Account for device removal before initialization

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2019-06-27 11:57:14 +00:00 · 2019-06-27 11:57:14 +00:00 · 1d96af3b98
commit 1d96af3b98
parent 248d4268df
1 changed files with 2 additions and 0 deletions
--- 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)
        {