Volerion logoVolerion
Volerion logoVolerion

Linux Kernel LoongArch KVM User-Space CPU Number Validation Vulnerability

Vulnerability

A vulnerability in the Linux kernel's KVM component for LoongArch architecture has been addressed. This issue involved inadequate validation of the 'num_cpu' parameter from user space, which could lead to array pointer overflow. The vulnerability was particularly relevant to the EIOINTC_IRQCHIP, where the maximum supported CPU number is defined by EIOINTC_ROUTE_MAX_VCPUS.

Impact

The vulnerability could have allowed for array pointer overflow, potentially leading to memory corruption or other unintended behavior.

Added: Jul 25, 2025, 3:11 PM
Updated: Jul 25, 2025, 7:24 PM

Vulnerability Rating

Custom Algorithm
spread
9.0
impact
2.5
exploitability
3.5
remediation
0.0
relevance
0.3
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.