r0 = syz_open_dev$tty20(0xc, 0x4, 0x1)
ioctl$TIOCSETD(r0, 0x5423, &(0x7f0000000140)=0x1b)
writev(r0, &(0x7f0000019280)=[{&(0x7f0000000080)="bd", 0x1}], 0x1)