r0 = syz_open_dev$tty20(0xc, 0x4, 0x0)
r1 = openat$vga_arbiter(0xffffffffffffff9c, &(0x7f00000000c0), 0x0, 0x0)
r2 = dup2(r1, r0)
pread64(r2, 0x0, 0x0, 0x0)