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Full vulnerability report · 2025
CVE-2023-54129High confidence

octeontx2-af: Add validation for lmac type

Linux · Linux

7.1HighCVSS 3.1
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
Distribution package intelligence

Ubuntu vendor package status

Canonical’s release and source-package findings are shown separately from local repository availability.

9 package states
Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Ubuntu releaseSource packageVendor stateFixed versionEvidence
Ubuntu 24.04 LTSnoble · standard archivelinux-azure-6.11Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-gcp-6.11Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-hwe-6.11Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-lowlatency-hwe-6.11Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-nvidia-6.11Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-oem-6.11Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-raspi-realtimeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-realtimeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-riscvAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 11 Sept 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
CVE-2023-54129 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitykernel: octeontx2-af: Add validation for lmac type
108 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • bpftool as a component of Red Hat Enterprise Linux 9
  • kernel as a component of Red Hat Enterprise Linux 9
  • kernel-64k as a component of Red Hat Enterprise Linux 9
  • kernel-64k-core as a component of Red Hat Enterprise Linux 9
  • kernel-64k-debug as a component of Red Hat Enterprise Linux 9
  • kernel-64k-debug-core as a component of Red Hat Enterprise Linux 9
  • kernel-64k-debug-devel as a component of Red Hat Enterprise Linux 9
  • kernel-64k-debug-devel-matched as a component of Red Hat Enterprise Linux 9
  • kernel-64k-debug-modules as a component of Red Hat Enterprise Linux 9
  • kernel-64k-debug-modules-core as a component of Red Hat Enterprise Linux 9
  • kernel-64k-debug-modules-extra as a component of Red Hat Enterprise Linux 9
  • kernel-64k-debug-modules-internal as a component of Red Hat Enterprise Linux 9
Summary
A flaw was found in the octeontx2-af network driver within the Linux kernel where insufficient validation of the lmac_type_id field from firmware during a physical link change can result in a kernel panic. Firmware may report an invalid lmac_type_id, and because the kernel previously derived an internal lmac_type without verifying that the identifier was within a valid range, this can lead to corrupt state and an internal Oops condition.
Remediation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2023-60316

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: Add validation for lmac type Upon physical link change, firmware reports to the kernel about the change along with the details like speed, lmac_type_id, etc. Kernel derives lmac_type based on lmac_type_id received from firmware. In a few scenarios, firmware returns an invalid lmac_type_id, which is resulting in below kernel panic. This patch adds the missing validation of the lmac_type_id field. Internal error: Oops: 96000005 [#1] PREEMPT SMP [ 35.321595] Modules linked in: [ 35.328982] CPU: 0 PID: 31 Comm: kworker/0:1 Not tainted 5.4.210-g2e3169d8e1bc-dirty #17 [ 35.337014] Hardware name: Marvell CN103XX board (DT) [ 35.344297] Workqueue: events work_for_cpu_fn [ 35.352730] pstate: 40400089 (nZcv daIf +PAN -UAO) [ 35.360267] pc : strncpy+0x10/0x30 [ 35.366595] lr : cgx_link_change_handler+0x90/0x180

What

In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: Add validation for lmac type Upon physical link change, firmware reports to the kernel about the change along with the details like speed, lmac_type_id, etc. Kernel derives lmac_type based on lmac_type_id received from firmware. In a few scenarios, firmware returns an invalid lmac_type_id, which is resulting in below kernel panic. This patch adds the missing validation of the lmac_type_id field. Internal error: Oops: 96000005 [#1] PREEMPT SMP [ 35.321595] Modules linked in: [ 35.328982] CPU: 0 PID: 31 Comm: kworker/0:1 Not tainted 5.4.210-g2e3169d8e1bc-dirty #17 [ 35.337014] Hardware name: Marvell CN103XX board (DT) [ 35.344297] Workqueue: events work_for_cpu_fn [ 35.352730] pstate: 40400089 (nZcv daIf +PAN -UAO) [ 35.360267] pc : strncpy+0x10/0x30 [ 35.366595] lr : cgx_link_change_handler+0x90/0x180

