0001-Prevent-pg_enable-disable_data_checksums-on-standby.patch
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Filename: 0001-Prevent-pg_enable-disable_data_checksums-on-standby.patch
Type: application/octet-stream
Part: 0
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Format: format-patch
Series: patch 0001
Subject: Prevent pg_enable/disable_data_checksums() on standby
| File | + | − |
|---|---|---|
| src/backend/postmaster/datachecksum_state.c | 4 | 0 |
From 128afeb5d8893b933372fda1bb865e18c9285c96 Mon Sep 17 00:00:00 2001
From: Satya Narlapuram <satyanarlapuram@gmail.com>
Date: Wed, 8 Apr 2026 07:19:28 +0000
Subject: [PATCH] Prevent pg_enable/disable_data_checksums() on standby
These functions missed a RecoveryInProgress() check, allowing them to
be called on a hot standby. Adding checks to prevent them from running
on a standby.
---
src/backend/postmaster/datachecksum_state.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/src/backend/postmaster/datachecksum_state.c b/src/backend/postmaster/datachecksum_state.c
index 1243949e..0d21e7fe 100644
--- a/src/backend/postmaster/datachecksum_state.c
+++ b/src/backend/postmaster/datachecksum_state.c
@@ -487,6 +487,8 @@ AbsorbDataChecksumsBarrier(ProcSignalBarrierType barrier)
Datum
disable_data_checksums(PG_FUNCTION_ARGS)
{
+ PreventCommandDuringRecovery("pg_disable_data_checksums()");
+
if (!superuser())
ereport(ERROR,
errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
@@ -507,6 +509,8 @@ enable_data_checksums(PG_FUNCTION_ARGS)
int cost_delay = PG_GETARG_INT32(0);
int cost_limit = PG_GETARG_INT32(1);
+ PreventCommandDuringRecovery("pg_enable_data_checksums()");
+
if (!superuser())
ereport(ERROR,
errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
--
2.43.0