net: check pipe mode and path

PR-URL: #50770
Reviewed-By: Vinícius Lourenço Claro Cardoso <[email protected]>
Reviewed-By: James M Snell <[email protected]>

Author: theanarkh

lib/net.js

@@ -2014,6 +2014,12 @@ Server.prototype.listen = function(...args) {
   // (path[, backlog][, cb]) or (options[, cb])
   // where path or options.path is a UNIX domain socket or Windows pipe
   if (options.path && isPipeName(options.path)) {
+    // We can not call fchmod on abstract unix socket
+    if (options.path[0] === '\0' &&
+        (options.readableAll || options.writableAll)) {
+      const msg = 'can not set readableAll or writableAllt to true when path is abstract unix socket';
+      throw new ERR_INVALID_ARG_VALUE('options', options, msg);
+    }
     const pipeName = this._pipeName = options.path;
     backlog = options.backlog || backlogFromArgs;
     listenInCluster(this,

test/parallel/test-pipe-abstract-socket.js

@@ -0,0 +1,34 @@
+'use strict';
+const common = require('../common');
+const assert = require('assert');
+const net = require('net');
+
+if (!common.isLinux) common.skip();
+
+const path = '\0abstract';
+const message = /can not set readableAll or writableAllt to true when path is abstract unix socket/;
+
+assert.throws(() => {
+  const server = net.createServer(common.mustNotCall());
+  server.listen({
+    path,
+    readableAll: true
+  });
+}, message);
+
+assert.throws(() => {
+  const server = net.createServer(common.mustNotCall());
+  server.listen({
+    path,
+    writableAll: true
+  });
+}, message);
+
+assert.throws(() => {
+  const server = net.createServer(common.mustNotCall());
+  server.listen({
+    path,
+    readableAll: true,
+    writableAll: true
+  });
+}, message);