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Vulnerability · Published Dec 24, 2025 · Assigned by Linux

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

High 7.1

In plain English

A high-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.1High
Exploit odds (30 days)0.3%top 78.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official 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

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.37-1DEBIAN-CVE-2023-54129
Debian:13linux6.3.7-1DEBIAN-CVE-2023-54129
Debian:14linux6.3.7-1DEBIAN-CVE-2023-54129
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-54129
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-54129
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2023-54129
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2023-54129
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2023-54129
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2023-54129
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2023-54129
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2023-54129
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-54129
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-54129
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-54129
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2023-54129
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2023-54129

Affected products (as reported)

VendorProductVersions
Linux Linux 61071a871ea6eb2125ece91c1a0dbb124a318c8a – before 4392454c694b13d78c84165c0964729772cd3b7361071a871ea6eb2125ece91c1a0dbb124a318c8a – before 83a7f27c5b94e43f29f8216a32790751139aa61e61071a871ea6eb2125ece91c1a0dbb124a318c8a – before afd7660c766c4d317feae004e5cd829390bbc4b061071a871ea6eb2125ece91c1a0dbb124a318c8a – before 5c0268b141ad612b6fca13d3a66cfda111716dbb61071a871ea6eb2125ece91c1a0dbb124a318c8a – before cb5edce271764524b88b1a6866b3e626686d9a33
Linux Linux 4.20

References