Bug ID 1103833: Tmm core with SIGSEGV in gtmpoolmbr_UpdateStringProc

Last Modified: Sep 29, 2022

Bug Tracker

Affected Product:  See more info
BIG-IP GTM(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, 14.1.3.1, 14.1.4, 14.1.4.1, 14.1.4.2, 14.1.4.3, 14.1.4.4, 14.1.4.5, 14.1.4.6, 14.1.5, 14.1.5.1, 14.1.5.2

Opened: Apr 29, 2022
Severity: 2-Critical

Symptoms

Tmm cored with SIGSEGV.

Impact

Traffic disrupted while tmm restarts.

Conditions

-- iRule pool command with member which is determined at run-time -- A pool member is used for the iRule -- The previous pool member is deleted and then re-created using the same name -- That pool member is picked again for the next iRule event.

Workaround

Use a string command to category the pool member variable like this: pool dnspool member [string trim $pool_member]

Fix Information

None

Behavior Change