From 844e56e9ea9a56e04813886a6f7ded19a3af7f90 Mon Sep 17 00:00:00 2001 From: Thomas Munro Date: Mon, 14 Aug 2023 11:01:28 +1200 Subject: [PATCH 1/2] Invalidate smgr_targblock on release. In rare circumstances involving relfilenode reuse, it may be possible for smgr_targblock to finish up pointing past the end. Oversight in b74e94dc. Back-patch to 15. --- src/backend/storage/smgr/smgr.c | 1 + 1 file changed, 1 insertion(+) diff --git a/src/backend/storage/smgr/smgr.c b/src/backend/storage/smgr/smgr.c index f76c4605db..65e7436306 100644 --- a/src/backend/storage/smgr/smgr.c +++ b/src/backend/storage/smgr/smgr.c @@ -295,6 +295,7 @@ smgrrelease(SMgrRelation reln) { smgrsw[reln->smgr_which].smgr_close(reln, forknum); reln->smgr_cached_nblocks[forknum] = InvalidBlockNumber; + reln->smgr_targblock = InvalidBlockNumber; } } -- 2.39.2