Buffer overflow in Inference.Service.Agent.exe

[BitPoet]

VSCode:
Version: 1.109.0 (user setup)
Commit: bdd88df003631aaa0bcbe057cb0a940b80a476fa
Date: 2026-02-04T02:01:38.288Z
Electron: 39.3.0
ElectronBuildId: 13168319
Chromium: 142.0.7444.265
Node.js: 22.21.1
V8: 14.2.231.22-electron.0
OS: Windows_NT x64 10.0.26200

System:
Dell Pro 16 Plus, 32GB shared RAM, Core Ultra 5 238V with NPU

Steps performed:

• Installed AI Toolkit extension
• Downloaded Qwen 2.5 Coder 7B (Local Foundry)
• Installed .Net Runtime 9.0.12
• Restarted VSCode

I'm repeatedly getting system error popups now (translated from German so might be slightly off from English original):

Inference.Service.Agent.exe - System Error

The system detected the overflow of a stack based buffer in this application.
The overflow could enable a malicious user to acquire control over this application.

[timenick]

Hi BitPoet, could you please go to the location C:\Users\"accountname"\.vscode\extensions\ms-windows-ai-studio.windows-ai-studio-0.30.1-win32-x64\bin, launch Inference.Service.Agent.exe in terminal, and share the logs here? Thank you

[MartinSGill]

Same issue:

---------------------------
Inference.Service.Agent.exe - System Error
---------------------------
The system detected an overrun of a stack-based buffer in this application. This overrun could potentially allow a malicious user to gain control of this application. 
---------------------------
OK   
---------------------------

EDIT Didn't get the error running it directly as requested, only seems to happen when embedded in VSCode. It happened during shutdown... someone forget to implement something?

Logs:

.vscode\extensions\ms-windows-ai-studio.windows-ai-studio-0.30.1-win32-x64\bin\Inference.Service.Agent.exe

Execute icacls with arguments: "[SNIP]\.vscode\extensions\ms-windows-ai-studio.windows-ai-studio-0.30.1-win32-x64\bin" /grant "LOCAL SERVICE":(OI)(CI)F
Grant access output: processed file: [SNIP]\.vscode\extensions\ms-windows-ai-studio.windows-ai-studio-0.30.1-win32-x64\bin
Successfully processed 1 files; Failed processing 0 files

