kmod-lve module missing after GhostLock (CVE-2026-43499) kernel update — sites show "Resource Limit Is Reached" or 508 error

Issue

After updating to the GhostLock (CVE-2026-43499) patched kernel and rebooting, websites stop loading and return errors such as "Resource Limit Is Reached" or HTTP 508 (Loop Detected). LVE does not appear to be working even though the kernel update completed successfully.

Environment

• Component: LVE / CageFS (kmod-lve)
• Operating system: CloudLinux OS 7h, 8, 9, 10
• Version / package: kmod-lve; GhostLock-patched kernel (CVE-2026-43499)

Solution

The steps are the same on all CloudLinux versions.

1. Confirm that the LVE module is not loaded for the running kernel:

   uname -r
   lsmod | grep kmodlve
   modprobe kmodlve

   If lsmod shows nothing, modprobe reports "Module kmodlve not found", and no kmodlve.ko exists for the running kernel, continue.

2. Update kmod-lve to a build matching the running kernel, then confirm that the module now exists:

   yum update kmod-lve --enablerepo=cloudlinux-updates-testing

   The rollout repository is needed only while the matching build has not reached stable. Once it is available in stable, omit the --enablerepo flag.

3. Load the module and refresh CageFS:

   modprobe kmodlve
   lsmod | grep kmodlve
   lvectl apply all
   cagefsctl --force-update && cagefsctl -M

4. Verify the fix:
   • lsmod | grep kmodlve shows the module loaded.
   • lvectl list shows the expected non-zero limits.
   • The affected websites load normally again.

Cause

The LVE kernel module ships in the kmod-lve package as a build tied to specific kernel versions. When the kernel is updated to a build newer than the installed kmod-lve supports, there is no matching kmodlve.ko for the running kernel, so the module cannot load. Without LVE loaded, LVE and CageFS cannot enforce or account for resources, which breaks site delivery. The GhostLock advisory covers only the kernel update and does not mention kmod-lve, so this can appear on any server whose installed kmod-lve predates the newly installed patched kernel.

Useful Links

• GhostLock (CVE-2026-43499) Local Root Exploit: Kernel Update for CloudLinux