Mark Jansen : shell32: Prevent a possible null pointer dereference in SHGetFileInfoW.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 32520439e18e5cfb666dd8d28324a1f16249d3cb
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=32520439e18e5cfb666dd8d283...

Author: Mark Jansen <mark.jansen(a)reactos.org>
Date:   Wed Jul 19 17:23:07 2017 +0200

shell32: Prevent a possible null pointer dereference in SHGetFileInfoW.

Signed-off-by: Mark Jansen <mark.jansen(a)reactos.org>
Signed-off-by: Sebastian Lackner <sebastian(a)fds-team.de>
Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>

---

 dlls/shell32/shell32_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/shell32/shell32_main.c b/dlls/shell32/shell32_main.c
index 34b906c..0ed6790 100644
--- a/dlls/shell32/shell32_main.c
+++ b/dlls/shell32/shell32_main.c
@@ -431,7 +431,7 @@ DWORD_PTR WINAPI SHGetFileInfoW(LPCWSTR path,DWORD dwFileAttributes,
 
     TRACE("%s fattr=0x%x sfi=%p(attr=0x%08x) size=0x%x flags=0x%x\n",
           (flags & SHGFI_PIDL)? "pidl" : debugstr_w(path), dwFileAttributes,
-          psfi, psfi->dwAttributes, sizeofpsfi, flags);
+          psfi, psfi ? psfi->dwAttributes : 0, sizeofpsfi, flags);
 
     if (!path)
         return FALSE;