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Linux Kernel OcteonTX2-PF NULL Pointer Dereference Vulnerability in MACsec Interface

Vulnerability

A vulnerability in the Linux kernel's OcteonTX2 network driver can lead to NULL pointer dereferences, causing system crashes. This issue occurs when the system is rebooted after a MACsec interface has been created. The vulnerability affects the OcteonTX2-PF component of the Linux kernel.

Impact

Exploitation of this vulnerability leads to a kernel crash due to a NULL pointer dereference.

Reproduction

To reproduce this vulnerability, create a MACsec interface on a system running the affected OcteonTX2-PF driver. After the interface is established, reboot the system. The reboot process will trigger a NULL pointer dereference, causing a kernel crash.

Remediation

The vulnerability has been addressed in the Linux kernel. Users should upgrade to the latest version where this issue has been fixed.

Added: Oct 4, 2025, 4:46 PM
Updated: Oct 4, 2025, 4:46 PM

Vulnerability Rating

Custom Algorithm
spread
9.0
impact
2.5
exploitability
5.7
remediation
7.7
relevance
0.7
threat
4.8
urgency
2.9
incentive
1.7

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.