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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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Do you think it is safe and secure to disable Mitigation in Fedora for the sake of performance? (lemmy.dbzer0.com)

submitted 2 years ago* (last edited 2 years ago) by Harry_h0udini@lemmy.dbzer0.com to c/linux@lemmy.ml

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I've seen a video from CTT demonstrating the <10 performance boosts by simply off the mitigation. The system will be secure for personal use as before.

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[–] dack@lemmy.world 0 points 2 years ago

The system will be secure for personal use as before.

I wouldn't be so sure of that. CPU side channels allow data to be leaked across security contexts. For example, from a user process to sandboxed JavaScript in a browser, from kernel space to user space, or from one containerized process to another. This is a problem even on a single user system without any VMs.

[–] db2@sopuli.xyz 0 points 2 years ago

Everything is secure until it isn't. I'd leave it on.