socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) ioctl$sock_SIOCETHTOOL(r0, 0x8946, &(0x7f0000000080)={'lo\x00', &(0x7f0000000440)=ANY=[@ANYBLOB="3b00000002000000000000000000e36536ac01f0"]})