Linux Kernel SCTP Flaw Let Local Users Gain Root for 18 Years

An AI found a hole in the Linux kernel that sat open for 18 years, then wrote the exploit that turns a local user into root. The machines were not misconfigured. The bug was in the kernel itself, since 2007. 🧐 Researchers at Tencent&rsquo;s Zhuque Lab published the full analysis on 6 August. They track it as CVE-2026-64564 and named it SCTPhantom . It lets a normal user on a Linux machine climb…