There are a few possible causes for this issue:
- In R75.40VS, when SecureXL is enabled, the mechanism in charge of inspecting connections and checking whether they already exist in the Connections Table can cause memory leaks.
- When IPS is enabled, several IPS protections cause memory not to be freed.
- There is a kernel table that holds the IPS information for each connection. Sometimes, when the connection ends, its information is not removed from the table, causing a memory leak.