Public Exploits Released for Four Linux Kernel Flaws That Enable Local Root

Public Exploits Released for Four Linux Kernel Flaws That Enable Local Root Swati KhandelwalSep 18, 2026Vulnerability / Linux A security researcher has released working exploit code for four Linux kernel flaws that each let a local user gain root, the highest level of access on a machine. Kernel maintainers have fixed all four over the past few weeks, so a system running an up-to-date kernel is not affected. But the exploit code is now public, and any machine still running an older kernel should be updated. The flaws are called DirtyAH6, TUNderflow, PPPoEject, and DiagSpill. Researcher Asim Manizada found them and reported them to the Linux kernel security team in mid-July. He published a technical write-up with working exploits on…