From 363fadba81070b56e0e070a76216cb0a7fc95d95 Mon Sep 17 00:00:00 2001
From: Mike Nordell <tamlin@algonet.se>
Date: Thu, 11 Oct 2007 22:20:22 +0000
Subject: [PATCH] Prevent SEGV

svn path=/trunk/; revision=29522
---
 reactos/dll/win32/user32/misc/exticon.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/reactos/dll/win32/user32/misc/exticon.c b/reactos/dll/win32/user32/misc/exticon.c
index 95b83645f4d..660a69f61a0 100644
--- a/reactos/dll/win32/user32/misc/exticon.c
+++ b/reactos/dll/win32/user32/misc/exticon.c
@@ -533,7 +533,19 @@ static UINT ICO_ExtractIconExW(
 	  {
 	    const IMAGE_RESOURCE_DIRECTORY *xresdir;
 	    xresdir = find_entry_by_id(iconresdir, LOWORD(pIconId[i]), rootresdir);
+	    if (!xresdir)
+	    {
+	      WARN("find_entry_by_id failed\n");
+	      ret = 0xFFFFFFFF;
+	      goto end;
+	    }
 	    xresdir = find_entry_default(xresdir, rootresdir);
+	    if (!xresdir)
+	    {
+	      WARN("find_entry_default failed\n");
+	      ret = 0xFFFFFFFF;
+	      goto end;
+	    }
 	    idataent = (PIMAGE_RESOURCE_DATA_ENTRY)xresdir;
 	    idata = NULL;