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| author | Thomas Munro <tmunro@postgresql.org> | 2023-09-13 14:32:24 +1200 |
|---|---|---|
| committer | Thomas Munro <tmunro@postgresql.org> | 2023-09-13 14:43:04 +1200 |
| commit | a26cc0334f8b02c949b68d6ba9061eeb1fa75498 (patch) | |
| tree | f01b054328d32ed8ab522c554583eb1f269b20d0 /src/backend/optimizer/plan/setrefs.c | |
| parent | 75b4f930d5db097e2db7ce5235476c1bf6f70da4 (diff) | |
| download | postgresql-a26cc0334f8b02c949b68d6ba9061eeb1fa75498.tar.gz postgresql-a26cc0334f8b02c949b68d6ba9061eeb1fa75498.zip | |
Fix exception safety bug in typcache.c.
If an out-of-memory error was thrown at an unfortunate time,
ensure_record_cache_typmod_slot_exists() could leak memory and leave
behind a global state that produced an infinite loop on the next call.
Fix by merging RecordCacheArray and RecordIdentifierArray into a single
array. With only one allocation or re-allocation, there is no
intermediate state.
Back-patch to all supported releases.
Reported-by: "James Pang (chaolpan)" <chaolpan@cisco.com>
Reviewed-by: Michael Paquier <michael@paquier.xyz>
Discussion: https://postgr.es/m/PH0PR11MB519113E738814BDDA702EDADD6EFA%40PH0PR11MB5191.namprd11.prod.outlook.com
Diffstat (limited to 'src/backend/optimizer/plan/setrefs.c')
0 files changed, 0 insertions, 0 deletions