GhostLock Vulnerability: Stack‑Use‑After‑Free Bug Present in All Linux Distributions for 15 Years

Security researchers have identified a stack‑use‑after‑free (UAF) flaw dubbed GhostLock. The vulnerability has existed in every Linux distribution for roughly fifteen years. GhostLock allows attackers to exploit memory corruption in the kernel stack. The issue was detailed in a follow‑up analysis published by Nebusec. Exploitation could lead to privilege escalation or system compromise. The researchers recommend immediate patching and mitigation steps. Linux maintainers are urged to incorporate fixes in upcoming releases. Users are advised to monitor security advisories for updates.