static bool blit_region_is_unsafe(struct CirrusVGAState *s,
                                  int32_t pitch, int32_t addr)
{
    if (pitch < 0) {
        int64_t min = addr
            + ((int64_t)s->cirrus_blt_height-1) * pitch;
        int32_t max = addr
            + s->cirrus_blt_width;
        if (min < 0 || max >= s->vga.vram_size) {
            return true;
        }
    } else {
        int64_t max = addr
            + ((int64_t)s->cirrus_blt_height-1) * pitch
            + s->cirrus_blt_width;
        if (max >= s->vga.vram_size) {
            return true;
        }
    }
    return false;
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.