diff options
| author | Thomas Munro | 2023-08-17 03:45:13 +0000 |
|---|---|---|
| committer | Thomas Munro | 2023-08-17 03:45:13 +0000 |
| commit | 81e36d3e0df8d3d7a3daa2e2216f96df23ffc96a (patch) | |
| tree | 18df3ee7f48cd21fcccd7057d98864a18a2f7e81 | |
| parent | d3c25ca1bf59bc4ccf589942f94bc5b945b1f46f (diff) | |
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 <hlinnaka@iki.fi>
Discussion: https://postgr.es/m/CA%2BhUKGJ8NTvqLHz6dqbQnt2c8XCki4r2QvXjBQcXpVwxTY_pvA%40mail.gmail.com
| -rw-r--r-- | src/backend/storage/smgr/smgr.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/backend/storage/smgr/smgr.c b/src/backend/storage/smgr/smgr.c index f76c4605dbb..5d0f3d515c3 100644 --- a/src/backend/storage/smgr/smgr.c +++ b/src/backend/storage/smgr/smgr.c @@ -296,6 +296,7 @@ smgrrelease(SMgrRelation reln) smgrsw[reln->smgr_which].smgr_close(reln, forknum); reln->smgr_cached_nblocks[forknum] = InvalidBlockNumber; } + reln->smgr_targblock = InvalidBlockNumber; } /* |