Bug ID 603667: TMM may leak or corrupt memory when configuration changes occur with plugins in use

Last Modified: Nov 07, 2022

Bug Tracker

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

Known Affected Versions:
11.5.0, 11.5.1, 11.5.1 HF1, 11.5.1 HF10, 11.5.1 HF11, 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, 11.5.10, 11.5.2, 11.5.2 HF1, 11.5.3, 11.5.3 HF1, 11.5.3 HF2, 11.5.4, 11.5.4 HF1, 11.5.4 HF2, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8, 11.6.1, 11.6.1 HF1, 11.6.1 HF2, 12.0.0, 12.0.0 HF1, 12.0.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2

Fixed In:
13.0.0, 12.1.2 HF1, 11.6.2, 11.5.4 HF3

Opened: Jul 08, 2016
Severity: 2-Critical
Related Article:
K50451000

Symptoms

TMM may leak memory when plugins are in use and the plugin is re-initialized (typically due to configuration changes). In rare cases, memory corruption may occur causing TMM to restart.

Impact

The memory leakage generally occurs infrequently and at a rate that TMM operations are not affected. However, when memory corruption occurs, a traffic interruption may occur due to TMM restarting.

Conditions

Plugin-based functionality configured (ASM, APM, etc.) and configuration changes occur.

Workaround

No workaround except disabling plugin-based functionality (such as ASM, APM, etc.).

Fix Information

TMM now properly manages plugin memory, and no longer leaks or corrupts this memory.

Behavior Change