Fix Netlink message length.

net/base/address_tracker_linux.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/base/address_tracker_linux.h"
 
 #include <errno.h>
 #include <linux/if.h>
 
 #include "base/logging.h"
@@ skipping 98 matching lines @@
 
   // Request dump of addresses.
   struct sockaddr_nl peer = {};
   peer.nl_family = AF_NETLINK;
 
   struct {
     struct nlmsghdr header;
     struct rtgenmsg msg;
   } request = {};
 
-  request.header.nlmsg_len = NLMSG_LENGTH(sizeof(request));
+  request.header.nlmsg_len = NLMSG_LENGTH(sizeof(request.msg));
   request.header.nlmsg_type = RTM_GETADDR;
   request.header.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
   request.header.nlmsg_pid = getpid();
   request.msg.rtgen_family = AF_UNSPEC;
 
   rv = HANDLE_EINTR(sendto(netlink_fd_, &request, request.header.nlmsg_len,
                            0, reinterpret_cast<struct sockaddr*>(&peer),
                            sizeof(peer)));
   if (rv < 0) {
     PLOG(ERROR) << "Could not send NETLINK request";
@@ skipping 176 matching lines @@
 void AddressTrackerLinux::OnFileCanWriteWithoutBlocking(int /* fd */) {}
 
 void AddressTrackerLinux::CloseSocket() {
   if (netlink_fd_ >= 0 && HANDLE_EINTR(close(netlink_fd_)) < 0)
     PLOG(ERROR) << "Could not close NETLINK socket.";
   netlink_fd_ = -1;
 }
 
 }  // namespace internal
 }  // namespace net