r0 = syz_open_dev$tty20(0xc, 0x4, 0x0)
ioctl$KDFONTOP_GET(r0, 0x4b72, 0x0)
ioctl$GIO_UNIMAP(r0, 0x4b66, &(0x7f00000000c0)={0x1, &(0x7f0000000080)=[{}]})