this post was submitted on 02 May 2026
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cross-posted from: https://lemmy.ml/post/46701277

I’ve been running my home lab since 2021 and honestly thought my update routine was solid: apt update && apt upgrade, reboot, job done.

Turns out I was wrong. I was checking CVE‑2026‑31431 (Copy Fail) this morning and realised that despite my “successful” updates, I was still running a vulnerable kernel from March.

I’ve had to rethink how I handle host updates. If you’re relying on a standard upgrade and a reboot to keep Proxmox or Debian hosts safe, you might want to check if yours is lying to you as well.

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[–] tofu@lemmy.nocturnal.garden 59 points 5 days ago (12 children)

You're not supposed to run apt upgrade in Proxmox at all, it may even break your system. Use dist-upgrade.

https://pve.proxmox.com/pve-docs/chapter-sysadmin.html#system_software_updates

[–] TheIPW@lemmy.ml 26 points 5 days ago (6 children)

dist-upgrade and full-upgrade are essentially the same command but yeah, I won't be using apt upgrade again in the future! Like I said in my post, the joys of being self taught is that you learn by my making mistakes and that's part of the "fun" 🤣

[–] MalReynolds@slrpnk.net 16 points 4 days ago

Nah, the fun is learning form others mistakes. Thanks for a fun read :}

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