r0 = syz_open_dev$tty20(0xc, 0x4, 0x0)
ioctl$TIOCL_SETVESABLANK(r0, 0x5412, &(0x7f00000000c0))
readv(r0, &(0x7f0000000280)=[{&(0x7f0000000200)=""/70, 0x46}], 0x1)