Bug ID 2014373: Fix for TMM Core SIGSEGV in spva_gl_ddos_find_tuples Due to NULL Grey List Flood Entry

Last Modified: Oct 19, 2025

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

Known Affected Versions:
17.1.2.1, 17.1.2.2, 17.1.3

Opened: Aug 08, 2025

Severity: 2-Critical

Symptoms

TMM core analysis suggests that spva code received a FSD from HSB with type 14 (sPVA FSD). When the code was processing FSD, TMM crashed as the grey list flood entry was NULL. This entry was NULL on all TMM threads.

Impact

TMM crashed

Conditions

The issue occurs when sPVA code receives an FSD of type 14 from HSB, and during processing, the corresponding grey list flood entry is NULL across all TMM threads, causing a TMM crash.

Workaround

None

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips