11 files changed, 527 insertions, 51 deletions

diff --git a/cli/args/flags.rs b/cli/args/flags.rs
index 513307e92..46fa8c552 100644
--- a/cli/args/flags.rs
+++ b/cli/args/flags.rs
@@ -291,6 +291,7 @@ pub struct Flags {
   pub allow_ffi: Option<Vec<PathBuf>>,
   pub allow_read: Option<Vec<PathBuf>>,
   pub allow_run: Option<Vec<String>>,
+  pub allow_sys: Option<Vec<String>>,
   pub allow_write: Option<Vec<PathBuf>>,
   pub ca_stores: Option<Vec<String>>,
   pub ca_file: Option<String>,
@@ -413,6 +414,17 @@ impl Flags {
       _ => {}
     }
 
+    match &self.allow_sys {
+      Some(sys_allowlist) if sys_allowlist.is_empty() => {
+        args.push("--allow-sys".to_string());
+      }
+      Some(sys_allowlist) => {
+        let s = format!("--allow-sys={}", sys_allowlist.join(","));
+        args.push(s)
+      }
+      _ => {}
+    }
+
     match &self.allow_ffi {
       Some(ffi_allowlist) if ffi_allowlist.is_empty() => {
         args.push("--allow-ffi".to_string());
@@ -470,6 +482,7 @@ impl Flags {
       allow_ffi: self.allow_ffi.clone(),
       allow_read: self.allow_read.clone(),
       allow_run: self.allow_run.clone(),
+      allow_sys: self.allow_sys.clone(),
       allow_write: self.allow_write.clone(),
       prompt: !self.no_prompt,
     }
@@ -590,6 +603,7 @@ fn handle_repl_flags(flags: &mut Flags, repl_flags: ReplFlags) {
   flags.allow_env = Some(vec![]);
   flags.allow_run = Some(vec![]);
   flags.allow_read = Some(vec![]);
+  flags.allow_sys = Some(vec![]);
   flags.allow_write = Some(vec![]);
   flags.allow_ffi = Some(vec![]);
   flags.allow_hrtime = true;
@@ -1811,6 +1825,27 @@ fn permission_args(app: Command) -> Command {
         }),
     )
     .arg(
+      Arg::new("allow-sys")
+        .long("allow-sys")
+        .min_values(0)
+        .takes_value(true)
+        .use_value_delimiter(true)
+        .require_equals(true)
+        .help("Allow access to system info")
+        .validator(|keys| {
+          for key in keys.split(',') {
+            match key {
+              "hostname" | "osRelease" | "loadavg" | "networkInterfaces"
+              | "systemMemoryInfo" | "getUid" | "getGid" => {}
+              _ => {
+                return Err(format!("unknown system info kind \"{}\"", key));
+              }
+            }
+          }
+          Ok(())
+        }),
+    )
+    .arg(
       Arg::new("allow-run")
         .long("allow-run")
         .min_values(0)
@@ -2367,6 +2402,7 @@ fn eval_parse(flags: &mut Flags, matches: &clap::ArgMatches) {
   flags.allow_env = Some(vec![]);
   flags.allow_run = Some(vec![]);
   flags.allow_read = Some(vec![]);
+  flags.allow_sys = Some(vec![]);
   flags.allow_write = Some(vec![]);
   flags.allow_ffi = Some(vec![]);
   flags.allow_hrtime = true;
@@ -2870,6 +2906,12 @@ fn permission_args_parse(flags: &mut Flags, matches: &clap::ArgMatches) {
     debug!("run allowlist: {:#?}", &flags.allow_run);
   }
 
+  if let Some(sys_wl) = matches.values_of("allow-sys") {
+    let sys_allowlist: Vec<String> = sys_wl.map(ToString::to_string).collect();
+    flags.allow_sys = Some(sys_allowlist);
+    debug!("sys info allowlist: {:#?}", &flags.allow_sys);
+  }
+
   if let Some(ffi_wl) = matches.values_of("allow-ffi") {
     let ffi_allowlist: Vec<PathBuf> = ffi_wl.map(PathBuf::from).collect();
     flags.allow_ffi = Some(ffi_allowlist);
@@ -2886,6 +2928,7 @@ fn permission_args_parse(flags: &mut Flags, matches: &clap::ArgMatches) {
     flags.allow_net = Some(vec![]);
     flags.allow_run = Some(vec![]);
     flags.allow_write = Some(vec![]);
+    flags.allow_sys = Some(vec![]);
     flags.allow_ffi = Some(vec![]);
     flags.allow_hrtime = true;
   }
@@ -3351,6 +3394,7 @@ mod tests {
         allow_env: Some(vec![]),
         allow_run: Some(vec![]),
         allow_read: Some(vec![]),
+        allow_sys: Some(vec![]),
         allow_write: Some(vec![]),
         allow_ffi: Some(vec![]),
         allow_hrtime: true,
@@ -3978,6 +4022,7 @@ mod tests {
         allow_env: Some(vec![]),
         allow_run: Some(vec![]),
         allow_read: Some(vec![]),
+        allow_sys: Some(vec![]),
         allow_write: Some(vec![]),
         allow_ffi: Some(vec![]),
         allow_hrtime: true,
@@ -4001,6 +4046,7 @@ mod tests {
         allow_env: Some(vec![]),
         allow_run: Some(vec![]),
         allow_read: Some(vec![]),
+        allow_sys: Some(vec![]),
         allow_write: Some(vec![]),
         allow_ffi: Some(vec![]),
         allow_hrtime: true,
@@ -4025,6 +4071,7 @@ mod tests {
         allow_env: Some(vec![]),
         allow_run: Some(vec![]),
         allow_read: Some(vec![]),
+        allow_sys: Some(vec![]),
         allow_write: Some(vec![]),
         allow_ffi: Some(vec![]),
         allow_hrtime: true,
@@ -4062,6 +4109,7 @@ mod tests {
         allow_env: Some(vec![]),
         allow_run: Some(vec![]),
         allow_read: Some(vec![]),
+        allow_sys: Some(vec![]),
         allow_write: Some(vec![]),
         allow_ffi: Some(vec![]),
         allow_hrtime: true,
@@ -4092,6 +4140,7 @@ mod tests {
         allow_env: Some(vec![]),
         allow_run: Some(vec![]),
         allow_read: Some(vec![]),
+        allow_sys: Some(vec![]),
         allow_write: Some(vec![]),
         allow_ffi: Some(vec![]),
         allow_hrtime: true,
@@ -4115,6 +4164,7 @@ mod tests {
         allow_env: Some(vec![]),
         allow_run: Some(vec![]),
         allow_read: Some(vec![]),
+        allow_sys: Some(vec![]),
         allow_write: Some(vec![]),
         allow_ffi: Some(vec![]),
         allow_hrtime: true,
@@ -4151,6 +4201,7 @@ mod tests {
         allow_env: Some(vec![]),
         allow_run: Some(vec![]),
         allow_read: Some(vec![]),
+        allow_sys: Some(vec![]),
         allow_write: Some(vec![]),
         allow_ffi: Some(vec![]),
         allow_hrtime: true,
@@ -4175,6 +4226,7 @@ mod tests {
         allow_env: Some(vec![]),
         allow_run: Some(vec![]),
         allow_read: Some(vec![]),
+        allow_sys: Some(vec![]),
         allow_write: Some(vec![]),
         allow_ffi: Some(vec![]),
         allow_hrtime: true,
@@ -4203,6 +4255,7 @@ mod tests {
         allow_env: Some(vec![]),
         allow_run: Some(vec![]),
         allow_read: Some(vec![]),
+        allow_sys: Some(vec![]),
         allow_write: Some(vec![]),
         allow_ffi: Some(vec![]),
         allow_hrtime: true,
@@ -4330,6 +4383,81 @@ mod tests {
   }
 
