Segmentation Fault Issue in PostgreSQL 13.4

I’m encountering a segmentation fault issue in PostgreSQL 13.4 when executing a specific function (cause_segfault()). The server process terminates with a signal 11 (Segmentation fault), but the database service continues running without a full shutdown.

Details:

      •     PostgreSQL Version: 13.4

      •     Environment: RHEL 8

      •     Steps to Reproduce:

      1.    Create function: CREATE FUNCTION cause_segfault() RETURNS void AS 'cause_segfault', 'cause_segfault' LANGUAGE C STRICT;

      2.    Execute function: SELECT cause_segfault();

Observations:

      •     Logs indicate the segmentation fault (LOG: server process (PID XXX) was terminated by signal 11: Segmentation fault).

Request for Assistance:

      •     Has anyone encountered similar issues with PostgreSQL 13.4?

      •     Are there known bugs or fixes related to segmentation faults in recent PostgreSQL versions?

      •     Any advice on troubleshooting or resolving this issue would be greatly appreciated.