r0 = syz_open_dev$tty20(0xc, 0x4, 0x0)
ioctl$TCSETSW2(r0, 0x402c542c, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1000ffff, 0x0, "0489fdc1843fc745ea52a5fff7962e807836db"})
ioctl$TIOCSTI(r0, 0x5412, &(0x7f0000000100)=0xff)
ioctl$FIONREAD(r0, 0x541b, &(0x7f0000000080))