Esme Povirk : dwrite: Fix possible use of uninitialized memory.
Alexandre Julliard
julliard at winehq.org
Mon Dec 13 15:59:53 CST 2021
Module: wine
Branch: master
Commit: 07fd82cdbddc03da2095882fa4fdaf7928c90fbc
URL: https://source.winehq.org/git/wine.git/?a=commit;h=07fd82cdbddc03da2095882fa4fdaf7928c90fbc
Author: Esme Povirk <esme at codeweavers.com>
Date: Sat Dec 11 14:04:27 2021 -0600
dwrite: Fix possible use of uninitialized memory.
If the text source returns fewer than length character, part
of the buffer will be uninitialized.
Signed-off-by: Esme Povirk <esme at codeweavers.com>
Signed-off-by: Nikolay Sivov <nsivov at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>
---
dlls/dwrite/analyzer.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/dlls/dwrite/analyzer.c b/dlls/dwrite/analyzer.c
index 8ecfad5f3a5..92a02f8d3aa 100644
--- a/dlls/dwrite/analyzer.c
+++ b/dlls/dwrite/analyzer.c
@@ -865,7 +865,7 @@ static HRESULT get_text_source_ptr(IDWriteTextAnalysisSource *source, UINT32 pos
if (len < length) {
UINT32 read;
- *buff = malloc(length * sizeof(WCHAR));
+ *buff = calloc(length, sizeof(WCHAR));
if (!*buff)
return E_OUTOFMEMORY;
if (*text)
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