Bug ID 1637797: Memory leak in TMM of TCL memory when a procedure is called with too few arguments

Last Modified: Oct 04, 2024

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

Known Affected Versions:
15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1, 15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1, 15.1.4, 15.1.4.1, 15.1.5, 15.1.5.1, 15.1.6, 15.1.6.1, 15.1.7, 15.1.8, 15.1.8.1, 15.1.8.2, 15.1.9, 15.1.9.1, 15.1.10, 15.1.10.2, 15.1.10.3, 15.1.10.4, 15.1.10.5, 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, 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

Opened: Sep 04, 2024

Severity: 3-Major

Symptoms

TMM memory growth over time. There may be an error message in the LTM log similar to: 01220001:3: TCL error: /Common/irule <CLIENT_ACCEPTED> - wrong # args: should be "call my_proc <arg1> <arg2> while executing "call my_proc $variable" Note that the LTM log message may be throttled and not visible in the current logs.

Impact

- Memory leak in TMM. - TMM experiences an out-of-memory state and might crash.

Conditions

An iRule calls a procedure with insufficient arguments.

Workaround

Ensure that the called procedure provides enough arguments.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips