System.ArgumentNullException on new MutexAccessRule #111060
Description
Description
Since the last System.Threading.AccessControl package update from version 8.0.0 to 9.0.0, trying to run the MutexAccessRule ctor gives a System.ArgumentNullException: 'Value cannot be null. (Parameter 'identity')'
Returning to version 8.0.0 "corrects" the problem.
Reproduction Steps
I have a "single application instance" detection function, using the "classic" Mutex approach:
var identity = new SecurityIdentifier(WellKnownSidType.WorldSid, null);
var allowEveryoneRule = new MutexAccessRule(identity, MutexRights.FullControl, AccessControlType.Allow); // <-- Exception here!
var securitySettings = new MutexSecurity();
securitySettings.AddAccessRule(allowEveryoneRule);
var mutex = new Mutex(true, __MUTEX_ID, out createdNew);
mutex.SetAccessControl(securitySettings);
Expected behavior
This line:
var allowEveryoneRule = new MutexAccessRule(identity, MutexRights.FullControl, AccessControlType.Allow);
should create a new MutexAccessRule instance. On package version 8.0.0, it correctly does.
Actual behavior
This line:
var allowEveryoneRule = new MutexAccessRule(identity, MutexRights.FullControl, AccessControlType.Allow);
throws
System.ArgumentNullException: 'Value cannot be null. (Parameter 'identity')'
on package version 9.0.0.
Regression?
Package version 9.0.0 fails. Version 8.0.0 works.
Known Workarounds
No response
Configuration
- NET Version: net6.0-windows
My desktop computer:
- Windows 10 Pro, version 22H2 (19045.5247)
- x64 Intel Core i5
Also the same behaviour on the server machine:
- Windows 10 Pro, version 22H2 (19045.3930)
- x64 Intel Xeon E5
Other information
No response