Bug ID 824881: A rare TMM crash cause by the fix for ID 816625

Last Modified: Mar 27, 2020

Bug Tracker

Affected Product:  See more info
BIG-IP LTM(all modules)

Known Affected Versions:
14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.4, 14.1.0.5, 14.1.0.6, 14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 15.0.0, 15.0.1

Fixed In:
15.1.0, 15.0.1.1

Opened: Sep 11, 2019
Severity: 2-Critical

Symptoms

In rare scenarios involving HTTP unchunking and plugins, the TMM may crash.

Impact

In addition, other plugin behavior may abort the unchunking logic in an unexpected way. This causes a double-abort, and triggers a TMM crash. Traffic disrupted while tmm restarts.

Conditions

Software that contains the fix for ID 816625, which involves HTTP unchunking and some plugins, dynamically removing the unchunking logic when required.

Workaround

None.

Fix Information

The TMM no longer crashes in a rare scenario involving HTTP unchunking and plugins.

Behavior Change