r0 = syz_open_dev$tty1(0xc, 0x4, 0x1)
ioctl$KDGKBDIACR(0xffffffffffffffff, 0x4b4a, 0x0)
r1 = dup(r0)
ioctl$KDFONTOP_SET_DEF(0xffffffffffffffff, 0x4b72, 0x0)
ioctl$FIONREAD(r1, 0x541b, &(0x7f0000000080))