r0 = syz_open_dev$tty20(0xc, 0x4, 0x0) r1 = syz_open_dev$tty20(0xc, 0x4, 0x0) ioctl$TCSETAF(r1, 0x5408, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x101, 0x0, "fff00500cdb3a84b"}) ioctl$TIOCSTI(r0, 0x5412, &(0x7f0000000680)=0xff)