Merge branch 'PHP-7.4' into PHP-8.0

* PHP-7.4:
  Handle incomplete result set metadata more gracefully

Author: nikic

NEWS

@@ -16,6 +16,8 @@ PHP                                                                        NEWS
 - MySQLnd:
   . Fixed bug #78680 (mysqlnd's mysql_clear_password does not transmit
     null-terminated password). (Daniel Black)
+  . Fixed bug #80713 (SegFault when disabling ATTR_EMULATE_PREPARES and
+    MySQL 8.0). (Nikita)
 
 - MySQLi:
   . Fixed bug #74779 (x() and y() truncating floats to integers). (cmb)

ext/mysqlnd/mysqlnd_wireprotocol.c

@@ -1204,8 +1204,9 @@ php_mysqlnd_rset_field_read(MYSQLND_CONN_DATA * conn, void * _packet)
 		DBG_RETURN(PASS);
 	} else if (EODATA_MARKER == *p && packet->header.size < 8) {
 		/* Premature EOF. That should be COM_FIELD_LIST. But we don't support COM_FIELD_LIST anymore, thus this should not happen */
-		DBG_INF("Premature EOF. That should be COM_FIELD_LIST");
-		DBG_RETURN(PASS);
+		DBG_ERR("Premature EOF. That should be COM_FIELD_LIST");
+		php_error_docref(NULL, E_WARNING, "Premature EOF in result field metadata");
+		DBG_RETURN(FAIL);
 	}
 
 	meta = packet->metadata;