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@codeweavers.com> Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

dwrite: Fix possible use of uninitialized memory.
07fd82cd · Esme Povirk · Alexandre Julliard · 412b36e4 · 07fd82cd
Commit 07fd82cd authored Dec 11, 2021 by Esme Povirk Committed by Alexandre Julliard Dec 13, 2021
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analyzer.c dlls/dwrite/analyzer.c +1 -1

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--- 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)