CVE-2025-39966 | Linux Kernel up to 6.12.49/6.16.9 iommufd fput file descriptor consumption

October 15, 2025 Yanac

A vulnerability classified as critical was found in Linux Kernel up to 6.12.49/6.16.9. This affects the function fput of the component iommufd. Such manipulation leads to uncontrolled file descriptor consumption.

This vulnerability is uniquely identified as CVE-2025-39966. The attack can only be initiated within the local network. No exploit exists.

Upgrading the affected component is advised.VulDB Recent EntriesRead More