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Fixed division by 0 if invalid formats are used.

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This commit is contained in:
Armin Novak 2018-10-17 11:36:32 +02:00
parent 10cc319973
commit a432a297ca
1 changed files with 8 additions and 2 deletions
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6
libfreerdp/gdi/graphics.c
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@ -176,10 +176,16 @@ static BOOL gdi_Bitmap_Decompress(rdpContext* context, rdpBitmap* bitmap,
const UINT32 SrcFormat = gdi_get_pixel_format(bpp);
const size_t sbpp = GetBytesPerPixel(SrcFormat);
const size_t dbpp = GetBytesPerPixel(bitmap->format);
if ((sbpp == 0) || (dbpp == 0))
return FALSE;
else
{
const size_t dstSize = SrcSize * dbpp / sbpp;
if (dstSize < bitmap->length)
return FALSE;
}
if (!freerdp_image_copy(bitmap->data, bitmap->format, 0, 0, 0,
DstWidth, DstHeight, pSrcData, SrcFormat,