   #[test]
+  fn allow_sys() {
+    let r = flags_from_vec(svec!["deno", "run", "--allow-sys", "script.ts"]);
+    assert_eq!(
+      r.unwrap(),
+      Flags {
+        subcommand: DenoSubcommand::Run(RunFlags {
+          script: "script.ts".to_string(),
+        }),
+        allow_sys: Some(vec![]),
+        ..Flags::default()
+      }
+    );
+  }
+
+  #[test]
+  fn allow_sys_allowlist() {
+    let r =
+      flags_from_vec(svec!["deno", "run", "--allow-sys=hostname", "script.ts"]);
+    assert_eq!(
+      r.unwrap(),
+      Flags {
+        subcommand: DenoSubcommand::Run(RunFlags {
+          script: "script.ts".to_string(),
+        }),
+        allow_sys: Some(svec!["hostname"]),
+        ..Flags::default()
+      }
+    );
+  }
+
+  #[test]
+  fn allow_sys_allowlist_multiple() {
+    let r = flags_from_vec(svec![
+      "deno",
+      "run",
+      "--allow-sys=hostname,osRelease",
+      "script.ts"
+    ]);
+    assert_eq!(
+      r.unwrap(),
+      Flags {
+        subcommand: DenoSubcommand::Run(RunFlags {
+          script: "script.ts".to_string(),
+        }),
+        allow_sys: Some(svec!["hostname", "osRelease"]),
+        ..Flags::default()
+      }
+    );
+  }
+
+  #[test]
+  fn allow_sys_allowlist_validator() {
+    let r =
+      flags_from_vec(svec!["deno", "run", "--allow-sys=hostname", "script.ts"]);
+    assert!(r.is_ok());
+    let r = flags_from_vec(svec![
+      "deno",
+      "run",
+      "--allow-sys=hostname,osRelease",
+      "script.ts"
+    ]);
+    assert!(r.is_ok());
+    let r =
+      flags_from_vec(svec!["deno", "run", "--allow-sys=foo", "script.ts"]);
+    assert!(r.is_err());
+    let r = flags_from_vec(svec![
+      "deno",
+      "run",
+      "--allow-sys=hostname,foo",
+      "script.ts"
+    ]);
+    assert!(r.is_err());
+  }
+
+  #[test]
   fn reload_validator() {
     let r = flags_from_vec(svec![
       "deno",
@@ -4931,6 +5059,7 @@ mod tests {
         allow_env: Some(vec![]),
         allow_run: Some(vec![]),
         allow_read: Some(vec![]),
+        allow_sys: Some(vec![]),
         allow_write: Some(vec![]),
         allow_ffi: Some(vec![]),
         allow_hrtime: true,
@@ -5012,6 +5141,7 @@ mod tests {
         allow_env: Some(vec![]),
         allow_run: Some(vec![]),
         allow_read: Some(vec![]),
+        allow_sys: Some(vec![]),
         allow_write: Some(vec![]),
         allow_ffi: Some(vec![]),
         allow_hrtime: true,
diff --git a/cli/dts/lib.deno.ns.d.ts b/cli/dts/lib.deno.ns.d.ts
index 97d3fed04..095ae139a 100644
--- a/cli/dts/lib.deno.ns.d.ts
+++ b/cli/dts/lib.deno.ns.d.ts
@@ -183,6 +183,15 @@ declare namespace Deno {
      */
     env?: "inherit" | boolean | string[];
 
+    /** Specifies if the `sys` permission should be requested or revoked.
+     * If set to `"inherit"`, the current `sys` permission will be inherited.
+     * If set to `true`, the global `sys` permission will be requested.
+     * If set to `false`, the global `sys` permission will be revoked.
+     *
+     * Defaults to `false`.
+     */
+    sys?: "inherit" | boolean | string[];
+
     /** Specifies if the `hrtime` permission should be requested or revoked.
      * If set to `"inherit"`, the current `hrtime` permission will be inherited.
      * If set to `true`, the global `hrtime` permission will be requested.
@@ -2913,6 +2922,7 @@ declare namespace Deno {
     | "write"
     | "net"
     | "env"
+    | "sys"
     | "ffi"
     | "hrtime";
 
@@ -2958,6 +2968,19 @@ declare namespace Deno {
   }
 
   /** @category Permissions */
+  export interface SysPermissionDescriptor {
+    name: "sys";
+    kind?:
+      | "loadavg"
+      | "hostname"
+      | "systemMemoryInfo"
+      | "networkInterfaces"
+      | "osRelease"
+      | "getUid"
+      | "getGid";
+  }
+
+  /** @category Permissions */
   export interface FfiPermissionDescriptor {
     name: "ffi";
     path?: string | URL;
@@ -2979,6 +3002,7 @@ declare namespace Deno {
     | WritePermissionDescriptor
     | NetPermissionDescriptor
     | EnvPermissionDescriptor
+    | SysPermissionDescriptor
     | FfiPermissionDescriptor
     | HrtimePermissionDescriptor;
 
