WSL: unable to attach GDB to running process

Nessuno ha ancora preso questa issue.

Type: Bug

Update WSL v2 to the latest version available (2.5.10)
Install Ubuntu Noble
Update packages sudo apt update && sudo apt upgrade
Create CMake cpp project
Create launch.json with GDB attach rule:

    {
      "name": "(gdb) Attach",
      "type": "cppdbg",
      "request": "attach",
      "program": "${command:cmake.launchTargetPath}",
      "MIMode": "gdb",
      "miDebuggerPath": "/usr/bin/gdb",
      "setupCommands": [
        {
          "description": "Enable pretty-printing for gdb",
          "text": "-enable-pretty-printing",
          "ignoreFailures": true
        },
        {
          "description": "Set Disassembly Flavor to Intel",
          "text": "-gdb-set disassembly-flavor intel",
          "ignoreFailures": true
        }
      ]
    }

Build the app
Run the app from the terminal
Try to attach to the application

Expected result: Attach happens
Actual result: in the VS Code terminal appears message:

igor@UA1-WL-1096:~/dev/test-project$  /usr/bin/env /bin/sh /tmp/Microsoft-MIEngine-Cmd-i02lctjx.npx 
Superuser access is required to attach to a process. Attaching as superuser can potentially harm your computer. Do you want to continue? [y/N]

After pressing y in the terminal, attach operation fails with the message:

==== AUTHENTICATING FOR org.freedesktop.policykit.exec ====
Authentication is needed to run `/usr/bin/gdb --interpreter=mi --tty=/dev/pts/8' as the super user
Authenticating as: ,,, (igor)
Password: [1] + Stopped (tty output)       /usr/bin/pkexec "/usr/bin/gdb" --interpreter=mi --tty=${DbgTerm} 0<"/tmp/Microsoft-MIEngine-In-0eyyvmzt.oix" 1>"/tmp/Microsoft-MIEngine-Out-avnngkqi.oju"
You have stopped jobs.

Extension version: 1.26.3
VS Code version: Code 1.103.1 (360a4e4fd251bfce169a4ddf857c7d25d1ad40da, 2025-08-12T16:25:40.542Z)
OS version: Windows_NT x64 10.0.22631
Modes:
Remote OS version: Linux x64 6.6.87.2-microsoft-standard-WSL2

System Info

Item	Value
CPUs	AMD Ryzen 7 5800H with Radeon Graphics (16 x 3194)
GPU Status	2d_canvas: enabled direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok skia_graphite: disabled_off trees_in_viz: disabled_off video_decode: enabled video_encode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: enabled webnn: disabled_off
Load (avg)	undefined
Memory (System)	31.35GB (8.58GB free)
Process Argv	--folder-uri=vscode-remote://wsl+Ubuntu-24.04/home/igor/dev/watchdog --remote=wsl+Ubuntu-24.04 --crash-reporter-id 85d0539b-51da-4610-82b3-3584e6edaf97
Screen Reader	no
VM	0%

Item	Value
Remote	WSL: Ubuntu-24.04
OS	Linux x64 6.6.87.2-microsoft-standard-WSL2
CPUs	AMD Ryzen 7 5800H with Radeon Graphics (16 x 0)
Memory (System)	15.30GB (13.39GB free)
VM	0%

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Inizia dalla configurazione di attach di launch.json e dal comando generato /tmp/Microsoft-MIEngine-Cmd, quindi segui il modo in cui l’estensione invoca /usr/bin/gdb tramite pkexec in WSL. Riproduci il problema di autenticazione e l’errore del job arrestato usando le versioni elencate di VS Code, WSL e dell’estensione. Il lavoro è completato quando l’attach all’applicazione in esecuzione riesce senza l’errore del terminale.

Scritto dal modello di indicizzazione a partire dal testo della issue.

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