Bug ID 575735: Potential MCPd leak in global CPU info stats code

Last Modified: Oct 16, 2023

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

Known Affected Versions:
11.0.0, 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, 11.5.1 HF1, 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, 11.5.1 HF10, 11.5.1 HF11, 11.5.2 HF1, 11.5.3 HF1, 11.5.3 HF2, 11.5.4 HF1, 11.1.0, 11.2.0, 11.2.1, 11.3.0, 11.4.0, 11.4.1, 11.6.0, 11.6.1, 11.6.2, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2

Fixed In:
13.0.0, 12.1.0, 11.6.1 HF1, 11.5.4 HF2

Opened: Feb 23, 2016

Severity: 3-Major

Related Article: K50553071

Symptoms

MCPd leaks memory; the umem_alloc_8 cache will grow.

Impact

MCPd might eventually run out of memory and core.

Conditions

In some cases, querying global CPU information stats can leak memory.

Workaround

None.

Fix Information

This release fixes the memory leak that could occur when querying global CPU information stats.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips