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RockyLinux 9 : kernel (RLSA-2026:53329)

high Nessus Plugin ID 334880

Synopsis

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

Description

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:53329 advisory.

 * kernel: cxl/port: Fix use after free of parent_port in cxl_detach_ep() (CVE-2026-31530)

 * kernel: xen: AMD Zen 2 Processors: Privilege escalation via improper CPU cache isolation (CVE-2025-54518)

 * kernel: mm/slab: do not limit zeroing to orig_size when only red zoning is enabled (CVE-2026-64368)

 * kernel: net: openvswitch: reject oversized nested action attrs (CVE-2026-64531)

 Bug Fix(es) and Enhancement(s):

 * Kernel oops after increasing max number of mac addresses of a mlx5 VF [rhel-9.8.z] (JIRA:Rocky Linux-213036)

 * Rocky Linux9.4 - s390/pkey: Check length in pkey_pckmo handler implementation [rhel-9.8.z] (JIRA:Rocky Linux-215578)

 * Rocky Linux9.4 - s390/pkey: Check length in PKEY_VERIFYPROTK ioctl [rhel-9.8.z] (JIRA:Rocky Linux-215580)

 * cifs: periodic IO errors when rename races with lease break (JIRA:Rocky Linux-192999)

Tenable has extracted the preceding description block directly from the RockyLinux 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://bugzilla.redhat.com/show_bug.cgi?id=2460644

https://bugzilla.redhat.com/show_bug.cgi?id=2477784

https://bugzilla.redhat.com/show_bug.cgi?id=2507213

https://bugzilla.redhat.com/show_bug.cgi?id=2507402

https://errata.rockylinux.org/RLSA-2026:53329

Plugin Details

Severity: High

ID: 334880

File Name: rocky_linux_RLSA-2026-53329.nasl

Version: 1.1

Type: Local

Published: 8/12/2026

Updated: 8/12/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.9

Percentile: 99.36

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2026-31530

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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

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

CVSS v4

Risk Factor: High

Base Score: 7.3

Threat Score: 6.4

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS Score Source: CVE-2025-54518

