Linux Kernel Use-After-Free Vulnerability in Fprobe Events

Vulnerability

A use-after-free vulnerability has been identified in the Linux kernel's fprobe event handling. This issue arises because the management of module reference counts was altered, potentially allowing a module to be unloaded before its reference count is properly handled. As a result, the kernel could attempt to access a freed module object, leading to undefined behavior.

Impact

Exploitation of this vulnerability could result in a use-after-free condition, which may be leveraged to execute arbitrary code or cause a denial-of-service by crashing the system.

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

Vulnerability Rating

Custom Algorithm
spread
9.0
impact
0.6
exploitability
5.3
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.