Bug ID 851477: Memory allocation failures during proxy initialization are ignored leading to TMM cores

Last Modified: May 29, 2024

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

Known Affected Versions:
14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.5, 14.1.0.6, 14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 14.1.2.4, 14.1.2.5, 14.1.2.6, 14.1.2.7, 14.1.2.8, 14.1.3, 15.0.0, 15.0.1, 15.0.1.1, 15.0.1.2, 15.0.1.3, 15.0.1.4, 15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5

Fixed In:
16.0.0, 15.1.1, 14.1.3.1

Opened: Nov 20, 2019

Severity: 3-Major

Symptoms

Memory allocation failures during proxy initialization are ignored. TMM cores when trying to access uninitialized memory.

Impact

TMM cores when accessing uninitialized memory.

Conditions

-- HTTP or HTTP/2 virtual server with httprouter profile. -- Low memory or fragmented memory on the system when configuration is being loaded.

Workaround

No workaround.

Fix Information

Memory allocation failures are now detected and virtual server ends up in DENY state. No connections are accepted in this state.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips