# GhostLock: Linux Stack Use-After-Free Bug Present for 15 Years

A critical security vulnerability named GhostLock has been discovered in the Linux kernel, affecting all distributions for 15 years. It is a stack-based use-after-free (UAF) flaw that can lead to memory corruption and potential code execution. The widespread and long-standing nature of the bug makes it a significant threat to Linux system security.

**Importance:** 4/5

## Sources

### Technology
- [Hacker News](https://nebusec.ai/research/ionstack-part-2/) — Fri, 10 Jul 2026 20:43:02 +0000