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through an adjacent network may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: Add validation for lmac type Upon physical link change, firmware reports to the kernel about the change along with the details like speed, lmac_type_id, etc. Kernel derives lmac_type based on lmac_type_id received from firmware. In a few scenarios, firmware returns an invalid lmac_type_id, which is resulting in below kernel panic. This patch adds the missing validation of the lmac_type_id field. Internal error: Oops: 96000005 [#1] PREEMPT SMP [ 35.321595] Modules linked in: [ 35.328982] CPU: 0 PID: 31 Comm: kworker/0:1 Not tainted 5.4.210-g2e3169d8e1bc-dirty #17 [ 35.337014] Hardware name: Marvell CN103XX board (DT) [ 35.344297] Workqueue: events work_for_cpu_fn [ 35.352730] pstate: 40400089 (nZcv daIf +PAN -UAO) [ 35.360267] pc : strncpy+0x10/0x30 [ 35.366595] lr : cgx_link_change_handler+0x90/0x180

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through an adjacent network may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
an adjacent network → vulnerable operation → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Adjacent
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration.
CWE not yet assigned
CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVAdjacentAttack vector: The attacker must be on an adjacent or logically close network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CLowConfidentiality impact: A successful attack can cause a limited loss.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
Unauthenticated
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-2025-2929Linux Kernel: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen im Linux-Kernel ausnutzen, um nicht näher spezifizierte Angriffe durchzuführen, die möglicherweise zu einer Denial-of-Service- Bedingung führen oder eine Speicherbeschädigung verursachen können.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0862Multiples vulnérabilités dans le noyau Linux de Debian LTS

d?id=CVE-2022-50472 Référence CVE CVE-2022-50493 https://www.cve.org/CVERecord?id=CVE-2022-50493 Référence CVE CVE-2022-50552 https://www.cve.org/CVERecord?id=CVE-2022-50552 Référence CVE CVE-2023-53133 https://www.cve.org/CVERecord?id=CVE-2023-53133 Référence CVE CVE-2023-53292 https://www.cve.org/CVERecord?id=CVE-2023-53292 Référence CVE CVE-2023-53421 https://www.cve.org/CVERecord?id=CVE-2023-53421 Référence CVE CVE-2023-53596 https://www.cve.org/CVERecord?id=CVE-2023-53596 Référence CVE CVE-2023-53989 https://www.cve.org/CVERecord?id=CVE-2023-53989 Référence CVE CVE-2023-54125 https://www.cve.org/CVERecord?id=CVE-2023-54125 Référence CVE CVE-2023-54129 https://www.cve.org/CVERecord?id=CVE-2023-54129 Référence CVE CVE-2023-54271 https://www.cve.org/CVERecord?id=CVE-2023-54271 Référence CVE CVE-2023-54322 https://www.cve.org/CVERecord?id=CVE-2023-54322 Référence CVE CVE-2024-27012 https://www.cve.org/CVERecord?id=CVE-2024-27012 Référence CVE CVE-2024-36922 https://www.cve.org/CVERecord?id=CVE-2024-36922 Référence CVE CVE-2024-43902 https://www.cve.org/CVERecord?id=CVE-2024-43902 Référence CVE CVE-2024-53221 https://www.cve.org/CVERecord?id=CVE-2024-53221 Référence CVE CVE-2024-56657 https://www.cve.org/CVERecord?id=CVE-2024-56657 Référence CVE CVE-2025-10263 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0326Multiples vulnérabilités dans les produits VMware

