TL;DR Researcher Hyunwoo Kim has published full details and proof-of-concept exploits for six Linux kernel vulnerabilities he calls "Infinity Core." Five of them lead to local privilege escalation and container escape, and one crashes the kernel. Upstream fixes exist, so admins should install patched kernels now. Why It Matters These bugs sit in core kernel code: timers, signals, memory management, futex, the scheduler and the SLAB allocator.