Bug ID 2534965: TMM may crash when an L7 policy condition has a specific number of match values

Last Modified: Oct 09, 2026

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

Known Affected Versions:
21.1.0, 21.1.0.1, 21.1.0.2

Opened: Sep 24, 2026

Severity: 3-Major

Symptoms

TMM crashes and restarts while evaluating an LTM policy condition

Impact

Traffic disrupted while TMM restarts

Conditions

When a policy condition's compiled distinct match-value count lands on a boundary, and that condition happens to be the one with the largest such count in the LTM policy

Workaround

You can work around this issue by adding or removing one value from the affected condition's list so the number of distinct match values is no longer on a boundary

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips