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Linux Kernel VCHI Keep-Alive Thread Null Pointer Dereference Vulnerability

Vulnerability

A null pointer dereference vulnerability has been identified in the Linux kernel's VCHIq ARM staging driver. This issue arises when the function vchiq_platform_conn_state_changed() is not called or fails before the driver is removed, leaving the keep-alive thread pointer invalid. As a result, the kernel may crash when kthread_stop is called without the necessary checks.

Impact

Exploitation of this vulnerability can lead to a kernel crash due to a null pointer dereference.

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.