diff --git a/cli/dts/lib.deno.unstable.d.ts b/cli/dts/lib.deno.unstable.d.ts
index ec87fa9ca..6cb062396 100644
--- a/cli/dts/lib.deno.unstable.d.ts
+++ b/cli/dts/lib.deno.unstable.d.ts
@@ -255,11 +255,11 @@ declare namespace Deno {
    * console.log(Deno.loadavg());  // e.g. [ 0.71, 0.44, 0.44 ]
    * ```
    *
-   * Requires `allow-env` permission.
+   * Requires `allow-sys` permission.
    * There are questions around which permission this needs. And maybe should be
    * renamed (loadAverage?).
    *
-   * @tags allow-env
+   * @tags allow-sys
    * @category Observability
    */
   export function loadavg(): number[];
@@ -272,11 +272,11 @@ declare namespace Deno {
    * console.log(Deno.osRelease());
    * ```
    *
-   * Requires `allow-env` permission.
+   * Requires `allow-sys` permission.
    * Under consideration to possibly move to Deno.build or Deno.versions and if
    * it should depend sys-info, which may not be desirable.
    *
-   * @tags allow-env
+   * @tags allow-sys
    * @category Runtime Environment
    */
   export function osRelease(): string;
@@ -292,9 +292,9 @@ declare namespace Deno {
    * console.log(Deno.systemMemoryInfo());
    * ```
    *
-   * Requires `allow-env` permission.
+   * Requires `allow-sys` permission.
    *
-   * @tags allow-env
+   * @tags allow-sys
    * @category Runtime Environment
    */
   export function systemMemoryInfo(): SystemMemoryInfo;
@@ -355,9 +355,9 @@ declare namespace Deno {
    * console.log(Deno.networkInterfaces());
    * ```
    *
-   * Requires `allow-env` permission.
+   * Requires `allow-sys` permission.
    *
-   * @tags allow-env
+   * @tags allow-sys
    * @category Network
    */
   export function networkInterfaces(): NetworkInterfaceInfo[];
@@ -370,9 +370,9 @@ declare namespace Deno {
    * console.log(Deno.getUid());
    * ```
    *
-   * Requires `allow-env` permission.
+   * Requires `allow-sys` permission.
    *
-   * @tags allow-env
+   * @tags allow-sys
    * @category Runtime Environment
    */
   export function getUid(): number | null;
@@ -385,9 +385,9 @@ declare namespace Deno {
    * console.log(Deno.getGid());
    * ```
    *
-   * Requires `allow-env` permission.
+   * Requires `allow-sys` permission.
    *
-   * @tags allow-env
+   * @tags allow-sys
    * @category Runtime Environment
    */
   export function getGid(): number | null;
@@ -980,11 +980,11 @@ declare namespace Deno {
    * console.log(Deno.hostname());
    * ```
    *
-   * Requires `allow-env` permission.
+   * Requires `allow-sys` permission.
    * Additional consideration is still necessary around the permissions
    * required.
    *
-   * @tags allow-env
+   * @tags allow-sys
    * @category Runtime Environment
    */
   export function hostname(): string;
diff --git a/cli/tests/unit/network_interfaces_test.ts b/cli/tests/unit/network_interfaces_test.ts
index 120f58763..a0e6e691a 100644
--- a/cli/tests/unit/network_interfaces_test.ts
+++ b/cli/tests/unit/network_interfaces_test.ts
@@ -1,7 +1,10 @@
 import { assert } from "./test_util.ts";
 
 Deno.test(
-  { name: "Deno.networkInterfaces", permissions: { env: true } },
+  {
+    name: "Deno.networkInterfaces",
+    permissions: { sys: ["networkInterfaces"] },
+  },
   () => {
     const networkInterfaces = Deno.networkInterfaces();
     assert(Array.isArray(networkInterfaces));
diff --git a/cli/tests/unit/os_test.ts b/cli/tests/unit/os_test.ts
index bdbf7f0ca..d620ae4e3 100644
--- a/cli/tests/unit/os_test.ts
+++ b/cli/tests/unit/os_test.ts
@@ -187,49 +187,61 @@ Deno.test({ permissions: { read: false } }, function execPathPerm() {
   );
 });
 
-Deno.test({ permissions: { env: true } }, function loadavgSuccess() {
-  const load = Deno.loadavg();
-  assertEquals(load.length, 3);
-});
+Deno.test(
+  { permissions: { sys: ["loadavg"] } },
+  function loadavgSuccess() {
+    const load = Deno.loadavg();
+    assertEquals(load.length, 3);
+  },
+);
 
-Deno.test({ permissions: { env: false } }, function loadavgPerm() {
+Deno.test({ permissions: { sys: false } }, function loadavgPerm() {
   assertThrows(() => {
     Deno.loadavg();
   }, Deno.errors.PermissionDenied);
 });
 
-Deno.test({ permissions: { env: true } }, function hostnameDir() {
-  assertNotEquals(Deno.hostname(), "");
-});
+Deno.test(
+  { permissions: { sys: ["hostname"] } },
+  function hostnameDir() {
+    assertNotEquals(Deno.hostname(), "");
+  },
+);
 
-Deno.test({ permissions: { env: false } }, function hostnamePerm() {
+Deno.test({ permissions: { sys: false } }, function hostnamePerm() {
   assertThrows(() => {
     Deno.hostname();
   }, Deno.errors.PermissionDenied);
 });
 
-Deno.test({ permissions: { env: true } }, function releaseDir() {
-  assertNotEquals(Deno.osRelease(), "");
-});
+Deno.test(
+  { permissions: { sys: ["osRelease"] } },
+  function releaseDir() {
+    assertNotEquals(Deno.osRelease(), "");
+  },
+);
 
-Deno.test({ permissions: { env: false } }, function releasePerm() {
+Deno.test({ permissions: { sys: false } }, function releasePerm() {
   assertThrows(() => {
     Deno.osRelease();
   }, Deno.errors.PermissionDenied);
 });
 
-Deno.test({ permissions: { env: true } }, function systemMemoryInfo() {
-  const info = Deno.systemMemoryInfo();
-  assert(info.total >= 0);
-  assert(info.free >= 0);
-  assert(info.available >= 0);
-  assert(info.buffers >= 0);
-  assert(info.cached >= 0);
-  assert(info.swapTotal >= 0);
-  assert(info.swapFree >= 0);
-});
+Deno.test(
+  { permissions: { sys: ["systemMemoryInfo"] } },
+  function systemMemoryInfo() {
+    const info = Deno.systemMemoryInfo();
+    assert(info.total >= 0);
+    assert(info.free >= 0);
+    assert(info.available >= 0);
+    assert(info.buffers >= 0);
+    assert(info.cached >= 0);
+    assert(info.swapTotal >= 0);
+    assert(info.swapFree >= 0);
+  },
+);
 
-Deno.test({ permissions: { env: true } }, function getUid() {
+Deno.test({ permissions: { sys: ["getUid"] } }, function getUid() {
   if (Deno.build.os === "windows") {
     assertEquals(Deno.getUid(), null);
   } else {
@@ -239,7 +251,7 @@ Deno.test({ permissions: { env: true } }, function getUid() {
   }
 });
 
-Deno.test({ permissions: { env: true } }, function getGid() {
+Deno.test({ permissions: { sys: ["getGid"] } }, function getGid() {
   if (Deno.build.os === "windows") {
     assertEquals(Deno.getGid(), null);
   } else {
diff --git a/cli/tests/unit/permissions_test.ts b/cli/tests/unit/permissions_test.ts
index 551e9bdcd..c0945bb59 100644
--- a/cli/tests/unit/permissions_test.ts
+++ b/cli/tests/unit/permissions_test.ts
@@ -19,6 +19,23 @@ Deno.test(async function permissionNetInvalidHost() {
   }, URIError);
 });
 
+Deno.test(async function permissionSysValidKind() {
+  await Deno.permissions.query({ name: "sys", kind: "loadavg" });
+  await Deno.permissions.query({ name: "sys", kind: "osRelease" });
+  await Deno.permissions.query({ name: "sys", kind: "networkInterfaces" });
+  await Deno.permissions.query({ name: "sys", kind: "systemMemoryInfo" });
+  await Deno.permissions.query({ name: "sys", kind: "hostname" });
+  await Deno.permissions.query({ name: "sys", kind: "getUid" });
+  await Deno.permissions.query({ name: "sys", kind: "getGid" });
+});
+
+Deno.test(async function permissionSysInvalidKind() {
+  await assertRejects(async () => {
+    // deno-lint-ignore no-explicit-any
+    await Deno.permissions.query({ name: "sys", kind: "abc" as any });
+  }, TypeError);
+});
+
 Deno.test(async function permissionQueryReturnsEventTarget() {
   const status = await Deno.permissions.query({ name: "hrtime" });
   assert(["granted", "denied", "prompt"].includes(status.state));
diff --git a/cli/tools/standalone.rs b/cli/tools/standalone.rs
index 03118f4b6..eeedf8bd5 100644
--- a/cli/tools/standalone.rs
+++ b/cli/tools/standalone.rs
@@ -257,6 +257,7 @@ pub fn compile_to_runtime_flags(
     allow_ffi: flags.allow_ffi.clone(),
     allow_read: flags.allow_read.clone(),
     allow_run: flags.allow_run.clone(),
+    allow_sys: flags.allow_sys.clone(),
     allow_write: flags.allow_write.clone(),
     ca_stores: flags.ca_stores.clone(),
     ca_file: flags.ca_file.clone(),
diff --git a/runtime/js/10_permissions.js b/runtime/js/10_permissions.js
index 2573816df..6aad0677d 100644
--- a/runtime/js/10_permissions.js
+++ b/runtime/js/10_permissions.js
@@ -32,12 +32,13 @@
    * @property {PermissionStatus} status
    */
 
-  /** @type {ReadonlyArray<"read" | "write" | "net" | "env" | "run" | "ffi" | "hrtime">} */
+  /** @type {ReadonlyArray<"read" | "write" | "net" | "env" | "sys" | "run" | "ffi" | "hrtime">} */
   const permissionNames = [
     "read",
     "write",
     "net",
     "env",
+    "sys",
     "run",
     "ffi",
     "hrtime",
@@ -132,6 +133,8 @@
       key += `-${desc.command}&`;
     } else if (desc.name === "env" && desc.variable) {
       key += `-${desc.variable}&`;
+    } else if (desc.name === "sys" && desc.kind) {
+      key += `-${desc.kind}&`;
     } else {
       key += "$";
     }
@@ -242,7 +245,7 @@
           serializedPermissions[key] = permissions[key];
         }
       }
-      for (const key of ["env", "hrtime", "net"]) {
+      for (const key of ["env", "hrtime", "net", "sys"]) {
         if (ArrayIsArray(permissions[key])) {
           serializedPermissions[key] = ArrayPrototypeSlice(permissions[key]);
         } else {
diff --git a/runtime/ops/os.rs b/runtime/ops/os.rs
index 14c4229a1..0e51e3120 100644
--- a/runtime/ops/os.rs
+++ b/runtime/ops/os.rs
@@ -161,7 +161,10 @@ fn op_exit(state: &mut OpState) {
 #[op]
 fn op_loadavg(state: &mut OpState) -> Result<(f64, f64, f64), AnyError> {
   super::check_unstable(state, "Deno.loadavg");
-  state.borrow_mut::<Permissions>().env.check_all()?;
+  state
+    .borrow_mut::<Permissions>()
+    .sys
+    .check("loadavg", Some("Deno.loadavg()"))?;
   match sys_info::loadavg() {
     Ok(loadavg) => Ok((loadavg.one, loadavg.five, loadavg.fifteen)),
     Err(_) => Ok((0.0, 0.0, 0.0)),
@@ -171,7 +174,10 @@ fn op_loadavg(state: &mut OpState) -> Result<(f64, f64, f64), AnyError> {
 #[op]
 fn op_hostname(state: &mut OpState) -> Result<String, AnyError> {
   super::check_unstable(state, "Deno.hostname");
-  state.borrow_mut::<Permissions>().env.check_all()?;
+  state
+    .borrow_mut::<Permissions>()
+    .sys
+    .check("hostname", Some("Deno.hostname()"))?;
   let hostname = sys_info::hostname().unwrap_or_else(|_| "".to_string());
   Ok(hostname)
 }
@@ -179,7 +185,10 @@ fn op_hostname(state: &mut OpState) -> Result<String, AnyError> {
 #[op]
 fn op_os_release(state: &mut OpState) -> Result<String, AnyError> {
   super::check_unstable(state, "Deno.osRelease");
-  state.borrow_mut::<Permissions>().env.check_all()?;
+  state
+    .borrow_mut::<Permissions>()
+    .sys
+    .check("osRelease", Some("Deno.osRelease()"))?;
   let release = sys_info::os_release().unwrap_or_else(|_| "".to_string());
   Ok(release)
 }
@@ -189,7 +198,10 @@ fn op_network_interfaces(
   state: &mut OpState,
 ) -> Result<Vec<NetworkInterface>, AnyError> {
   super::check_unstable(state, "Deno.networkInterfaces");
-  state.borrow_mut::<Permissions>().env.check_all()?;
+  state
+    .borrow_mut::<Permissions>()
+    .sys
+    .check("networkInterfaces", Some("Deno.networkInterfaces()"))?;
   Ok(netif::up()?.map(NetworkInterface::from).collect())
 }
 