Vulnerability Information

CPE: cpe:/o:rocky:linux:9, p-cpe:/a:rocky:linux:kernel-64k-core, p-cpe:/a:rocky:linux:kernel-64k-debug-core, p-cpe:/a:rocky:linux:kernel-64k-debug-debuginfo, p-cpe:/a:rocky:linux:kernel-64k-debug-devel-matched, p-cpe:/a:rocky:linux:kernel-64k-debug-devel, p-cpe:/a:rocky:linux:kernel-64k-debug-modules-core, p-cpe:/a:rocky:linux:kernel-64k-debug-modules-extra, p-cpe:/a:rocky:linux:kernel-64k-debug-modules, p-cpe:/a:rocky:linux:kernel-64k-debug, p-cpe:/a:rocky:linux:kernel-64k-debuginfo, p-cpe:/a:rocky:linux:kernel-64k-devel-matched, p-cpe:/a:rocky:linux:kernel-64k-devel, p-cpe:/a:rocky:linux:kernel-64k-modules-core, p-cpe:/a:rocky:linux:kernel-64k-modules-extra, p-cpe:/a:rocky:linux:kernel-64k-modules, p-cpe:/a:rocky:linux:kernel-64k, p-cpe:/a:rocky:linux:kernel-abi-stablelists, p-cpe:/a:rocky:linux:kernel-core, p-cpe:/a:rocky:linux:kernel-debug-core, p-cpe:/a:rocky:linux:kernel-debug-debuginfo, p-cpe:/a:rocky:linux:kernel-debug-devel-matched, p-cpe:/a:rocky:linux:kernel-debug-devel, p-cpe:/a:rocky:linux:kernel-debug-modules-core, p-cpe:/a:rocky:linux:kernel-debug-modules-extra, p-cpe:/a:rocky:linux:kernel-debug-modules, p-cpe:/a:rocky:linux:kernel-debug-uki-virt, p-cpe:/a:rocky:linux:kernel-debug, p-cpe:/a:rocky:linux:kernel-debuginfo-common-aarch64, p-cpe:/a:rocky:linux:kernel-debuginfo-common-ppc64le, p-cpe:/a:rocky:linux:kernel-debuginfo-common-s390x, p-cpe:/a:rocky:linux:kernel-debuginfo-common-x86_64, p-cpe:/a:rocky:linux:kernel-debuginfo, p-cpe:/a:rocky:linux:kernel-devel-matched, p-cpe:/a:rocky:linux:kernel-devel, p-cpe:/a:rocky:linux:kernel-modules-core, p-cpe:/a:rocky:linux:kernel-modules-extra, p-cpe:/a:rocky:linux:kernel-modules, p-cpe:/a:rocky:linux:kernel-rt-64k-core, p-cpe:/a:rocky:linux:kernel-rt-64k-debug-core, p-cpe:/a:rocky:linux:kernel-rt-64k-debug-debuginfo, p-cpe:/a:rocky:linux:kernel-rt-64k-debug-devel, p-cpe:/a:rocky:linux:kernel-rt-64k-debug-modules-core, p-cpe:/a:rocky:linux:kernel-rt-64k-debug-modules-extra, p-cpe:/a:rocky:linux:kernel-rt-64k-debug-modules, p-cpe:/a:rocky:linux:kernel-rt-64k-debug, p-cpe:/a:rocky:linux:kernel-rt-64k-debuginfo, p-cpe:/a:rocky:linux:kernel-rt-64k-devel, p-cpe:/a:rocky:linux:kernel-rt-64k-modules-core, p-cpe:/a:rocky:linux:kernel-rt-64k-modules-extra, p-cpe:/a:rocky:linux:kernel-rt-64k-modules, p-cpe:/a:rocky:linux:kernel-rt-64k, p-cpe:/a:rocky:linux:kernel-rt-core, p-cpe:/a:rocky:linux:kernel-rt-debug-core, p-cpe:/a:rocky:linux:kernel-rt-debug-debuginfo, p-cpe:/a:rocky:linux:kernel-rt-debug-devel, p-cpe:/a:rocky:linux:kernel-rt-debug-modules-core, p-cpe:/a:rocky:linux:kernel-rt-debug-modules-extra, p-cpe:/a:rocky:linux:kernel-rt-debug-modules, p-cpe:/a:rocky:linux:kernel-rt-debug, p-cpe:/a:rocky:linux:kernel-rt-debuginfo, p-cpe:/a:rocky:linux:kernel-rt-devel, p-cpe:/a:rocky:linux:kernel-rt-modules-core, p-cpe:/a:rocky:linux:kernel-rt-modules-extra, p-cpe:/a:rocky:linux:kernel-rt-modules, p-cpe:/a:rocky:linux:kernel-rt, p-cpe:/a:rocky:linux:kernel-tools-debuginfo, p-cpe:/a:rocky:linux:kernel-tools-libs-devel, p-cpe:/a:rocky:linux:kernel-tools-libs, p-cpe:/a:rocky:linux:kernel-tools, p-cpe:/a:rocky:linux:kernel-uki-virt-addons, p-cpe:/a:rocky:linux:kernel-uki-virt, p-cpe:/a:rocky:linux:kernel-zfcpdump-core, p-cpe:/a:rocky:linux:kernel-zfcpdump-debuginfo, p-cpe:/a:rocky:linux:kernel-zfcpdump-devel-matched, p-cpe:/a:rocky:linux:kernel-zfcpdump-devel, p-cpe:/a:rocky:linux:kernel-zfcpdump-modules-core, p-cpe:/a:rocky:linux:kernel-zfcpdump-modules-extra, p-cpe:/a:rocky:linux:kernel-zfcpdump-modules, p-cpe:/a:rocky:linux:kernel-zfcpdump, p-cpe:/a:rocky:linux:kernel, p-cpe:/a:rocky:linux:libperf-debuginfo, p-cpe:/a:rocky:linux:libperf, p-cpe:/a:rocky:linux:perf-debuginfo, p-cpe:/a:rocky:linux:perf, p-cpe:/a:rocky:linux:python3-perf-debuginfo, p-cpe:/a:rocky:linux:python3-perf, p-cpe:/a:rocky:linux:rtla, p-cpe:/a:rocky:linux:rv

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/12/2026

Vulnerability Publication Date: 4/22/2026

Reference Information

CVE: CVE-2025-54518, CVE-2026-31530, CVE-2026-64368, CVE-2026-64531