665: Patch Me If You Can
From LINUX Unplugged by Jupiter Broadcasting
May 4, 2026 · 1h 21m · Episode 665
About this episode
The episode discusses the Copy Fail vulnerability, features an interview with Jon Seager from Canonical, and introduces the BSD Challenge.
We dig into the Copy Fail vulnerability and test a proof-of-concept against our own box. Plus, Jon Seager, VP of Engineering at Canonical joins us, and we kick off the BSD Challenge! Sponsored By: Jupiter Party Annual Membership : Put your support on automatic with our annual plan, and get one month of membership for free! Managed Nebula : Meet Managed Nebula from Defined Networking. A decentralized VPN built on the open-source Nebula platform that we love. Support LINUX Unplugged Links: 💥 Gets Sats Quick and Easy with Strike 📻 LINUX Unplugged on Fountain.FM Copy Fail — CVE-2026-31431 — "An unprivileged local user can write four controlled bytes into the page cache of any readable file on a Linux system, and use that to gain root." — Theori Copy Fail: 732 Bytes to Root - Xint — "A single 732-byte Python script can edit a setuid binary and obtain root on essentially all Linux distributions shipped since 2017." — Xint Linux Kernel Bug Explained - Jorijn — "CopyFail is more portable. One script, every distro, no offsets. Dirty Pipe needed kernel ≥ 5.8; Copy Fail covers 2017–2026." — Jorijn"Kubernetes Pod Security Standards (Restricted) and default seccomp do NOT block the syscall…
People in this episode
Host: Jupiter Broadcasting
Guest: Jon Seager
Topics covered
- Copy Fail vulnerability
- Linux security
- BSD Challenge
- Canonical
- VPN technology
Keywords
- Copy Fail
- CVE-2026-31431
- Linux vulnerability
- BSD Challenge
- VPN
- Canonical
- security
Sponsors
Jupiter Party Annual Membership, Managed Nebula
Mentioned in this episode
Organizations: Canonical, Sysdig, Ars Technica, Xint, Theori
Books & works: Copy Fail, CVE-2026-31431, Kubernetes Pod Security Standards
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