Server memory overflow crash

Hello

We have a big problem with our server. In random times the luv_tcp9 and the fivem process (linux) starting to eat our memory (129 GB) and on 100% memory the server chrases. We tried to kick all players when the memory overflow starts, but no changes. We started to search for a buggy script, but when this problem started we dont updated nothing on the server in 2 days. Today crashed other friendly server with the same way.

What/Who can cause this problem?

OS: Debian 11
Build: 5402

Ps: We tried windows and the server crashed with the same diagnose.

Windows etw stack trace:
win_fivem_dmp.etl (57.6 MB)

Does this still happen on a not-ancient release?

Also, probably some odd attack, going to need some repro for that though.