From a824cbda621151c34dd85d00c3ee2779d839c237 Mon Sep 17 00:00:00 2001
From: Jeffrey Altman <jaltman@secure-endpoints.com>
Date: Sun, 26 Oct 2008 21:16:57 +0000
Subject: [PATCH] rx-rdwr-avoid-free-null-packet-20081026

LICENSE MIT

avoid a potential call to rxi_FreePacket with a NULL pointer as input
---
 src/rx/rx_rdwr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/rx/rx_rdwr.c b/src/rx/rx_rdwr.c
index 59828fb..35fcce6 100644
--- a/src/rx/rx_rdwr.c
+++ b/src/rx/rx_rdwr.c
@@ -389,7 +389,7 @@ rx_ReadProc32(struct rx_call *call, afs_int32 * value)
 	call->curpos = tcurpos + sizeof(afs_int32);
 	call->curlen = (u_short)(tcurlen - sizeof(afs_int32));
 	call->nLeft = (u_short)(tnLeft - sizeof(afs_int32));
-        if (!call->nLeft) {
+        if (!call->nLeft && call->currentPacket != NULL) {
             /* out of packet.  Get another one. */
             NETPRI;
             MUTEX_ENTER(&call->lock);
-- 
1.9.4