Bug ID 485189: TMM might crash if unable to find persistence cookie

Last Modified: Apr 28, 2025

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

Known Affected Versions:
11.5.0, 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, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4

Fixed In:
11.6.0 HF5, 11.5.2

Opened: Oct 17, 2014

Severity: 2-Critical

Related Article: K16187

Symptoms

TMM might crash and generate a core if unable to find persistence cookie.

Impact

Traffic disrupted while tmm restarts.

Conditions

Although specific conditions for this issue are unknown, it is possibly due to having a virtual with cookie persistence enabled and iRules that disable persistence.

Workaround

None

Fix Information

TMM now verifies that a persistence cookie was successfully found before extracting it from HTTP responses.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips