Race Condition

The Epoll Deception: Why Your High-Performance Server Is One Race Condition Away from a Kernel Panic

CVE-2026-46242 reveals a fundamental race condition in epoll’s edge-triggered mode that can silently lose events or crash your kernel. This isn’t just another bug — it’s a wake-up call about the hidden design tensions in trusted APIs. If you build high-concurrency servers on Linux, this vulnerability demands immediate patching and a serious rethinking of your event-loop assumptions.