release 2.169.1 runner.

* Dont check if path starts with null

* Check SourceVolumePath not MountVolume obj

* Prefer string.IsNullOrEmpty

releaseNote.md

@@ -1,9 +1,10 @@
 ## Features
-  - Runner support for GHES Alpha (#381 #386 #390 #393 $401) 
+  - Better telemetry tracing for self-hosted runner. (#405)
-  - Allow secrets context in Container.env (#388)
+  - Launch middle man process on macOS to workaround SIP limit (#416)
+  - Added support for custom labels (#414, #425)
+  - support 'pre' execution for actions. (#389)
 ## Bugs
-  - Raise warning when volume mount root. (#413)
+  - ArgumentNullException: Value cannot be null, for anonymous volume mounts (#426)
-  - Fix typo (#394)
 ## Misc
   - N/A
 

releaseVersion

@@ -1 +1 @@
-2.168.0
+2.169.1

src/Runner.Worker/Handlers/StepHost.cs

@@ -110,9 +110,9 @@ namespace GitHub.Runner.Worker.Handlers
 
             // try to resolve path inside container if the request path is part of the mount volume
 #if OS_WINDOWS
-            if (Container.MountVolumes.Exists(x => path.StartsWith(x.SourceVolumePath, StringComparison.OrdinalIgnoreCase)))
+            if (Container.MountVolumes.Exists(x => !string.IsNullOrEmpty(x.SourceVolumePath) && path.StartsWith(x.SourceVolumePath, StringComparison.OrdinalIgnoreCase)))
 #else
-            if (Container.MountVolumes.Exists(x => path.StartsWith(x.SourceVolumePath)))
+            if (Container.MountVolumes.Exists(x => !string.IsNullOrEmpty(x.SourceVolumePath) && path.StartsWith(x.SourceVolumePath)))
 #endif
             {
                 return Container.TranslateToContainerPath(path);

src/runnerversion

@@ -1 +1 @@
-2.169.0
+2.169.1