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🛡️ CVE-2023-54129 — kernel

🟠 CVSS 7.1 — High ✅ No Known Exploit NVD
7.1
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

octeontx2-af: Add validation for lmac type

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

How this vulnerability can be exploited

This issue can be reached from an adjacent network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity none, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

  • Attack vector: Adjacent network — the attacker has to sit on the same local or logical network.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: None — an unauthenticated stranger can try it.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: Low — limited, and the attacker does not choose what is affected.
  • Integrity impact: None.
  • Availability impact: High — total loss, or loss the attacker controls.

Affected software

CVE-2023-54129 is recorded against 2 packages.

  • kernel (from 6.3.0 up to 6.3.3)
  • unknown

Timeline and source

Published on 24 December 2025 and last revised on 12 August 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
github.com (Advisory)
nvd.nist.gov (Advisory)
git.kernel.org (Package)

Other advisories for this package

kernel has other advisories on record. If you are patching this one, these are worth checking on the same host:

Details

Severity High
CVSS Score 7.1
CVSS Vector CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2025-12-24
Updated 2026-08-20
Modified 2026-08-12
Fix URL N/A

Affected Packages

Software From version Fixed in
kernel 6.3.0 6.3.3
unknown — —

Similar Threats

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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