Bug ID 1555437: QUIC virtual server with drop in CLIENT_ACCEPTED crashes TMM

Last Modified: May 29, 2024

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

Known Affected Versions:
16.1.4.2, 16.1.4.3

Opened: Mar 05, 2024

Severity: 3-Major

Symptoms

TMM crashes on connection if the drop is executed in an iRule on CLIENT_ACCEPTED event.

Impact

Traffic is disrupted while restarting TMM.

Conditions

If an iRule contains a drop that is executed on CLIENT_ACCEPTED or CLIENT_DATA on a virtual server supporting HTTP3 (QUIC/UDP) then TMM crashes.

Workaround

In iRule use FLOW_INIT as the event instead of CLIENT_ACCEPTED to call drop.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips