Memory leak on Security Gateway cluster members

Product: Security Gateways
Version: R81.10 (EOS), R81.20, R82
OS: Gaia
Last Modified: 2026-01-29

Symptoms

• Continuous increase in memory usage on Security Gateway cluster members.
• Memory usage does not correlate with the number of connections.
• Long-lived connections are observed in the connections table.
• Cluster instability, including issues with ClusterXL Fullsync and Critical Devices (pnotes), requiring failover and reboots to restore service.

Cause

In the Application Control Rule Base when an "any-any" rule is configured with long-lived connections, each packet match appends the application signature to the connection without verifying if the signature already exists, causing an ever-growing list of duplicate signatures.

Solution

This problem was fixed. The fix is included in:

• Check Point Quantum R82.10
• Jumbo Hotfix Accumulator for R82 starting from Take 60
• Jumbo Hotfix Accumulator for R81.20 starting from Take 120
• Jumbo Hotfix Accumulator for R81.10 starting from Take 183

If you choose not to upgrade, Check Point can supply a Hotfix. Contact Check Point Support to get a Hotfix for this issue.

A Support Engineer will make sure the Hotfix is compatible with your environment before providing the Hotfix.

For faster resolution and verification, please collect CPinfo files from the Security Management Server and Security Gateways involved in the case.

Hotfix installation instructions:
Refer to sk168597 - How to install a Hotfix.

NOTE

This solution has been verified for the specific scenario, described by the combination of Product, Version and Symptoms. It may not work in other scenarios.

Article Properties

Access Level: General
Status: Approved by TAC
Date Created: 2025-10-17
Last Modified: 2026-01-29