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Linux Kernel Memory Leak Vulnerability in AMD PMC STB Debugfs Handling

Vulnerability

A memory leak vulnerability has been addressed in the Linux kernel's AMD platform support. The issue arises in the 'amd_pmc_stb_debugfs_open_v2()' function, which can be invoked when the STB debug mechanism is active. If the 'amd_pmc_send_cmd()' function fails, the allocated buffer is not properly released, leading to a memory leak.

Impact

Exploitation of this vulnerability could lead to a memory leak, causing increased memory usage and potentially degrading system performance over time.

Added: Dec 30, 2025, 1:50 PM
Updated: Dec 30, 2025, 1:50 PM

Vulnerability Rating

Custom Algorithm
spread
9.0
impact
2.5
exploitability
4.0
remediation
7.7
relevance
1.6
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.