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commit    3f5d481ef5725494f8737db6f300a2c42afa915d
Author:   Jeff Davis <jdavis@postgresql.org>
Date:     Thu Oct 14 19:25:30 2021 +0000
First released in: 15.0, 9.6.24, 10.19, 11.14, 12.9, 13.5, 14.1

    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


 src/backend/commands/seclabel.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/backend/commands/seclabel.c b/src/backend/commands/seclabel.c
index 5ee46905d84..1ce62b1e2ca 100644
--- a/src/backend/commands/seclabel.c
+++ b/src/backend/commands/seclabel.c
@@ -169,8 +169,8 @@ 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))


[parent: 6287b8e195f3]