:kernel-rt-64k-debug-modules, p-cpe:/a:alma:linux:kernel-64k-debug-devel-matched, p-cpe:/a:alma:linux:kernel-debug-devel, p-cpe:/a:alma:linux:kernel-zfcpdump-devel, p-cpe:/a:alma:linux:kernel-rt-devel, cpe:/o:alma:linux:10::resilientstorage, p-cpe:/a:alma:linux:kernel-64k-debug, p-cpe:/a:alma:linux:rv, p-cpe:/a:alma:linux:kernel-cross-headers, p-cpe:/a:alma:linux:kernel-debug-modules-extra, cpe:/o:alma:linux:10::supplementary, p-cpe:/a:alma:linux:kernel-uki-virt-addons, p-cpe:/a:alma:linux:rtla, p-cpe:/a:alma:linux:kernel-64k-debug-devel, p-cpe:/a:alma:linux:kernel-debug, p-cpe:/a:alma:linux:kernel-headers, p-cpe:/a:alma:linux:kernel-core, p-cpe:/a:alma:linux:kernel-zfcpdump-modules, p-cpe:/a:alma:linux:kernel-64k, p-cpe:/a:alma:linux:kernel-rt-64k-debug-devel, p-cpe:/a:alma:linux:kernel-rt, p-cpe:/a:alma:linux:kernel-debug-modules, p-cpe:/a:alma:linux:kernel-devel-matched, p-cpe:/a:alma:linux:kernel-rt-debug-modules-core, p-cpe:/a:alma:linux:kernel-64k-modules, p-cpe:/a:alma:linux:kernel-rt-64k-debug, p-cpe:/a:alma:linux:kernel-abi-stablelists, cpe:/o:alma:linux:10::sap_hana, p-cpe:/a:alma:linux:kernel-modules-extra-matched, p-cpe:/a:alma:linux:kernel-tools-libs-devel, p-cpe:/a:alma:linux:kernel-modules-core, p-cpe:/a:alma:linux:kernel, cpe:/o:alma:linux:10::appstream, p-cpe:/a:alma:linux:kernel-64k-devel, p-cpe:/a:alma:linux:kernel-zfcpdump, p-cpe:/a:alma:linux:kernel-zfcpdump-modules-extra, cpe:/o:alma:linux:10::highavailability, p-cpe:/a:alma:linux:kernel-debug-modules-core, p-cpe:/a:alma:linux:kernel-64k-debug-core, p-cpe:/a:alma:linux:kernel-rt-64k-debug-core, p-cpe:/a:alma:linux:kernel-rt-debug-core, p-cpe:/a:alma:linux:kernel-rt-debug, p-cpe:/a:alma:linux:kernel-devel, cpe:/o:alma:linux:10, p-cpe:/a:alma:linux:kernel-uki-virt, p-cpe:/a:alma:linux:kernel-debug-devel-matched, p-cpe:/a:alma:linux:kernel-tools-libs, p-cpe:/a:alma:linux:kernel-debug-uki-virt, p-cpe:/a:alma:linux:kernel-rt-64k-debug-modules-extra, p-cpe:/a:alma:linux:kernel-tools, p-cpe:/a:alma:linux:kernel-rt-modules-core, p-cpe:/a:alma:linux:libperf, p-cpe:/a:alma:linux:kernel-rt-64k, p-cpe:/a:alma:linux:kernel-rt-core, p-cpe:/a:alma:linux:kernel-64k-modules-core, cpe:/o:alma:linux:10::nfv, p-cpe:/a:alma:linux:kernel-zfcpdump-core, p-cpe:/a:alma:linux:kernel-rt-debug-devel, p-cpe:/a:alma:linux:kernel-64k-debug-modules-core, p-cpe:/a:alma:linux:kernel-debug-core, p-cpe:/a:alma:linux:kernel-modules, p-cpe:/a:alma:linux:kernel-rt-64k-modules-extra, p-cpe:/a:alma:linux:kernel-rt-64k-modules-core, p-cpe:/a:alma:linux:kernel-64k-devel-matched, cpe:/o:alma:linux:10::sap, p-cpe:/a:alma:linux:kernel-rt-64k-devel, p-cpe:/a:alma:linux:kernel-rt-64k-core, cpe:/o:alma:linux:10::realtime, p-cpe:/a:alma:linux:python3-perf, p-cpe:/a:alma:linux:kernel-64k-modules-extra, p-cpe:/a:alma:linux:kernel-modules-extra, p-cpe:/a:alma:linux:kernel-rt-debug-modules, p-cpe:/a:alma:linux:kernel-64k-debug-modules

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/4/2026

Vulnerability Publication Date: 3/18/2026

CISA Known Exploited Vulnerability Due Dates: 5/15/2026

Reference Information

CVE: CVE-2026-23270, CVE-2026-31402, CVE-2026-31419, CVE-2026-31431

CWE: 1288, 416, 787

RHSA: 2026:13566