"Go to Definition" crashes with BadImageFormatException for System.Net.IPEndPoint

[just-ero]

Version Used

Compiler: 4.12.0-3.24430.2 (2805273)
.NET: 9.0.100-rc.1.24452.12
Visual Studio Code: 1.93.1, 38c31bc77e0dd6ae88a4e9cc93428cc27a56ba40, x64
C# Extension: v2.46.32
C# Dev Kit Extension: v1.11.6

Steps to Reproduce

1. Create or open a C# project in Visual Studio Code (have not tested Visual Studio).
2. Use System.Net.IPEndPoint anywhere.
3. Attempt to navigate to the definition for IPEndPoint.

Expected Behavior

Navigation succeeds

Actual Behavior

It does not:

[Error - 3:34:50 AM] [LanguageServerHost] System.BadImageFormatException: Read out of bounds.
   at System.Reflection.Throw.OutOfBounds()
   at Microsoft.CodeAnalysis.PdbSourceDocument.DocumentDebugInfoReader.FindSourceDocuments(EntityHandle entityHandle) in /_/src/Features/Core/Portable/PdbSourceDocument/DocumentDebugInfoReader.cs:line 38
   at Microsoft.CodeAnalysis.PdbSourceDocument.PdbSourceDocumentMetadataAsSourceFileProvider.GetGeneratedFileAsync(MetadataAsSourceWorkspace metadataWorkspace, Workspace sourceWorkspace, Project sourceProject, ISymbol symbol, Boolean signaturesOnly, MetadataAsSourceOptions options, String tempPath, TelemetryMessage telemetryMessage, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/PdbSourceDocument/PdbSourceDocumentMetadataAsSourceFileProvider.cs:line 188
   at Microsoft.CodeAnalysis.MetadataAsSource.MetadataAsSourceFileService.GetGeneratedFileAsync(Workspace sourceWorkspace, Project sourceProject, ISymbol symbol, Boolean signaturesOnly, MetadataAsSourceOptions options, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/MetadataAsSource/MetadataAsSourceFileService.cs:line 108
   at Microsoft.CodeAnalysis.LanguageServer.Handler.AbstractGoToDefinitionHandler.GetDefinitionsAsync(IGlobalOptionService globalOptions, IMetadataAsSourceFileService metadataAsSourceFileService, Workspace workspace, Document document, Boolean typeOnly, LinePosition linePosition, CancellationToken cancellationToken) in /_/src/LanguageServer/Protocol/Handler/Definitions/AbstractGoToDefinitionHandler.cs:line 84
   at Microsoft.CommonLanguageServerProtocol.Framework.QueueItem`1.StartRequestAsync[TRequest,TResponse](TRequest request, TRequestContext context, IMethodHandler handler, String language, CancellationToken cancellationToken)
[Error - 3:34:50 AM] Request textDocument/definition failed.
  Message: Read out of bounds.
  Code: -32000

[just-ero]

Other types in System.Net appear to be affected as well. The same happens on IPAddress, for example.

[amcasey]

Just got this in my activity log

System.BadImageFormatException: Read out of bounds.
   at System.Reflection.Throw.OutOfBounds()
   at Microsoft.CodeAnalysis.PdbSourceDocument.DocumentDebugInfoReader.FindSourceDocuments(EntityHandle entityHandle)
   at Microsoft.CodeAnalysis.PdbSourceDocument.PdbSourceDocumentMetadataAsSourceFileProvider.<GetGeneratedFileAsync>d__10.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Microsoft.CodeAnalysis.MetadataAsSource.MetadataAsSourceFileService.<GetGeneratedFileAsync>d__9.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.VisualStudio.LanguageServices.Implementation.VisualStudioSymbolNavigationService.<GetNavigableLocationForMetadataAsync>d__8.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.VisualStudio.LanguageServices.Implementation.VisualStudioSymbolNavigationService.<GetNavigableLocationAsync>d__7.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.CodeAnalysis.FindUsages.DefinitionItem.DefaultDefinitionItem.<GetNavigableLocationAsync>d__3.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Microsoft.CodeAnalysis.Editor.Host.IStreamingFindUsagesPresenterExtensions.<GetStreamingLocationAsync>d__1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.CodeAnalysis.Navigation.AbstractDefinitionLocationService.<>c__DisplayClass4_0.<<GetDefinitionLocationAsync>g__GetSymbolLocationAsync|2>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.CodeAnalysis.Navigation.AbstractDefinitionLocationService.<>c__DisplayClass4_0.<<GetDefinitionLocationAsync>g__GetDefinitionLocationWorkerAsync|0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.CodeAnalysis.Navigation.AbstractDefinitionLocationService.<GetDefinitionLocationAsync>d__4.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.CodeAnalysis.Editor.NavigableSymbols.NavigableSymbolService.NavigableSymbolSource.<GetNavigableSymbolAsync>d__5.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.VisualStudio.Text.Utilities.GuardedOperations.<CallExtensionPointAsync>d__41`1.MoveNext()

C# Tools 4.12.0-3.24458.2+bd5c00e5e09de8564093f42d87fe49d4971f2e84

[just-ero]

I'm actually getting this same error in unrelated files as well, seemingly at random times.