@@ -255,7 +267,10 @@ fn op_system_memory_info(
   state: &mut OpState,
 ) -> Result<Option<MemInfo>, AnyError> {
   super::check_unstable(state, "Deno.systemMemoryInfo");
-  state.borrow_mut::<Permissions>().env.check_all()?;
+  state
+    .borrow_mut::<Permissions>()
+    .sys
+    .check("systemMemoryInfo", Some("Deno.systemMemoryInfo()"))?;
   match sys_info::mem_info() {
     Ok(info) => Ok(Some(MemInfo {
       total: info.total,
@@ -274,7 +289,10 @@ fn op_system_memory_info(
 #[op]
 fn op_getgid(state: &mut OpState) -> Result<Option<u32>, AnyError> {
   super::check_unstable(state, "Deno.getGid");
-  state.borrow_mut::<Permissions>().env.check_all()?;
+  state
+    .borrow_mut::<Permissions>()
+    .sys
+    .check("getGid", Some("Deno.getGid()"))?;
   // TODO(bartlomieju):
   #[allow(clippy::undocumented_unsafe_blocks)]
   unsafe {
@@ -286,7 +304,10 @@ fn op_getgid(state: &mut OpState) -> Result<Option<u32>, AnyError> {
 #[op]
 fn op_getgid(state: &mut OpState) -> Result<Option<u32>, AnyError> {
   super::check_unstable(state, "Deno.getGid");
-  state.borrow_mut::<Permissions>().env.check_all()?;
+  state
+    .borrow_mut::<Permissions>()
+    .sys
+    .check("getGid", Some("Deno.getGid()"))?;
   Ok(None)
 }
 
@@ -294,7 +315,10 @@ fn op_getgid(state: &mut OpState) -> Result<Option<u32>, AnyError> {
 #[op]
 fn op_getuid(state: &mut OpState) -> Result<Option<u32>, AnyError> {
   super::check_unstable(state, "Deno.getUid");
-  state.borrow_mut::<Permissions>().env.check_all()?;
+  state
+    .borrow_mut::<Permissions>()
+    .sys
+    .check("getUid", Some("Deno.getUid()"))?;
   // TODO(bartlomieju):
   #[allow(clippy::undocumented_unsafe_blocks)]
   unsafe {
@@ -306,6 +330,9 @@ fn op_getuid(state: &mut OpState) -> Result<Option<u32>, AnyError> {
 #[op]
 fn op_getuid(state: &mut OpState) -> Result<Option<u32>, AnyError> {
   super::check_unstable(state, "Deno.getUid");
-  state.borrow_mut::<Permissions>().env.check_all()?;
+  state
+    .borrow_mut::<Permissions>()
+    .sys
+    .check("getUid", Some("Deno.getUid()"))?;
   Ok(None)
 }
diff --git a/runtime/ops/permissions.rs b/runtime/ops/permissions.rs
index ed1797701..b79330f7f 100644
--- a/runtime/ops/permissions.rs
+++ b/runtime/ops/permissions.rs
@@ -2,6 +2,7 @@
 
 use crate::permissions::Permissions;
 use deno_core::error::custom_error;
+use deno_core::error::type_error;
 use deno_core::error::uri_error;
 use deno_core::error::AnyError;
 use deno_core::op;
@@ -27,6 +28,7 @@ pub struct PermissionArgs {
   path: Option<String>,
   host: Option<String>,
   variable: Option<String>,
+  kind: Option<String>,
   command: Option<String>,
 }
 
@@ -48,6 +50,7 @@ pub fn op_query_permission(
       .as_ref(),
     ),
     "env" => permissions.env.query(args.variable.as_deref()),
+    "sys" => permissions.sys.query(parse_sys_kind(args.kind.as_deref())?),
     "run" => permissions.run.query(args.command.as_deref()),
     "ffi" => permissions.ffi.query(args.path.as_deref().map(Path::new)),
     "hrtime" => permissions.hrtime.query(),
@@ -79,6 +82,9 @@ pub fn op_revoke_permission(
       .as_ref(),
     ),
     "env" => permissions.env.revoke(args.variable.as_deref()),
+    "sys" => permissions
+      .sys
+      .revoke(parse_sys_kind(args.kind.as_deref())?),
     "run" => permissions.run.revoke(args.command.as_deref()),
     "ffi" => permissions.ffi.revoke(args.path.as_deref().map(Path::new)),
     "hrtime" => permissions.hrtime.revoke(),
@@ -110,6 +116,9 @@ pub fn op_request_permission(
       .as_ref(),
     ),
     "env" => permissions.env.request(args.variable.as_deref()),
+    "sys" => permissions
+      .sys
+      .request(parse_sys_kind(args.kind.as_deref())?),
     "run" => permissions.run.request(args.command.as_deref()),
     "ffi" => permissions.ffi.request(args.path.as_deref().map(Path::new)),
     "hrtime" => permissions.hrtime.request(),
@@ -132,3 +141,15 @@ fn parse_host(host_str: &str) -> Result<(String, Option<u16>), AnyError> {
   let hostname = url.host_str().unwrap();
   Ok((hostname.to_string(), url.port()))
 }
+
+fn parse_sys_kind(kind: Option<&str>) -> Result<Option<&str>, AnyError> {
+  if let Some(kind) = kind {
+    match kind {
+      "hostname" | "osRelease" | "loadavg" | "networkInterfaces"
+      | "systemMemoryInfo" | "getUid" | "getGid" => Ok(Some(kind)),
+      _ => Err(type_error(format!("unknown system info kind \"{}\"", kind))),
+    }
+  } else {
+    Ok(kind)
+  }
+}
diff --git a/runtime/permissions.rs b/runtime/permissions.rs
index a50295910..84ff286b4 100644
--- a/runtime/permissions.rs
+++ b/runtime/permissions.rs
@@ -302,6 +302,9 @@ impl ToString for RunDescriptor {
 }
 
 #[derive(Clone, Eq, PartialEq, Hash, Debug)]
+pub struct SysDescriptor(pub String);
+
+#[derive(Clone, Eq, PartialEq, Hash, Debug)]
 pub struct FfiDescriptor(pub PathBuf);
 
 impl UnaryPermission<ReadDescriptor> {
@@ -928,6 +931,128 @@ impl Default for UnaryPermission<EnvDescriptor> {
   }
 }
 
