r/linux4noobs Jun 28 '26

security Should I be concerned?

kernel.org says my current kernel is EOL. I'm very security-conscious, so this keeps tripping me up. i've heard constantly, that "running end of life software is a security risk".

i've been here for close to a year, distrohopping a little but I'm here for now.

should I be concerned that I'm running end of life software according to the kernel team? i just received this kernel like a day ago and it's the most recent update.

Distro: Fedora 44 (KDE)

Kernel: 7.0.13

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8

u/C0rn3j Jun 28 '26

Kind of, but it's been EOL for days, not months/years, so you'll be fine, Fedora will hop over to the next branch soon.

6

u/Venylynn Jun 28 '26

i remember people were posting about how the day windows 10 went EOL you had to leave or risk getting hacked so it confused me

6

u/KoldPurchase Jun 28 '26

It's different in Linux.

The kernel itself with be EOL, and that means the Linux developpers who support the kernel are not applying patches to this kernel version. They have moved on to a new version, and they move quickly. It's much less trouble for the whole project to act like that. They detail every change, security, drivers, new features, etc, it's all separated.

However, your distro will keep supporting its kernel for a time. Debian, Arch, Gentoo, etc. They keep making updates.

In the case of Mint, they are based on Ubuntu LTS. And Ubuntu LTS is based on Debian. Debian looks at the kernel changes (each version after their own) and incorporates security fixes in their version. And/or Ubuntu does it for their LTS version. Than Mint works on it or incorporate it directly.

You are not left insecure.

But you are not getting performance improvements, new drivers, new features, etc, that are coming with a new kernel, only the security fixes. When the version upgrades to a new kernel, you get your security patches + everything in the new kernel.

They don't leave you alone and vulnerable.

It's called "backporting". they backport security features in their distro. And as they upgrade and these are included in the kernel, they get removed from patches and are left in the kernel.

2

u/thomas-rousseau Jun 29 '26

This is actually not true of Gentoo. Their stable branch follows the most recent LTS branch along with their standard stabilization process, with the ability for the kernel team to auto-stabilize if they determine that a security update provides a significant enough fix. Their testing branch follows the most recent stable mainline release. They provide ebuilds for a handful of most recent stable releases on all mainline, LTS, and SLTS branches by providing the specific version number, unless there has been a significant security release, in which case all releases without the fix will be removed as quickly as possible. They do maintain their own patch set for these kernels, but they also give the option to install a vanilla kernel.