BUG #17481: sometime pg_stat_statements coredump

The following bug has been logged on the website:

Bug reference:      17481
Logged by:          tangcheng
Email address:      mailtch@163.com
PostgreSQL version: 14.2
Operating system:   debian 11
Description:

In my database , use pg_stat_statement, but sometime, coredump
occurred，Details are as follows：

Using host libthread_db library"/lib/x86 64-1inux-gnu/libthread db.so.1"
Core was generated by `postgres: XXXX XXXXX(6294) CALL Program terminated
with signal SIGSEGV, Segmentation fault.
#0  0x0000556d1bc6ac9d in CleanQuerytext()
(gdb) bt
#0  0x0000556d1bc6ac9d in CleanQuerytext()
#1  0x00007f8450d3522f in pgss_store() from
/usr/local/pgsql-14.2/1ib/pg_stat_statements.so
#2  0x00007f8450d362bd in
pgss_ProcessUtility()from/usr/1ocal/pgsq1-14.2/1ib/pg_stat_statements.so 
#3  0x0000556d1bb42c7f in PortalRunUtility() 
#4  0x0000556d1bb42dab in PortalRunMulti () 
#5  0x0000556d1bb43275 in PortalRun()
#6  0x0000556d1bb409fe in PostgresMain () 
#7  0x0000556d1bac74f1 in ServerLoop()
#8 0x0000556d1bac8322 in PostmasterMain() 
#9 0x0000556d1b86d860 in main (()