From 3fd571cb1014f61101e0b82fc9944f9d5285cea1 Mon Sep 17 00:00:00 2001
From: Jeffrey Altman <jaltman@mit.edu>
Date: Mon, 9 Aug 2004 21:51:56 +0000
Subject: [PATCH] null-pointer-20040809

protect against a null pointer reference in smb_ReceiveV3Trans
when its the first packet and the totalData and totalParms are 0
---
 src/WINNT/afsd/smb3.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/WINNT/afsd/smb3.c b/src/WINNT/afsd/smb3.c
index e9468b097d..2f8b3241de 100644
--- a/src/WINNT/afsd/smb3.c
+++ b/src/WINNT/afsd/smb3.c
@@ -1305,7 +1305,9 @@ long smb_ReceiveV3Trans(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *outp)
     asp->curParms += parmCount;
 
     /* finally, if we're done, remove the packet from the queue and dispatch it */
-    if (asp->totalData <= asp->curData && asp->totalParms <= asp->curParms) {
+    if (asp->curData > 0 && asp->curParms > 0 && 
+        asp->totalData <= asp->curData && 
+        asp->totalParms <= asp->curParms) {
 		/* we've received it all */
         lock_ObtainWrite(&smb_globalLock);
 		osi_QRemove((osi_queue_t **) &smb_tran2AssemblyQueuep, &asp->q);