CVE-2026-45971

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An issue exists in the BPF (Berkeley Packet Filter) subsystem where the lack of limits on BPF program signature sizes allows for potential abuse. By passing excessive size values, an attacker can force the kernel into expensive memory allocation paths via kmalloc large or vmalloc (virtual memory allocation), which can lead to system resource exhaustion.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.