Bug ID 460197: BIG-IP Stratos 2200s and 4200v LTM xdata memory leak

Last Modified: Jul 18, 2026

Affected Product(s):
BIG-IP LTM(all modules)

Known Affected Versions:
11.5.1, 11.5.1 hf1, 11.5.1 hf2, 11.5.1 hf3, 11.5.1 hf4, 11.5.1 hf5, 11.5.1 hf6, 11.5.1 hf7, 11.5.1 hf8, 11.5.1 hf9, 11.5.1 hf10, 11.5.1 hf11, 11.5.2, 11.5.2 hf1, 11.5.3, 11.5.3 hf1, 11.5.3 hf2, 11.5.4, 11.5.4 hf1, 11.5.4 hf2, 11.5.4 hf3, 11.5.4 hf4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10

Fixed In:
11.6.0, 11.6.0

Opened: May 01, 2014

Severity: 2-Critical

Related Article: K15955

Symptoms

This applies only to Stratos 2200s and 4200v platforms. Resetting connections with compressed content might not perform a complete clean-up.

Impact

The incomplete reset results in orphaned xfrags and active_requests growing without bound. New requests on the affected virtual server will stall.

Conditions

Manifests when there is a reset on the flow. The resets slowly accumulate xfrags and active_requests.

Workaround

none

Fix Information

active_requests is updated when a flow using hardware acceleration is reset.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips