r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000400)={0x0, 0x0, &(0x7f00000003c0)={&(0x7f0000000380)={0x14}, 0x14}}, 0x0)