Grant access error:
Grant access exit code: 0
Package Full Name: AIToolkit.Inference.Agent_1.1.0.0_x64__8wekyb3d8bbwe
info: Microsoft.Neutron.OpenAI.Provider.WinAppSDKEpDetector[0]
      Creating new task to ensure and autoregister certified execution providers
info: Microsoft.Neutron.OpenAI.Provider.WinAppSDKEpDetector[0]
      Created task to ensure and autoregister certified execution providers
info: Microsoft.Neutron.OpenAI.Provider.WinAppSDKEpDetector[0]
      Finished initializing EPDetector
info: Microsoft.Neutron.OpenAI.Provider.WinAppSDKEpDetector[0]
      Attempt 1: Autoregistration of certified execution providers in progress.
info: Microsoft.Neutron.OpenAI.Provider.OpenAIServiceProviderOnnx[0]
      OpenAIService for type:OpenAIServiceProviderOnnx
info: Microsoft.Neutron.OpenAI.Provider.WinAppSDKEpDetector[0]
      Started autoregistering certified EPs
info: Microsoft.Neutron.OpenAI.Provider.OpenAIServiceProviderNIM[0]
      OpenAIService for type:OpenAIServiceProviderNIM
info: Microsoft.Hosting.Lifetime[14]
      Now listening on: http://localhost:5000
info: Microsoft.Hosting.Lifetime[0]
      Application started. Press Ctrl+C to shut down.
info: Microsoft.Hosting.Lifetime[0]
      Hosting environment: Production
info: Microsoft.Hosting.Lifetime[0]
      Content root path: [SNIP].vscode\extensions\ms-windows-ai-studio.windows-ai-studio-0.30.1-win32-x64\bin\
info: Microsoft.Neutron.OpenAI.Provider.WinAppSDKEpDetector[0]
      Provider 1/2: NvTensorRTRTXExecutionProvider is in NotReady state. Downloading and ensuring provider is ready.
info: Microsoft.Neutron.OpenAI.Provider.WinAppSDKEpDetector[0]
      Provider NvTensorRTRTXExecutionProvider download and ensuring ready attempt: Success
info: Microsoft.Neutron.OpenAI.Provider.WinAppSDKEpDetector[0]
      Provider 1/2: NvTensorRTRTXExecutionProvider is now in Ready state. Now registering provider.
info: Microsoft.Neutron.OpenAI.Provider.WinAppSDKEpDetector[0]
      Provider 1/2: NvTensorRTRTXExecutionProvider is successfully autoregistered and has ended in Ready state. It is installed at C:\Program Files\WindowsApps\MicrosoftCorporationII.WinML.NVIDIA.TRT-RTX.EP.1.8_1.8.22.0_x64__8wekyb3d8bbwe\ExecutionProvider\onnxruntime_providers_nv_tensorrt_rtx.dll. Download validation status: Certified
info: Microsoft.Neutron.OpenAI.Provider.WinAppSDKEpDetector[0]
      Provider 2/2: OpenVINOExecutionProvider is in NotReady state. Downloading and ensuring provider is ready.
info: Microsoft.Neutron.OpenAI.Provider.WinAppSDKEpDetector[0]
      Provider OpenVINOExecutionProvider download and ensuring ready attempt: Success
info: Microsoft.Neutron.OpenAI.Provider.WinAppSDKEpDetector[0]
      Provider 2/2: OpenVINOExecutionProvider is now in Ready state. Now registering provider.
info: Microsoft.Neutron.OpenAI.Provider.WinAppSDKEpDetector[0]
      Provider 2/2: OpenVINOExecutionProvider is successfully autoregistered and has ended in Ready state. It is installed at C:\Program Files\WindowsApps\MicrosoftCorporationII.WinML.Intel.OpenVINO.EP.1.8_1.8.63.0_x64__8wekyb3d8bbwe\ExecutionProvider\onnxruntime_providers_openvino_plugin.dll. Download validation status: Certified
info: Microsoft.Neutron.OpenAI.Provider.WinAppSDKEpDetector[0]
      Registering CUDA EP.
info: Microsoft.Neutron.OpenAI.Provider.WinAppSDKEpDetector[0]
      Registering CUDA Execution Provider: onnxruntime_providers_cuda.dll
info: Microsoft.Neutron.OpenAI.Provider.WinAppSDKEpDetector[0]
      CUDAExecutionProvider successfully registered.
info: Microsoft.Neutron.OpenAI.Provider.WinAppSDKEpDetector[0]
      Finished attempt to autoregister certified EPs; finished in 909ms
info: Microsoft.Neutron.OpenAI.Provider.WinAppSDKEpDetector[0]
      Successfully downloaded and registered the following EPs: NvTensorRTRTXExecutionProvider, OpenVINOExecutionProvider, CUDAExecutionProvider.
      Valid EPs: CPUExecutionProvider, WebGpuExecutionProvider, NvTensorRTRTXExecutionProvider, OpenVINOExecutionProvider, CUDAExecutionProvider

info: Microsoft.Hosting.Lifetime[0]
      Application is shutting down...
Unhandled exception. System.NotImplementedException: The method or operation is not implemented.
   at Microsoft.Neutron.OpenAI.Provider.OpenAIServiceProviderNIM.DisposeGeneratorCache(String) + 0x24
   at Microsoft.Neutron.OpenAI.Provider.OpenAIServiceProviderBase`1.DisposeInternal() + 0xd7
   at Microsoft.Neutron.OpenAI.DisposableBase.Dispose(Boolean) + 0x1e
   at Microsoft.Neutron.OpenAI.DisposableBase.Dispose() + 0x1d
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngineScope.DisposeAsync() + 0xb2
--- End of stack trace from previous location ---
   at Microsoft.Extensions.Hosting.Internal.Host.<DisposeAsync>d__20.MoveNext() + 0x17e
--- End of stack trace from previous location ---
   at Microsoft.Extensions.Hosting.HostingAbstractionsHostExtensions.<RunAsync>d__4.MoveNext() + 0x9c
--- End of stack trace from previous location ---
   at Microsoft.Neutron.OpenAI.Program.<LaunchAgent>d__1.MoveNext() + 0x137
--- End of stack trace from previous location ---
   at Microsoft.Neutron.OpenAI.Program.<LaunchAgent>d__1.MoveNext() + 0x2df
--- End of stack trace from previous location ---
   at Microsoft.Neutron.OpenAI.Program.<Main>d__0.MoveNext() + 0xe2
--- End of stack trace from previous location ---
   at Microsoft.Neutron.OpenAI.Program.<Main>(String[] args) + 0x24

[epopisces]

Getting the same error with version 0.31.2026021209

Can post my logs if you like, but they are nearly identical to those posted by MartinSGill above.