From 1d96af3b98501370a5b0efb3e7d57243a8dda8d2 Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Thu, 27 Jun 2019 11:57:14 +0000
Subject: [PATCH] Account for device removal before initialization

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
---
 wintun.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/wintun.c b/wintun.c
index 26d2c1e..8db1924 100644
--- a/wintun.c
+++ b/wintun.c
@@ -1069,6 +1069,8 @@ TunDispatchPnP(DEVICE_OBJECT *DeviceObject, IRP *Irp)
     {
 #pragma warning(suppress : 28175)
         TUN_CTX *ctx = DeviceObject->Reserved;
+        if (!ctx)
+            return NdisDispatchPnP(DeviceObject, Irp);
 
         switch (stack->MinorFunction)
         {