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Linux Kernel NULL Pointer Dereference Vulnerability in PMBus Core

Vulnerability

A NULL pointer dereference vulnerability has been addressed in the Linux kernel's PMBus core within the hwmon subsystem. This issue arose because the function '_pmbus_is_enabled' incorrectly assumed that a regulator device was always provided. The vulnerability was present in several versions of the Linux kernel.

Impact

Exploitation of this vulnerability could lead to a NULL pointer dereference, causing a crash or undefined behavior in the kernel.

Remediation

Users can upgrade to the latest version of the Linux kernel to address this vulnerability.

Added: Sep 15, 2025, 6:04 PM
Updated: Sep 15, 2025, 6:04 PM

Vulnerability Rating

Custom Algorithm
spread
9.0
impact
2.5
exploitability
4.0
remediation
7.7
relevance
0.5
threat
3.2
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.