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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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Timing Flaw in systemd Cleanup Enables Root Privilege Escalation (cybersecurity88.com)

submitted 2 weeks ago by ChrisG@lemmy.world to c/linux@lemmy.ml

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Yet another critical vulnerability in systemd, this time involving snapd. Ubuntu folk are affected.

"A serious security issue has been discovered in Ubuntu, and it is gaining attention in the cybersecurity community. The vulnerability is identified as CVE-2026-3888 and mainly affects Ubuntu Desktop systems from version 24.04 onwards. This flaw is dangerous because it allows an attacker with limited access to gain full root privileges. Root access means complete control over the entire system."

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[–] FauxLiving@lemmy.world 2 points 2 weeks ago* (last edited 2 weeks ago)

What is the security hole in systemd?

You haven't answered this.

systemd-tmpfiles exists to delete inactive files in /tmp. That's not a security flaw, that's system maintenance. It's the documented purpose of systemd-tmpfiles and it performs exactly was documented.

The security hole is in snap-confine which does not verify that its own directory is owned by root before mounting it AS ROOT. That's the security hole.

So, again, what is the security hole in systemd?

If you don't have an answer then just say so. Resorting to name calling and trying to frame this as if I'm the irrational one is absurd.