Piotr Caban : comctl32: Don' t use uninitialized LVITEM fields in LISTVIEW_InsertItemT when LVS_EX_CHECKBOXES was specified.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 9c87c7e76dbb860884308c7f609fb3588d3e686d
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=9c87c7e76dbb860884308c7f609fb3588d3e686d

Author: Piotr Caban <piotr at codeweavers.com>
Date:   Wed Oct  7 10:17:14 2015 +0200

comctl32: Don't use uninitialized LVITEM fields in LISTVIEW_InsertItemT when LVS_EX_CHECKBOXES was specified.

Signed-off-by: Piotr Caban <piotr at codeweavers.com>

---

 dlls/comctl32/listview.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/dlls/comctl32/listview.c b/dlls/comctl32/listview.c
index c0956ad..a76935a 100644
--- a/dlls/comctl32/listview.c
+++ b/dlls/comctl32/listview.c
@@ -7851,10 +7851,18 @@ static INT LISTVIEW_InsertItemT(LISTVIEW_INFO *infoPtr, const LVITEMW *lpLVItem,
     item.iItem = nItem;
     if (infoPtr->dwLvExStyle & LVS_EX_CHECKBOXES)
     {
-        item.mask |= LVIF_STATE;
-        item.stateMask |= LVIS_STATEIMAGEMASK;
-        item.state &= ~LVIS_STATEIMAGEMASK;
-        item.state |= INDEXTOSTATEIMAGEMASK(1);
+        if (item.mask & LVIF_STATE)
+        {
+            item.stateMask |= LVIS_STATEIMAGEMASK;
+            item.state &= ~LVIS_STATEIMAGEMASK;
+            item.state |= INDEXTOSTATEIMAGEMASK(1);
+        }
+        else
+        {
+            item.mask |= LVIF_STATE;
+            item.stateMask = LVIS_STATEIMAGEMASK;
+            item.state = INDEXTOSTATEIMAGEMASK(1);
+        }
     }
 
     if (!set_main_item(infoPtr, &item, TRUE, isW, &has_changed)) goto undo;