io_setup(0x8, &(0x7f0000000080)=0x0) r1 = syz_open_dev$tty20(0xc, 0x4, 0x0) io_submit(r0, 0x3, &(0x7f00000018c0)=[&(0x7f0000001200)={0x0, 0x0, 0x0, 0x0, 0x0, r1, &(0x7f00000001c0)='m', 0x1}]) ioctl$TIOCSTI(r1, 0x5412, &(0x7f0000000000)=0x4)