We use 4*3 as the stride for GdipCreateBitmapFromScan0 in all test cases in test_CloneBitmapArea, but bmp_3x3_data_24bpp_rgb only has 9 bytes per row. GdipCreateBitmapFromScan0 also expects the stride to be a multiple of 4, so pad bmp_3x3_data_24bpp_rgb to be 12 bytes per row.