d?id=CVE-2023-54059 Référence CVE CVE-2023-54067 https://www.cve.org/CVERecord?id=CVE-2023-54067 Référence CVE CVE-2023-54071 https://www.cve.org/CVERecord?id=CVE-2023-54071 Référence CVE CVE-2023-54081 https://www.cve.org/CVERecord?id=CVE-2023-54081 Référence CVE CVE-2023-54088 https://www.cve.org/CVERecord?id=CVE-2023-54088 Référence CVE CVE-2023-54105 https://www.cve.org/CVERecord?id=CVE-2023-54105 Référence CVE CVE-2023-54107 https://www.cve.org/CVERecord?id=CVE-2023-54107 Référence CVE CVE-2023-54121 https://www.cve.org/CVERecord?id=CVE-2023-54121 Référence CVE CVE-2023-54125 https://www.cve.org/CVERecord?id=CVE-2023-54125 Référence CVE CVE-2023-54129 https://www.cve.org/CVERecord?id=CVE-2023-54129 Référence CVE CVE-2023-54145 https://www.cve.org/CVERecord?id=CVE-2023-54145 Référence CVE CVE-2023-54149 https://www.cve.org/CVERecord?id=CVE-2023-54149 Référence CVE CVE-2023-54151 https://www.cve.org/CVERecord?id=CVE-2023-54151 Référence CVE CVE-2023-54172 https://www.cve.org/CVERecord?id=CVE-2023-54172 Référence CVE CVE-2023-54180 https://www.cve.org/CVERecord?id=CVE-2023-54180 Référence CVE CVE-2023-54181 https://www.cve.org/CVERecord?id=CVE-2023-54181 Référence CVE CVE-2023-54185 https://www.cve.org/CVERecord?id=CVE-2023-54185 Référence CVE CVE-2023-54187 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0316Multiples vulnérabilités dans les produits VMware

d?id=CVE-2023-54059 Référence CVE CVE-2023-54067 https://www.cve.org/CVERecord?id=CVE-2023-54067 Référence CVE CVE-2023-54071 https://www.cve.org/CVERecord?id=CVE-2023-54071 Référence CVE CVE-2023-54081 https://www.cve.org/CVERecord?id=CVE-2023-54081 Référence CVE CVE-2023-54088 https://www.cve.org/CVERecord?id=CVE-2023-54088 Référence CVE CVE-2023-54105 https://www.cve.org/CVERecord?id=CVE-2023-54105 Référence CVE CVE-2023-54107 https://www.cve.org/CVERecord?id=CVE-2023-54107 Référence CVE CVE-2023-54121 https://www.cve.org/CVERecord?id=CVE-2023-54121 Référence CVE CVE-2023-54125 https://www.cve.org/CVERecord?id=CVE-2023-54125 Référence CVE CVE-2023-54129 https://www.cve.org/CVERecord?id=CVE-2023-54129 Référence CVE CVE-2023-54145 https://www.cve.org/CVERecord?id=CVE-2023-54145 Référence CVE CVE-2023-54149 https://www.cve.org/CVERecord?id=CVE-2023-54149 Référence CVE CVE-2023-54151 https://www.cve.org/CVERecord?id=CVE-2023-54151 Référence CVE CVE-2023-54172 https://www.cve.org/CVERecord?id=CVE-2023-54172 Référence CVE CVE-2023-54180 https://www.cve.org/CVERecord?id=CVE-2023-54180 Référence CVE CVE-2023-54181 https://www.cve.org/CVERecord?id=CVE-2023-54181 Référence CVE CVE-2023-54185 https://www.cve.org/CVERecord?id=CVE-2023-54185 Référence CVE CVE-2023-54187 https://www.cve.org/CVERecord?id=

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
Fixed
Linux: < 4.20, 5.10.259 ≤ 5.10.*, 6.1.32 ≤ 6.1.*, 6.2.16 ≤ 6.2.*, 6.3.3 ≤ 6.3.*, 6.4 ≤ *
Action
Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
04

Evidence and provenance

Published 24 Dec 2025 · Last source change 5 Aug 2026, 09:17 UTC · CWE not yet assigned

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2023-60316
Product sourceVendor CSAF · Red Hat Product Security
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceUnavailable
NVD statusNVD not scheduled

Missing structured fields: CWE classification. Missing data is not evidence of low risk; review the primary advisory.

Material change intelligence

What changed after publication

View recent updates ↗

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2023-60316↗Vendor CSAF · Red Hat Product Security↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2023-54129 · cve.blacktree.nl