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Linux Kernel Refcount Leak Vulnerability in cpufreq Component

Vulnerability

A refcount leak vulnerability has been identified in the Linux kernel's cpufreq component for MacRISC3 systems. The issue arises in the function pmac_cpufreq_init_MacRISC3(), where three node pointers are incremented by of_find_node_by_name() without a corresponding decrement, leading to a memory management flaw.

Impact

Exploitation of this vulnerability causes a memory refcount leak, which can potentially lead to memory corruption or other undefined behaviors.

Added: Jun 9, 2025, 7:46 PM
Updated: Jun 9, 2025, 7:46 PM

Vulnerability Rating

Custom Algorithm
spread
9.0
impact
2.5
exploitability
4.0
remediation
0.0
relevance
0.0
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.