From 30be599db33829ddc62ece238d8e0eda10ad9abb Mon Sep 17 00:00:00 2001
From: Art Yerkes <art.yerkes@gmail.com>
Date: Sun, 21 Nov 2004 03:02:57 +0000
Subject: [PATCH] Add a null check to prevent crashes during the vulnerable
 time when Filter is not set.

svn path=/trunk/; revision=11729
---
 reactos/drivers/net/ndis/ndis/miniport.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/reactos/drivers/net/ndis/ndis/miniport.c b/reactos/drivers/net/ndis/ndis/miniport.c
index a58b9355721..6ce8894bb52 100644
--- a/reactos/drivers/net/ndis/ndis/miniport.c
+++ b/reactos/drivers/net/ndis/ndis/miniport.c
@@ -377,6 +377,9 @@ MiniEthReceiveIndication(
  *     PacketSize          = Total size of received packet
  */
 {
+    /* If there is no filter, then we can't do any more */
+    if( !Filter ) return;
+
     MiniIndicateData((PLOGICAL_ADAPTER)Filter->Miniport,
 		     MacReceiveContext,
 		     HeaderBuffer,