Bug ID 2241909: TMM crashes with backtrace pointing to "null rx virtual address"

Last Modified: Apr 24, 2026

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

Known Affected Versions:
16.1.0, 16.1.1, 16.1.2, 16.1.2.1, 16.1.2.2, 16.1.3, 16.1.3.1, 16.1.3.2, 16.1.3.3, 16.1.3.4, 16.1.3.5, 16.1.4, 16.1.4.1, 16.1.4.2, 16.1.4.3, 16.1.5, 16.1.5.1, 16.1.5.2, 16.1.6, 16.1.6.1, 17.1.0, 17.1.0.1, 17.1.0.2, 17.1.0.3, 17.1.1, 17.1.1.1, 17.1.1.2, 17.1.1.3, 17.1.1.4, 17.1.2, 17.1.2.1, 17.1.2.2, 17.1.3, 17.1.3.1

Opened: Mar 13, 2026

Severity: 3-Major

Symptoms

TMM crashes within a few seconds of restarting. Backtrace suggests "null rx virtual address".

Impact

TMM coring impacts data traffic processing.

Conditions

This happens on platforms that use HSB in the data path.

Workaround

If the TMM cores continuously, rebooting the device brings it back to a stable state. In case of vCMP environment, both the host and guest should be rebooted.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips