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authorNoah Misch <noah@leadboat.com>2023-11-06 06:14:13 -0800
committerNoah Misch <noah@leadboat.com>2023-11-06 06:14:17 -0800
commit7bbf4d03726200a8e42b48cac0b2a87abb7fb5fe (patch)
tree122c982b8b7998ea21612bbdd800838a712828bf
parent2893f2f40cfc2a7f6bd64b566f97140f8a379dd9 (diff)
downloadpostgresql-7bbf4d03726200a8e42b48cac0b2a87abb7fb5fe.tar.gz
postgresql-7bbf4d03726200a8e42b48cac0b2a87abb7fb5fe.zip
Set GUC "is_superuser" in all processes that set AuthenticatedUserId.
It was always false in single-user mode, in autovacuum workers, and in background workers. This had no specifically-identified security consequences, but non-core code or future work might make it security-relevant. Back-patch to v11 (all supported versions). Jelte Fennema-Nio. Reported by Jelte Fennema-Nio.
-rw-r--r--src/backend/utils/init/miscinit.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/backend/utils/init/miscinit.c b/src/backend/utils/init/miscinit.c
index f6c1e7491dd..425498c1a74 100644
--- a/src/backend/utils/init/miscinit.c
+++ b/src/backend/utils/init/miscinit.c
@@ -708,6 +708,14 @@ InitializeSessionUserIdStandalone(void)
AuthenticatedUserIsSuperuser = true;
SetSessionUserId(BOOTSTRAP_SUPERUSERID, true);
+
+ /*
+ * XXX This should set SetConfigOption("session_authorization"), too.
+ * Since we don't, C code will get NULL, and current_setting() will get an
+ * empty string.
+ */
+ SetConfigOption("is_superuser", "on",
+ PGC_INTERNAL, PGC_S_DYNAMIC_DEFAULT);
}