Last Modified: Mar 26, 2025
Affected Product(s):
BIG-IP TMOS
Known Affected Versions:
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, 17.1.2, 17.1.2.1, 17.5.0
Opened: Jan 29, 2025 Severity: 3-Major
Occasionally, tmsh processes are orphaned when a user connects to the BIG-IP system via SSH, runs commands, and then quits the session or disconnects. An orphaned tmsh process will have a parent pid (PPID) of 1. You can check for orphaned tmsh processes using the following shell command: /bin/ps -o pid,ppid,comm -C tmsh PID PPID COMMAND 8255 1 tmsh If this issue occurs often enough, it might cause the BIG-IP system to run out of memory.
Orphaned tmsh processes are created, which might eventually lead to an out-of-memory condition, if it occurs often enough.
-- Using tmsh to connect to the BIG-IP system via SSH. -- Running commands. -- Quitting the session or disconnecting.
There are several workarounds for this issue: -- Change the default shell to bash for users that are going to use the script. -- Use iControl. -- Kill orphaned tmsh processes.
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