+impl UnaryPermission<SysDescriptor> {
+  pub fn query(&self, kind: Option<&str>) -> PermissionState {
+    if self.global_state == PermissionState::Denied
+      && match kind {
+        None => true,
+        Some(kind) => {
+          self.denied_list.contains(&SysDescriptor(kind.to_string()))
+        }
+      }
+    {
+      PermissionState::Denied
+    } else if self.global_state == PermissionState::Granted
+      || match kind {
+        None => false,
+        Some(kind) => {
+          self.granted_list.contains(&SysDescriptor(kind.to_string()))
+        }
+      }
+    {
+      PermissionState::Granted
+    } else {
+      PermissionState::Prompt
+    }
+  }
+
+  pub fn request(&mut self, kind: Option<&str>) -> PermissionState {
+    let state = self.query(kind);
+    if state != PermissionState::Prompt {
+      return state;
+    }
+    if let Some(kind) = kind {
+      let desc = SysDescriptor(kind.to_string());
+      if permission_prompt(
+        &format!("sys access to \"{}\"", kind),
+        self.name,
+        Some("Deno.permissions.query()"),
+      ) {
+        self.granted_list.insert(desc);
+        PermissionState::Granted
+      } else {
+        self.denied_list.insert(desc);
+        self.global_state = PermissionState::Denied;
+        PermissionState::Denied
+      }
+    } else {
+      if permission_prompt(
+        "sys access",
+        self.name,
+        Some("Deno.permissions.query()"),
+      ) {
+        self.global_state = PermissionState::Granted;
+      } else {
+        self.granted_list.clear();
+        self.global_state = PermissionState::Denied;
+      }
+      self.global_state
+    }
+  }
+
+  pub fn revoke(&mut self, kind: Option<&str>) -> PermissionState {
+    if let Some(kind) = kind {
+      self.granted_list.remove(&SysDescriptor(kind.to_string()));
+    } else {
+      self.granted_list.clear();
+    }
+    if self.global_state == PermissionState::Granted {
+      self.global_state = PermissionState::Prompt;
+    }
+    self.query(kind)
+  }
+
+  pub fn check(
+    &mut self,
+    kind: &str,
+    api_name: Option<&str>,
+  ) -> Result<(), AnyError> {
+    let (result, prompted) = self.query(Some(kind)).check(
+      self.name,
+      api_name,
+      Some(&format!("\"{}\"", kind)),
+      self.prompt,
+    );
+    if prompted {
+      if result.is_ok() {
+        self.granted_list.insert(SysDescriptor(kind.to_string()));
+      } else {
+        self.denied_list.insert(SysDescriptor(kind.to_string()));
+        self.global_state = PermissionState::Denied;
+      }
+    }
+    result
+  }
+
+  pub fn check_all(&mut self) -> Result<(), AnyError> {
+    let (result, prompted) =
+      self
+        .query(None)
+        .check(self.name, None, Some("all"), self.prompt);
+    if prompted {
+      if result.is_ok() {
+        self.global_state = PermissionState::Granted;
+      } else {
+        self.global_state = PermissionState::Denied;
+      }
+    }
+    result
+  }
+}
+
+impl Default for UnaryPermission<SysDescriptor> {
+  fn default() -> Self {
+    UnaryPermission::<SysDescriptor> {
+      name: "sys",
+      description: "system information",
+      global_state: Default::default(),
+      granted_list: Default::default(),
+      denied_list: Default::default(),
+      prompt: false,
+    }
+  }
+}
+
 impl UnaryPermission<RunDescriptor> {
   pub fn query(&self, cmd: Option<&str>) -> PermissionState {
     if self.global_state == PermissionState::Denied
@@ -1221,6 +1346,7 @@ pub struct Permissions {
   pub write: UnaryPermission<WriteDescriptor>,
   pub net: UnaryPermission<NetDescriptor>,
   pub env: UnaryPermission<EnvDescriptor>,
+  pub sys: UnaryPermission<SysDescriptor>,
   pub run: UnaryPermission<RunDescriptor>,
   pub ffi: UnaryPermission<FfiDescriptor>,
   pub hrtime: UnitPermission,
@@ -1233,6 +1359,7 @@ impl Default for Permissions {
       write: Permissions::new_write(&None, false).unwrap(),
       net: Permissions::new_net(&None, false).unwrap(),
       env: Permissions::new_env(&None, false).unwrap(),
+      sys: Permissions::new_sys(&None, false).unwrap(),
       run: Permissions::new_run(&None, false).unwrap(),
       ffi: Permissions::new_ffi(&None, false).unwrap(),
       hrtime: Permissions::new_hrtime(false),
@@ -1248,6 +1375,7 @@ pub struct PermissionsOptions {
   pub allow_ffi: Option<Vec<PathBuf>>,
   pub allow_read: Option<Vec<PathBuf>>,
   pub allow_run: Option<Vec<String>>,
+  pub allow_sys: Option<Vec<String>>,
   pub allow_write: Option<Vec<PathBuf>>,
   pub prompt: bool,
 }
@@ -1321,6 +1449,31 @@ impl Permissions {
     })
   }
 
+  pub fn new_sys(
+    state: &Option<Vec<String>>,
+    prompt: bool,
+  ) -> Result<UnaryPermission<SysDescriptor>, AnyError> {
+    Ok(UnaryPermission::<SysDescriptor> {
+      global_state: global_state_from_option(state),
+      granted_list: state.as_ref().map_or_else(
+        || Ok(HashSet::new()),
+        |v| {
+          v.iter()
+            .map(|x| {
+              if x.is_empty() {
+                Err(AnyError::msg("emtpy"))
+              } else {
+                Ok(SysDescriptor(x.to_string()))
+              }
+            })
+            .collect()
+        },
+      )?,
+      prompt,
+      ..Default::default()
+    })
+  }
+
   pub fn new_run(
     state: &Option<Vec<String>>,
     prompt: bool,
@@ -1373,6 +1526,7 @@ impl Permissions {
       write: Permissions::new_write(&opts.allow_write, opts.prompt)?,
       net: Permissions::new_net(&opts.allow_net, opts.prompt)?,
       env: Permissions::new_env(&opts.allow_env, opts.prompt)?,
+      sys: Permissions::new_sys(&opts.allow_sys, opts.prompt)?,
       run: Permissions::new_run(&opts.allow_run, opts.prompt)?,
       ffi: Permissions::new_ffi(&opts.allow_ffi, opts.prompt)?,
       hrtime: Permissions::new_hrtime(opts.allow_hrtime),
@@ -1385,6 +1539,7 @@ impl Permissions {
       write: Permissions::new_write(&Some(vec![]), false).unwrap(),
       net: Permissions::new_net(&Some(vec![]), false).unwrap(),
       env: Permissions::new_env(&Some(vec![]), false).unwrap(),
+      sys: Permissions::new_sys(&Some(vec![]), false).unwrap(),
       run: Permissions::new_run(&Some(vec![]), false).unwrap(),
       ffi: Permissions::new_ffi(&Some(vec![]), false).unwrap(),
       hrtime: Permissions::new_hrtime(true),
@@ -1722,6 +1877,7 @@ pub struct ChildPermissionsArg {
   ffi: ChildUnaryPermissionArg,
   read: ChildUnaryPermissionArg,
   run: ChildUnaryPermissionArg,
+  sys: ChildUnaryPermissionArg,
   write: ChildUnaryPermissionArg,
 }
 
