SecComp-Diff: Analyzing Linux System Call Restrictions for Container Security

The article introduces SecComp-Diff, an open-source tool designed to analyze and compare seccomp (secure computing mode) profiles in Linux, particularly for containerized environments. Seccomp filters restrict the system calls a process can make, reducing attack surfaces, but misconfigurations can break functionality or leave gaps in security. The tool helps developers and security teams visualize differences between profiles, audit their effectiveness, and identify overly permissive rules. By enabling granular inspection of container security policies, SecComp-Diff aims to prevent privilege escalation and hardening failures in cloud-native deployments. The piece underscores the importance of proper seccomp tuning as containers and microservices increasingly rely on Linux kernel isolation mechanisms. 

https://github.com/antitree/seccomp-diff

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