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

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00026.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
61071a871ea6eb2125ece91c1a0dbb124a318c8a affected < 83a7f27c5b94e43f29f8216a32790751139aa61e
61071a871ea6eb2125ece91c1a0dbb124a318c8a affected < afd7660c766c4d317feae004e5cd829390bbc4b0
61071a871ea6eb2125ece91c1a0dbb124a318c8a affected < 5c0268b141ad612b6fca13d3a66cfda111716dbb
61071a871ea6eb2125ece91c1a0dbb124a318c8a affected < cb5edce271764524b88b1a6866b3e626686d9a33
Linux Linux affected
Version Status Constraints
4.20 affected —
0 unaffected < 4.20
6.1.32 unaffected ≤ 6.1.*
6.2.16 unaffected ≤ 6.2.*
6.3.3 unaffected ≤ 6.3.*
6.4 unaffected ≤ *

No data.

No data.

No data.

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/5c0268b141ad612b6fca13d3a66cfda111716dbb cve-icon cve-icon
https://git.kernel.org/stable/c/83a7f27c5b94e43f29f8216a32790751139aa61e cve-icon cve-icon
https://git.kernel.org/stable/c/afd7660c766c4d317feae004e5cd829390bbc4b0 cve-icon cve-icon
https://git.kernel.org/stable/c/cb5edce271764524b88b1a6866b3e626686d9a33 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025122419-CVE-2023-54129-8cb3@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2023-54129 cve-icon
https://www.cve.org/CVERecord?id=CVE-2023-54129 cve-icon
History

Thu, 25 Dec 2025 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Moderate

Wed, 24 Dec 2025 13:15:00 +0000

Type Values Removed Values Added
Description 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
Title octeontx2-af: Add validation for lmac type
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-12-24T13:06:46.817Z

Reserved: 2025-12-24T13:02:52.521Z

Link: CVE-2023-54129

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-12-24T13:16:14.887

Modified: 2025-12-29T15:58:34.503

Link: CVE-2023-54129

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-12-24T00:00:00Z

Links: CVE-2023-54129 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.