linux kernel bpf

The linux kernel bpf tag on WindowsForum.com covers discussions about the Linux kernel's extended Berkeley Packet Filter (eBPF) subsystem, focusing on security vulnerabilities, correctness issues, and infrastructure implications. Recent content highlights CVE-2026-43010, a vulnerability in eBPF kprobe.multi attachment handling where sleepable BPF programs could be accepted in atomic/RCU context, leading to kernel availability failures. This tag explores how eBPF serves as a privileged instrumentation layer in modern Linux environments, including container platforms, observability tooling, and Windows Subsystem for Linux (WSL). The recurring theme is that as eBPF becomes integral to infrastructure, its correctness directly impacts availability engineering and security posture.