@@ -1734,6 +1890,7 @@ impl ChildPermissionsArg {
       ffi: ChildUnaryPermissionArg::Inherit,
       read: ChildUnaryPermissionArg::Inherit,
       run: ChildUnaryPermissionArg::Inherit,
+      sys: ChildUnaryPermissionArg::Inherit,
       write: ChildUnaryPermissionArg::Inherit,
     }
   }
@@ -1746,6 +1903,7 @@ impl ChildPermissionsArg {
       ffi: ChildUnaryPermissionArg::NotGranted,
       read: ChildUnaryPermissionArg::NotGranted,
       run: ChildUnaryPermissionArg::NotGranted,
+      sys: ChildUnaryPermissionArg::NotGranted,
       write: ChildUnaryPermissionArg::NotGranted,
     }
   }
@@ -1822,6 +1980,11 @@ impl<'de> Deserialize<'de> for ChildPermissionsArg {
             child_permissions_arg.run = arg.map_err(|e| {
               de::Error::custom(format!("(deno.permissions.run) {}", e))
             })?;
+          } else if key == "sys" {
+            let arg = serde_json::from_value::<ChildUnaryPermissionArg>(value);
+            child_permissions_arg.sys = arg.map_err(|e| {
+              de::Error::custom(format!("(deno.permissions.sys) {}", e))
+            })?;
           } else if key == "write" {
             let arg = serde_json::from_value::<ChildUnaryPermissionArg>(value);
             child_permissions_arg.write = arg.map_err(|e| {
@@ -1872,6 +2035,35 @@ pub fn create_child_permissions(
     worker_perms.env.global_state = PermissionState::Denied;
   }
   worker_perms.env.prompt = main_perms.env.prompt;
+  match child_permissions_arg.sys {
+    ChildUnaryPermissionArg::Inherit => {
+      worker_perms.sys = main_perms.sys.clone();
+    }
+    ChildUnaryPermissionArg::Granted => {
+      if main_perms.sys.check_all().is_err() {
+        return Err(escalation_error());
+      }
+      worker_perms.sys.global_state = PermissionState::Granted;
+    }
+    ChildUnaryPermissionArg::NotGranted => {}
+    ChildUnaryPermissionArg::GrantedList(granted_list) => {
+      worker_perms.sys.granted_list =
+        Permissions::new_sys(&Some(granted_list), false)?.granted_list;
+      if !worker_perms
+        .sys
+        .granted_list
+        .iter()
+        .all(|desc| main_perms.sys.check(&desc.0, None).is_ok())
+      {
+        return Err(escalation_error());
+      }
+    }
+  }
+  worker_perms.sys.denied_list = main_perms.sys.denied_list.clone();
+  if main_perms.sys.global_state == PermissionState::Denied {
+    worker_perms.sys.global_state = PermissionState::Denied;
+  }
+  worker_perms.sys.prompt = main_perms.sys.prompt;
   match child_permissions_arg.hrtime {
     ChildUnitPermissionArg::Inherit => {
       worker_perms.hrtime = main_perms.hrtime.clone();
@@ -2608,6 +2800,10 @@ mod tests {
         global_state: PermissionState::Prompt,
         ..Permissions::new_env(&Some(svec!["HOME"]), false).unwrap()
       },
+      sys: UnaryPermission {
+        global_state: PermissionState::Prompt,
+        ..Permissions::new_sys(&Some(svec!["hostname"]), false).unwrap()
+      },
       run: UnaryPermission {
         global_state: PermissionState::Prompt,
         ..Permissions::new_run(&Some(svec!["deno"]), false).unwrap()
@@ -2642,6 +2838,10 @@ mod tests {
       assert_eq!(perms1.env.query(Some("HOME")), PermissionState::Granted);
       assert_eq!(perms2.env.query(None), PermissionState::Prompt);
       assert_eq!(perms2.env.query(Some("HOME")), PermissionState::Granted);
+      assert_eq!(perms1.sys.query(None), PermissionState::Granted);
+      assert_eq!(perms1.sys.query(Some("HOME")), PermissionState::Granted);
+      assert_eq!(perms2.env.query(None), PermissionState::Prompt);
+      assert_eq!(perms2.sys.query(Some("hostname")), PermissionState::Granted);
       assert_eq!(perms1.run.query(None), PermissionState::Granted);
       assert_eq!(perms1.run.query(Some("deno")), PermissionState::Granted);
       assert_eq!(perms2.run.query(None), PermissionState::Prompt);
@@ -2681,6 +2881,11 @@ mod tests {
       prompt_value.set(false);
       assert_eq!(perms.env.request(Some("HOME")), PermissionState::Granted);
       prompt_value.set(true);
+      assert_eq!(perms.sys.request(Some("hostname")), PermissionState::Granted);
+      assert_eq!(perms.sys.query(None), PermissionState::Prompt);
+      prompt_value.set(false);
+      assert_eq!(perms.sys.request(Some("hostname")), PermissionState::Granted);
+      prompt_value.set(true);
       assert_eq!(perms.run.request(Some("deno")), PermissionState::Granted);
       assert_eq!(perms.run.query(None), PermissionState::Prompt);
       prompt_value.set(false);
@@ -2728,6 +2933,10 @@ mod tests {
         global_state: PermissionState::Prompt,
         ..Permissions::new_env(&Some(svec!["HOME"]), false).unwrap()
       },
+      sys: UnaryPermission {
+        global_state: PermissionState::Prompt,
+        ..Permissions::new_sys(&Some(svec!["hostname"]), false).unwrap()
+      },
       run: UnaryPermission {
         global_state: PermissionState::Prompt,
         ..Permissions::new_run(&Some(svec!["deno"]), false).unwrap()
@@ -2754,6 +2963,7 @@ mod tests {
       assert_eq!(perms.net.query(Some(&("127.0.0.1", None))), PermissionState::Prompt);
       assert_eq!(perms.net.query(Some(&("127.0.0.1", Some(8000)))), PermissionState::Granted);
       assert_eq!(perms.env.revoke(Some("HOME")), PermissionState::Prompt);
+      assert_eq!(perms.env.revoke(Some("hostname")), PermissionState::Prompt);
       assert_eq!(perms.run.revoke(Some("deno")), PermissionState::Prompt);
       assert_eq!(perms.ffi.revoke(Some(Path::new("deno"))), PermissionState::Prompt);
       assert_eq!(perms.hrtime.revoke(), PermissionState::Denied);
@@ -2767,6 +2977,7 @@ mod tests {
       write: Permissions::new_write(&None, true).unwrap(),
       net: Permissions::new_net(&None, true).unwrap(),
       env: Permissions::new_env(&None, true).unwrap(),
+      sys: Permissions::new_sys(&None, true).unwrap(),
       run: Permissions::new_run(&None, true).unwrap(),
       ffi: Permissions::new_ffi(&None, true).unwrap(),
       hrtime: Permissions::new_hrtime(false),
@@ -2807,6 +3018,12 @@ mod tests {
     assert!(perms.env.check("HOME").is_ok());
     assert!(perms.env.check("PATH").is_err());
 
