KernelCare: Live Kernel Patching Without Reboots
KernelCare applies security patches to running kernels instantly. No reboots, no maintenance windows. The agent checks every 4 hours and covers 60+ Linux distributions.
Kernel security fixes apply while connections stay live, with no reboot or maintenance window.
The KernelCare agent checks for new patches every 4 hours and applies them automatically.
Most patches ship within 10 days of CVE disclosure, keeping your compliance audit current.
One avoided reboot pays for a full year, and there's no contract.
How Live Patching Works
A lightweight agent fetches new kernel fixes from KernelCare’s patch feed and loads them straight into the running kernel. Connections stay open throughout. Patches ship within 10 days of CVE disclosure.
curl -s -L https://kernelcare.com/installer | bash
kcarectl --register <license-key>Covers 60+ distribution versions including CloudLinux, AlmaLinux, Rocky, RHEL, Ubuntu LTS, Debian, Oracle Linux, and Amazon Linux.
KernelCare Features
Automated Patching
The KernelCare agent runs on a 4-hour patch cycle. New security fixes arrive and apply automatically, with no manual steps.
Live Patching
Patches load directly into kernel memory. No reboot, no maintenance window, no interrupted connections.
Automatic or Managed Mode
Set it to automatic for hands-off production servers, or switch to managed when you want to review each patch in staging before it rolls out.
Easy Rollbacks
One command (kcarectl --unload) reverts all applied patches instantly.
60+ Distros Supported
Rocky Linux, AlmaLinux, Ubuntu, Debian, RHEL, Oracle Linux, Amazon Linux, and more. One agent covers them all.
KernelCare Pricing
KernelCare License
$3.50/month
Per server. No minimum commitment. Add or remove licenses anytime.
Supported Operating Systems
- AlmaLinux / Rocky Linux / RHEL
- CloudLinux
- Ubuntu LTS & Debian
- Oracle Linux & Amazon Linux
Common Questions
What does KernelCare do?
KernelCare applies supported Linux kernel security patches to a running server without requiring a reboot or maintenance window.
Which operating systems are supported?
KernelCare supports many production Linux distributions, including AlmaLinux, Rocky Linux, RHEL, CloudLinux, Ubuntu LTS, Debian, Oracle Linux, and Amazon Linux.
Can patches be rolled back?
Yes. KernelCare supports unloading applied patches, so an engineer can roll back a patch set without rebooting the server.
No matching questions found.
Ready to Add KernelCare?
An engineer will confirm your server is compatible and configure the KernelCare agent for automated patching.