High 7.1Published Dec 24, 2025

CVE-2023-54129octeontx2-af: Add validation for lmac type

Updated under an hour ago (Oct 26, 2026, 2:23 PM ET)

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Exploited in the last 30 days

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

CVSS: 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Deferred
Record last updated: Aug 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 61071a871ea6eb2125ece91c1a0dbb124a318c8a before 4392454c694b13d78c84165c0964729772cd3b73; 61071a871ea6eb2125ece91c1a0dbb124a318c8a builds before 83a7f27c5b94e43f29f8216a32790751139aa61e; from 61071a871ea6eb2125ece91c1a0dbb124a318c8a before afd7660c766c4d317feae004e5cd829390bbc4b0; 61071a871ea6eb2125ece91c1a0dbb124a318c8a builds before 5c0268b141ad612b6fca13d3a66cfda111716dbb; from 61071a871ea6eb2125ece91c1a0dbb124a318c8a before cb5edce271764524b88b1a6866b3e626686d9a33	CNA record

References

References

https://git.kernel.org/stable/c/4392454c694b13d78c84165c0964729772cd3b73
https://git.kernel.org/stable/c/83a7f27c5b94e43f29f8216a32790751139aa61e
https://git.kernel.org/stable/c/afd7660c766c4d317feae004e5cd829390bbc4b0
https://git.kernel.org/stable/c/5c0268b141ad612b6fca13d3a66cfda111716dbb
https://git.kernel.org/stable/c/cb5edce271764524b88b1a6866b3e626686d9a33

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.