r0 = syz_open_dev$tty20(0xc, 0x4, 0x0)
readv(r0, &(0x7f0000000300)=[{&(0x7f00000007c0)=""/4096, 0x1000}], 0x1)
ioctl$TIOCSTI(r0, 0x5412, &(0x7f0000000000))