diff --git a/ext/mysqlnd/mysqlnd_ps.c b/ext/mysqlnd/mysqlnd_ps.c
index 256bbe4d47a..41c024ab16f 100644
--- a/ext/mysqlnd/mysqlnd_ps.c
+++ b/ext/mysqlnd/mysqlnd_ps.c
@@ -122,7 +122,7 @@ MYSQLND_METHOD(mysqlnd_stmt, store_result)(MYSQLND_STMT * const s)
 	} else {
 		COPY_CLIENT_ERROR(conn->error_info, result->stored_data->error_info);
 		stmt->result->m.free_result_contents(stmt->result);
-		mnd_efree(stmt->result);
+		mnd_pefree(stmt->result, stmt->result->persistent);
 		stmt->result = NULL;
 		stmt->state = MYSQLND_STMT_PREPARED;
 	}
@@ -347,7 +347,7 @@ mysqlnd_stmt_prepare_read_eof(MYSQLND_STMT * s)
 		if (FAIL == (ret = PACKET_READ(fields_eof))) {
 			if (stmt->result) {
 				stmt->result->m.free_result_contents(stmt->result);
-				mnd_efree(stmt->result);
+				mnd_pefree(stmt->result, stmt->result->persistent);
 				/* XXX: This will crash, because we will null also the methods.
 					But seems it happens in extreme cases or doesn't. Should be fixed by exporting a function
 					(from mysqlnd_driver.c?) to do the reset.
diff --git a/ext/opcache/Optimizer/zend_cfg.c b/ext/opcache/Optimizer/zend_cfg.c
index 06cf266b9d8..0f0cabb2587 100644
--- a/ext/opcache/Optimizer/zend_cfg.c
+++ b/ext/opcache/Optimizer/zend_cfg.c
@@ -755,7 +755,7 @@ static void swap_blocks(block_info *a, block_info *b) {
 int zend_cfg_identify_loops(const zend_op_array *op_array, zend_cfg *cfg, uint32_t *flags) /* {{{ */
 {
 	int i, j, k, n;
-	int depth, time;
+	int time;
 	zend_basic_block *blocks = cfg->blocks;
 	int *entry_times, *exit_times;
 	zend_worklist work;
diff --git a/ext/pdo_mysql/tests/bug_74376.phpt b/ext/pdo_mysql/tests/bug_74376.phpt
new file mode 100644
index 00000000000..29b16748ffb
--- /dev/null
+++ b/ext/pdo_mysql/tests/bug_74376.phpt
@@ -0,0 +1,27 @@
+--TEST--
+Bug #74376 (Invalid free of persistent results on error/connection loss)
+--SKIPIF--
+<?php
+if (!extension_loaded('pdo') || !extension_loaded('pdo_mysql')) die('skip not loaded');
+require_once(dirname(__FILE__) . DIRECTORY_SEPARATOR . 'skipif.inc');
+require_once(dirname(__FILE__) . DIRECTORY_SEPARATOR . 'mysql_pdo_test.inc');
+MySQLPDOTest::skip();
+?>
+--FILE--
+<?php
+require_once(dirname(__FILE__) . DIRECTORY_SEPARATOR . 'mysql_pdo_test.inc');
+
+$attr = getenv('PDOTEST_ATTR');
+$attr = $attr ? unserialize($attr) : [];
+$attr[PDO::ATTR_PERSISTENT] = true;
+$attr[PDO::ATTR_EMULATE_PREPARES] = false;
+
+putenv('PDOTEST_ATTR=' . serialize($attr));
+
+$db = MySQLPDOTest::factory();
+$stmt = $db->query("select (select 1 union select 2)");
+
+print "ok";
+?>
+--EXPECTF--
+ok