+    prompt_value.set(true);
+    assert!(perms.env.check("hostname").is_ok());
+    prompt_value.set(false);
+    assert!(perms.env.check("hostname").is_ok());
+    assert!(perms.env.check("osRelease").is_err());
+
     assert!(perms.hrtime.check().is_err());
   }
 
@@ -2817,6 +3034,7 @@ mod tests {
       write: Permissions::new_write(&None, true).unwrap(),
       net: Permissions::new_net(&None, true).unwrap(),
       env: Permissions::new_env(&None, true).unwrap(),
+      sys: Permissions::new_sys(&None, true).unwrap(),
       run: Permissions::new_run(&None, true).unwrap(),
       ffi: Permissions::new_ffi(&None, true).unwrap(),
       hrtime: Permissions::new_hrtime(false),
@@ -2867,6 +3085,14 @@ mod tests {
     assert!(perms.env.check("PATH").is_ok());
 
     prompt_value.set(false);
+    assert!(perms.sys.check("hostname", None).is_err());
+    prompt_value.set(true);
+    assert!(perms.sys.check("hostname", None).is_err());
+    assert!(perms.sys.check("osRelease", None).is_ok());
+    prompt_value.set(false);
+    assert!(perms.sys.check("osRelease", None).is_ok());
+
+    prompt_value.set(false);
     assert!(perms.hrtime.check().is_err());
     prompt_value.set(true);
     assert!(perms.hrtime.check().is_err());
@@ -2902,6 +3128,7 @@ mod tests {
         ffi: ChildUnaryPermissionArg::Inherit,
         read: ChildUnaryPermissionArg::Inherit,
         run: ChildUnaryPermissionArg::Inherit,
+        sys: ChildUnaryPermissionArg::Inherit,
         write: ChildUnaryPermissionArg::Inherit,
       }
     );
@@ -2914,6 +3141,7 @@ mod tests {
         ffi: ChildUnaryPermissionArg::NotGranted,
         read: ChildUnaryPermissionArg::NotGranted,
         run: ChildUnaryPermissionArg::NotGranted,
+        sys: ChildUnaryPermissionArg::NotGranted,
         write: ChildUnaryPermissionArg::NotGranted,
       }
     );
@@ -2966,6 +3194,7 @@ mod tests {
         "ffi": true,
         "read": true,
         "run": true,
+        "sys": true,
         "write": true,
       }))
       .unwrap(),
@@ -2975,6 +3204,7 @@ mod tests {
         ffi: ChildUnaryPermissionArg::Granted,
         read: ChildUnaryPermissionArg::Granted,
         run: ChildUnaryPermissionArg::Granted,
+        sys: ChildUnaryPermissionArg::Granted,
         write: ChildUnaryPermissionArg::Granted,
         ..ChildPermissionsArg::none()
       }
@@ -2986,6 +3216,7 @@ mod tests {
         "ffi": false,
         "read": false,
         "run": false,
+        "sys": false,
         "write": false,
       }))
       .unwrap(),
@@ -2995,6 +3226,7 @@ mod tests {
         ffi: ChildUnaryPermissionArg::NotGranted,
         read: ChildUnaryPermissionArg::NotGranted,
         run: ChildUnaryPermissionArg::NotGranted,
+        sys: ChildUnaryPermissionArg::NotGranted,
         write: ChildUnaryPermissionArg::NotGranted,
         ..ChildPermissionsArg::none()
       }
@@ -3006,6 +3238,7 @@ mod tests {
         "ffi": ["foo", "file:///bar/baz"],
         "read": ["foo", "file:///bar/baz"],
         "run": ["foo", "file:///bar/baz", "./qux"],
+        "sys": ["hostname", "osRelease"],
         "write": ["foo", "file:///bar/baz"],
       }))
       .unwrap(),
@@ -3025,6 +3258,10 @@ mod tests {
           "file:///bar/baz",
           "./qux"
         ]),
+        sys: ChildUnaryPermissionArg::GrantedList(svec![
+          "hostname",
+          "osRelease"
+        ]),
         write: ChildUnaryPermissionArg::GrantedList(svec![
           "foo",
           "file:///bar/baz"
@@ -3129,6 +3366,7 @@ mod tests {
   fn test_handle_empty_value() {
     assert!(Permissions::new_read(&Some(vec![PathBuf::new()]), false).is_err());
     assert!(Permissions::new_env(&Some(vec![String::new()]), false).is_err());
+    assert!(Permissions::new_sys(&Some(vec![String::new()]), false).is_err());
     assert!(Permissions::new_run(&Some(vec![String::new()]), false).is_err());
     assert!(Permissions::new_ffi(&Some(vec![PathBuf::new()]), false).is_err());
     assert!(Permissions::new_net(&Some(svec![String::new()]), false).is_err());