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Message   LWN.net    All   [$] Sending packets directly from BPF   July 15, 2026
 6:40 AM *   

Tetragon, the BPF-based security monitoring tool,
uses BPF to monitor different aspects of a running kernel and
enforce user-specified policies. It sends its data to a user-space process,
which forwards the data to a central monitoring service elsewhere in the
network, however. This
presents a point of vulnerability: if an attacker can kill Tetragon's user-space
agent, it won't be able to properly report on the situation. Song Liu, Mahé
Tardy, and Liam Wiseheart spoke about their work removing the need for the
user-space agent at the 2026

Linux Storage, Filesystem, Memory-Management, and
BPF Summit.

https://lwn.net/Articles/1081696/
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