From 97369cc9d9d085d57abd9c32072573bd1cf4aed1 Mon Sep 17 00:00:00 2001
From: Matthew John Cheetham <mjcheetham@outlook.com>
Date: Tue, 3 Feb 2026 13:47:43 +0000
Subject: [PATCH] wslutils: guard against failure to launch pwsh

Let's not crash the process if we are unable to launch PowerShell to
determine the Windows session ID.

Signed-off-by: Matthew John Cheetham <mjcheetham@outlook.com>
---
 src/shared/Core/WslUtils.cs | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/shared/Core/WslUtils.cs b/src/shared/Core/WslUtils.cs
index 1db63d329..977677d6e 100644
--- a/src/shared/Core/WslUtils.cs
+++ b/src/shared/Core/WslUtils.cs
@@ -195,8 +195,16 @@ public static int GetWindowsSessionId(IFileSystem fs)
                 const string script = @"(Get-Process -ID $PID).SessionId";
                 using (Process proc = CreateWindowsShellProcess(fs, WindowsShell.PowerShell, script))
                 {
-                    proc.Start();
-                    proc.WaitForExit();
+                    try
+                    {
+                        proc.Start();
+                        proc.WaitForExit();
+                    }
+                    catch
+                    {
+                        // Unable to start the process, return unknown session ID
+                        return -1;
+                    }
 
                     if (proc.ExitCode == 0)
                     {