From b489b7ff7d4ba9f000f29c608515eb43059855ab Mon Sep 17 00:00:00 2001
From: Peter Wu <peter@lekensteyn.nl>
Date: Thu, 10 Nov 2016 16:04:25 +0100
Subject: lsd: fix unaligned read

Fixes UBsan complaint:

    epan/dissectors/packet-lsd.c:141:7: runtime error: load of misaligned address 0x61d00017029e for type 'const guint32', which requires 4 byte alignment

Change-Id: I74034f3e0bc198b4b86ca6cd7559d8df7283377f
Reviewed-on: https://code.wireshark.org/review/18733
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
---
 epan/dissectors/packet-lsd.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'epan/dissectors/packet-lsd.c')

diff --git a/epan/dissectors/packet-lsd.c b/epan/dissectors/packet-lsd.c
index fa16c5d301..065d80b404 100644
--- a/epan/dissectors/packet-lsd.c
+++ b/epan/dissectors/packet-lsd.c
@@ -26,6 +26,7 @@
 
 #include <epan/packet.h>
 #include <epan/expert.h>
+#include <wsutil/pint.h>
 #include <wsutil/strtoi.h>
 
 void proto_register_lsd(void);
@@ -138,7 +139,7 @@ dissect_lsd_heur(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data
   if (pinfo->dst.type != AT_IPv4)
       return FALSE;
 
-  if (g_ntohl((*((const guint32 *)pinfo->dst.data))) != LSD_MULTICAST_ADDRESS)
+  if (pntoh32(pinfo->dst.data) != LSD_MULTICAST_ADDRESS)
       return FALSE;
 
   if (pinfo->destport != LSD_PORT)
-- 
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