netem sch_netem

About this tag
The netem sch_netem tag on WindowsForum.com covers the Linux kernel's network emulation queuing discipline, sch_netem, which is used for testing by simulating packet delay, loss, duplication, and corruption. Recent discussions focus on CVE-2026-31675, a vulnerability in sch_netem that can cause edge-case packet corruption and kernel memory risk under specific AF_PACKET TX_RING and IPIP tunnel scenarios. This flaw highlights how a testing feature can have security implications in production environments. Topics include the vulnerability's impact, kernel versions affected, and mitigation strategies for administrators. The tag is relevant for Linux system administrators, security professionals, and developers working with network emulation and kernel security.

  1. CVE-2026-31675 Linux netem flaw: edge-case packet corruption and kernel memory risk

    CVE-2026-31675 is a newly published Linux kernel vulnerability that turns a rarely discussed testing feature into a reminder that edge-case packet handling can still matter in production security. The flaw sits in sch_netem, the kernel’s network emulation queuing discipline, where packet...
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    • cve remediation linux kernel netem sch_netem packet corruption
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    • Forum: Security Alerts