Your kernel, always protected

Security · Live Kernel Patching

KernelCare applies security patches directly in memory, without rebooting the server — zero downtime, continuous protection.

Choose a hosting plan Learn more
CloudLinux · KernelCare

Live patches, no reboot

KernelCare is the live kernel patching solution developed by CloudLinux Inc. Critical Linux kernel vulnerabilities are fixed automatically, in real time, without any interruption to your services.

On a traditional hosting server, applying a kernel patch requires a reboot — meaning downtime. KernelCare eliminates this problem entirely: the patch is injected directly into the running kernel code, without stopping it.

  • Patches applied within hours of the CVE being published
  • No maintenance windows or scheduled reboots
  • Protection against Spectre, Meltdown, Dirty Pipe and hundreds of other CVEs
  • Natively integrated with CloudLinux OS on all Trustnet Solutions plans
kernelcare — status 
KernelCare Status: ACTIVE ●
─────────────────────────────────────────
 Kernel activ : 5.14.0-284.11.1.el9
 Patch level  : 5.14.0-284.62.1.el9
 CVE patch-uite: 2,847
 Reboot necesar: NU
 Uptime server : 847 zile, 14 ore
─────────────────────────────────────────
Patching CVE-2024-1086 (Use-After-Free)... ✓
Patching CVE-2024-0646 (KTLS skb_orphan)... ✓
Patching CVE-2023-6931 (Heap overflow)... ✓
Why KernelCare

Security without compromise

Automatic patches, audited and delivered by the CloudLinux team for every Trustnet Solutions hosting plan.

No reboot

Patches are injected directly into the active kernel. The server stays online, applications continue without interruption.

Protection within hours

Critical CVEs are patched within hours of publication, not after days or weeks as happens with manual updates.

Complete coverage

Over 2,800 vulnerabilities fixed cumulatively — from local privilege exploits to memory bugs in network subsystems.

Zero downtime

No maintenance window, no scheduled reboot. Your uptime is protected just as well as your security.

CloudLinux integrated

KernelCare is delivered natively with CloudLinux OS on all Trustnet Solutions plans — it requires no additional configuration on your part.

Audit & reporting

Every applied patch is recorded with a timestamp, CVE ID and severity level — fully visible from the WHM panel.

How it works

Live patching in 3 steps

The process is fully automatic — it requires no intervention on your part.

1
CVE detected
CloudLinux Labs detects a critical Linux kernel vulnerability and immediately develops a specific patch.
2
Patch distributed
KernelCare receives the patch and injects it live into the running kernel code, without stopping or rebooting it.
3
Kernel protected
The server keeps running uninterrupted, now with the vulnerability fixed — the patch is recorded in the log with the CVE ID and timestamp.
Notable CVEs fixed

Proven protection against
the most severe exploits

KernelCare has fixed thousands of vulnerabilities, including some of the most publicized in Linux history.

CVE-2022-0847
Dirty Pipe
Critical

Overwriting read-only files through a pipe in kernel ≥ 5.8

CVE-2021-4034
PwnKit
Critical

Local privilege escalation via pkexec (Polkit)

CVE-2021-3156
Baron Samedit
Critical

Heap overflow in sudo — root without a password

CVE-2020-14386
Net Overflow
Critical

Memory corruption in AF_PACKET → root escalation

CVE-2018-3620
Foreshadow / L1TF
High

Speculative execution — data leak from the L1 data cache

CVE-2018-3639
Spectre v4
High

Speculative Store Bypass — cross-process data leak

Frequently asked questions

Have questions about KernelCare?

Automatic security

Patches are applied without intervention — you don't have to do anything.

Uninterrupted uptime

No reboots, no maintenance windows on Trustnet Solutions plans.

KernelCare is a live kernel patching solution developed by CloudLinux Inc. Its importance comes from the fact that Linux kernel vulnerabilities are among the most severe — they can allow escalation to root privileges or data theft between accounts. KernelCare fixes these vulnerabilities automatically, without rebooting the server.

No. This is the central advantage of KernelCare over traditional updates. The patch is injected directly into the active kernel memory. The server, sites and applications keep running without any interruption.

Yes. KernelCare is delivered together with CloudLinux OS on all Trustnet Solutions plans — Starter, Classic, Advanced and Professional. It requires no additional configuration or extra cost on your part.

Server administrators can check the KernelCare status from WHM (Web Host Manager), where there is a dedicated section with the full list of applied patches, the date and the CVE ID of each. As a cPanel user, you can request a report from the Trustnet Solutions support team at any time.

The impact is negligible. The patch injection process takes milliseconds and does not involve stopping or restarting any process. There is no measurable degradation of your site or application performance during live patching.

The kernel protected, included in any plan

KernelCare runs automatically on all Trustnet Solutions servers. Choose the right plan and benefit from live patching without any additional configuration.

No reboots, no maintenance windows. Continuous, transparent security, included from day one.

View hosting plans Contact us