Jordan Rife's work involves writing BPF programs for

Cilium that interface with

Kubernetes
networking. As part of that work, he wants to enable BPF programs with appropriate permissions to iterate through the sockets of a different network namespace. He led a session about the idea at the 2026

Linux Storage,
Filesystem, Memory-Management, and BPF Summit where the BPF developers in attendance were quick to suggest a number of related alternatives.

https://lwn.net/Articles/1085896/
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