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reg: Prevent buffer over-read when querying REG_NONE values with no data.
Signed-off-by: Hugh McMaster <hugh.mcmaster@outlook.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
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@ -50,7 +50,15 @@ static WCHAR *reg_data_to_wchar(DWORD type, const BYTE *src, DWORD size_bytes)
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WCHAR *ptr;
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WCHAR *ptr;
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buffer = malloc((size_bytes * 2 + 1) * sizeof(WCHAR));
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buffer = malloc((size_bytes * 2 + 1) * sizeof(WCHAR));
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if (!size_bytes)
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{
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*buffer = 0;
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break;
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}
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ptr = buffer;
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ptr = buffer;
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for (i = 0; i < size_bytes; i++)
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for (i = 0; i < size_bytes; i++)
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ptr += swprintf(ptr, 3, L"%02X", src[i]);
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ptr += swprintf(ptr, 3, L"%02X", src[i]);
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break;
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break;
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