reg: Fix a heap corruption when printing specific REG_MULTI_SZ values.

Signed-off-by: Sebastian Lackner <sebastian@fds-team.de> Signed-off-by: Hugh McMaster <hugh.mcmaster@outlook.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

reg: Fix a heap corruption when printing specific REG_MULTI_SZ values.
7c774e98 · Sebastian Lackner · Alexandre Julliard · ef36a25a · 7c774e98
Commit 7c774e98 authored Apr 22, 2016 by Sebastian Lackner Committed by Alexandre Julliard Apr 25, 2016
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reg.c programs/reg/reg.c +1 -1

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--- a/programs/reg/reg.c
+++ b/programs/reg/reg.c
@@ -587,7 +587,7 @@ static WCHAR *reg_data_to_wchar(DWORD type, const BYTE *src, DWORD size_bytes)
            }

            tmp_size = size_bytes - two_wchars; /* exclude both null terminators */
-            buffer = HeapAlloc(GetProcessHeap(), 0, tmp_size * 2);
+            buffer = HeapAlloc(GetProcessHeap(), 0, tmp_size * 2 + sizeof(WCHAR));
            len = tmp_size / sizeof(WCHAR);

            for (i = 0, destindex = 0; i < len; i++, destindex++)