[reactos] 294/360: [WINESYNC] msi: Fix use after free error in TransformView_set_row.

[winesync]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=c6c4bdb242b712cf28020…

commit c6c4bdb242b712cf280201ed167b853673f9b2cc
Author:     winesync <ros-dev(a)reactos.org>
AuthorDate: Sun Mar 13 19:08:44 2022 +0100
Commit:     Mark Jansen <mark.jansen(a)reactos.org>
CommitDate: Sun Mar 20 19:28:32 2022 +0100

    [WINESYNC] msi: Fix use after free error in TransformView_set_row.
    
    Signed-off-by: Piotr Caban <piotr(a)codeweavers.com>
    Signed-off-by: Hans Leidekker <hans(a)codeweavers.com>
    Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>
    
    wine commit id 6a0a0d2a0b15bffa9d4a5b41e75be6765e731d69 by Piotr Caban
<piotr(a)codeweavers.com>
---
 dll/win32/msi/table.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/dll/win32/msi/table.c b/dll/win32/msi/table.c
index d4912ab3ae3..3febcb3aa94 100644
--- a/dll/win32/msi/table.c
+++ b/dll/win32/msi/table.c
@@ -2341,7 +2341,7 @@ static UINT TransformView_set_row( MSIVIEW *view, UINT row,
MSIRECORD *rec, UINT
         L"INSERT INTO `_TransformView` (`Table`, `Column`, `Row`, `Data`, `Current`)
VALUES ('";
 
     MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
-    WCHAR buf[256], *query = buf;
+    WCHAR buf[256], *query;
     MSIRECORD *old_rec;
     MSIQUERY *q;
     WCHAR *key;
@@ -2409,6 +2409,10 @@ static UINT TransformView_set_row( MSIVIEW *view, UINT row,
MSIRECORD *rec, UINT
                 return ERROR_OUTOFMEMORY;
             }
         }
+        else
+        {
+            query = buf;
+        }
 
         memcpy( query, query_pfx, p * sizeof(WCHAR) );
         len = wcslen( tv->name );