r0 = syz_open_dev$tty20(0xc, 0x4, 0x0) ioctl$TCSETSF2(r0, 0x402c542d, &(0x7f0000000000)={0x0, 0x0, 0x0, 0x0, 0x0, "5eff720600"}) r1 = syz_open_dev$tty20(0xc, 0x4, 0x0) ioctl$TCXONC(r1, 0x540a, 0x3)