Invalidate smgr_targblock in smgrrelease(). In rare circumstances involving relfilenode reuse, it might have been possible for smgr_targblock to finish up pointing past the end.
Oversight in b74e94dc. Back-patch to 15. Reviewed-by: Heikki Linnakangas <hlinn...@iki.fi> Discussion: https://postgr.es/m/CA%2BhUKGJ8NTvqLHz6dqbQnt2c8XCki4r2QvXjBQcXpVwxTY_pvA%40mail.gmail.com Branch ------ REL_16_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/6337e994e89797d60b68ac6786c6a322ac00a382 Modified Files -------------- src/backend/storage/smgr/smgr.c | 1 + 1 file changed, 1 insertion(+)