windowscodecs: Limit number of colors in a palette in BMP decoder.

Signed-off-by: Dmitry Timoshkov <dmitry@baikal.ru> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

windowscodecs: Limit number of colors in a palette in BMP decoder.
5a4f5ce8 · Dmitry Timoshkov · Alexandre Julliard · 0b428f88 · 5a4f5ce8
Commit 5a4f5ce8 authored Nov 30, 2018 by Dmitry Timoshkov Committed by Alexandre Julliard Dec 04, 2018
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bmpdecode.c dlls/windowscodecs/bmpdecode.c +1 -1

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--- a/dlls/windowscodecs/bmpdecode.c
+++ b/dlls/windowscodecs/bmpdecode.c
@@ -271,7 +271,7 @@ static HRESULT WINAPI BmpFrameDecode_CopyPalette(IWICBitmapFrameDecode *iface,
            if (This->bih.bV5ClrUsed == 0)
                count = 1 << This->bih.bV5BitCount;
            else
-                count = This->bih.bV5ClrUsed;
+                count = min(This->bih.bV5ClrUsed, 1 << This->bih.bV5BitCount);

            tablesize = sizeof(WICColor) * count;
            wiccolors = HeapAlloc(GetProcessHeap(), 0, tablesize);