Bug ID 649234: TMM crash from a possible memory corruption.

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.5.4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10, 11.6.0, 11.6.1, 11.6.2, 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, 12.1.0, 12.1.1, 12.1.2, 12.1.3, 12.1.3.1, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3

Fixed In:
13.1.0, 13.0.1, 12.1.3.2, 11.6.3

Opened: Mar 06, 2017

Severity: 2-Critical

Related Article: K64131101

Symptoms

When APM resumes an iRule event from an asynchronous session data lookup, the resumption fails due to a bad memory access resulting in a crash.

Impact

Traffic disrupted while tmm restarts.

Conditions

The following must be true for this to happen: - APM provisioned and licensed. - Use of APM iRule events. - Session data lookup from iRule events.

Workaround

None.

Fix Information

Access to an invalid or stale Access session result from custom iRules no longer causes TMM crash.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips