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Check criticalSharedRelcachesBuilt in GetSharedSecurityLabel(). 

An extension may want to call GetSecurityLabel() on a shared object
before the shared relcaches are fully initialized. For instance, a
ClientAuthentication_hook might want to retrieve the security label on
a role.

Discussion: https://postgr.es/m/ecb7af0b26e3be1d96d291c8453a86f1f82d9061.camel@j-davis.com
Backpatch-through: 9.6
This commit is contained in:
Jeff Davis 2021-10-14 12:26:26 -07:00
parent 5ec87619bc
commit ae6abeb880
1 changed files with 2 additions and 2 deletions
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4
src/backend/commands/seclabel.c
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@ -168,8 +168,8 @@ GetSharedSecurityLabel(const ObjectAddress *object, const char *provider)
pg_shseclabel = heap_open(SharedSecLabelRelationId, AccessShareLock);
scan = systable_beginscan(pg_shseclabel, SharedSecLabelObjectIndexId, true,
NULL, 3, keys);
scan = systable_beginscan(pg_shseclabel, SharedSecLabelObjectIndexId,
criticalSharedRelcachesBuilt, NULL, 3, keys);
tuple = systable_getnext(scan);
if (HeapTupleIsValid(tuple))