[PATCH v2] Regedit: Stop a crash when modifying a DWORD value.

[Alistair Leslie-Hughes]

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=19098
Signed-off-by: Alistair Leslie-Hughes 
---
 programs/regedit/edit.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/programs/regedit/edit.c b/programs/regedit/edit.c
index a3cf17b..5f2cc52 100644
--- a/programs/regedit/edit.c
+++ b/programs/regedit/edit.c
@@ -283,7 +283,9 @@ BOOL ModifyValue(HWND hwnd, HKEY hKeyRoot, LPCWSTR keyPath, LPCWSTR valueName)
         }
     } else if ( type == REG_DWORD ) {
         static const WCHAR x[] = {'%','x',0};
-        wsprintfW(stringValueData, x, *((DWORD*)stringValueData));
+        DWORD value = *((DWORD*)stringValueData);
+        stringValueData = heap_xrealloc(stringValueData, 64);
+        wsprintfW(stringValueData, x, value);
    if (DialogBoxW(0, MAKEINTRESOURCEW(IDD_EDIT_DWORD), hwnd, modify_dlgproc) == IDOK) {
        DWORD val;
        CHAR* valueA = GetMultiByteString(stringValueData);