Fix registry key handle leak in EventLogEntry. (#118771)

BarbonBvv · web-flow · commit c0038ceb652e · 2025-08-16T00:02:24.000-07:00
diff --git a/src/libraries/System.Diagnostics.EventLog/src/System/Diagnostics/EventLogEntry.cs b/src/libraries/System.Diagnostics.EventLog/src/System/Diagnostics/EventLogEntry.cs
@@ -377,7 +377,8 @@ private static RegistryKey GetSourceRegKey(string logName, string source, string
             try
             {
                 eventKey = EventLog.GetEventLogRegKey(machineName, false);
-                return eventKey?.OpenSubKey(logName ?? "Application", /*writable*/false)?.OpenSubKey(source, /*writeable*/false);
+                logKey = eventKey?.OpenSubKey(logName ?? "Application", /*writable*/false);
+                return logKey?.OpenSubKey(source, /*writeable*/false);
             }
             finally
             {

Original file line number	Diff line number	Diff line change
`@@ -377,7 +377,8 @@ private static RegistryKey GetSourceRegKey(string logName, string source, string`
`377`	`377`	`try`
`378`	`378`	`{`
`379`	`379`	`eventKey = EventLog.GetEventLogRegKey(machineName, false);`
`380`		`- return eventKey?.OpenSubKey(logName ?? "Application", /writable/false)?.OpenSubKey(source, /writeable/false);`
	`380`	`+ logKey = eventKey?.OpenSubKey(logName ?? "Application", /writable/false);`
	`381`	`+ return logKey?.OpenSubKey(source, /writeable/false);`
`381`	`382`	`}`
`382`	`383`	`finally`
`383`	`384`	`{`