WARNING: DATA RACE
Write at 0x00c1165aca28 by goroutine 2711:
  gvisor.dev/gvisor/pkg/tcpip/stack.(*PacketBuffer).reset()
      pkg/tcpip/stack/packet_buffer.go:201 +0x78
  gvisor.dev/gvisor/pkg/tcpip/stack.NewPacketBuffer()
      pkg/tcpip/stack/packet_buffer.go:167 +0x66
  gvisor.dev/gvisor/pkg/tcpip/link/loopback.(*endpoint).WriteRawPacket()
      pkg/tcpip/link/loopback/loopback.go:104 +0x132
  gvisor.dev/gvisor/pkg/tcpip/link/loopback.(*endpoint).WritePacket()
      pkg/tcpip/link/loopback/loopback.go:80 +0x45
  gvisor.dev/gvisor/pkg/tcpip/link/nested.(*Endpoint).WritePacket()
      pkg/tcpip/link/nested/nested.go:107 +0x1cc
  gvisor.dev/gvisor/pkg/tcpip/link/ethernet.(*Endpoint).WritePacket()
      pkg/tcpip/link/ethernet/ethernet.go:78 +0xd6
  gvisor.dev/gvisor/pkg/tcpip/link/nested.(*Endpoint).WritePacket()
      pkg/tcpip/link/nested/nested.go:107 +0x16c
  gvisor.dev/gvisor/pkg/tcpip/link/sniffer.(*endpoint).WritePacket()
      pkg/tcpip/link/sniffer/sniffer.go:169 +0x77
  gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).writePacket()
      pkg/tcpip/stack/nic.go:382 +0x28c
  gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).writePacketBuffer()
      pkg/tcpip/stack/nic.go:326 +0x111
  gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).enqueuePacketBuffer()
      pkg/tcpip/stack/nic.go:341 +0x2dc
  gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).WritePacket()
      pkg/tcpip/stack/nic.go:319 +0x64
  gvisor.dev/gvisor/pkg/tcpip/network/ipv4.(*endpoint).writePacket()
      pkg/tcpip/network/ipv4/ipv4.go:503 +0x58f
  gvisor.dev/gvisor/pkg/tcpip/network/ipv4.(*endpoint).WritePacket()
      pkg/tcpip/network/ipv4/ipv4.go:453 +0x2bd
  gvisor.dev/gvisor/pkg/tcpip/stack.(*Route).WritePacket()
      pkg/tcpip/stack/route.go:462 +0x11b
  gvisor.dev/gvisor/pkg/tcpip/transport/tcp.sendTCP()
      pkg/tcpip/transport/tcp/connect.go:891 +0x430
  gvisor.dev/gvisor/pkg/tcpip/transport/tcp.(*endpoint).sendTCP()
      pkg/tcpip/transport/tcp/connect.go:781 +0x17e
  gvisor.dev/gvisor/pkg/tcpip/transport/tcp.(*endpoint).sendSynTCP()
      pkg/tcpip/transport/tcp/connect.go:772 +0x147
  gvisor.dev/gvisor/pkg/tcpip/transport/tcp.(*handshake).start()
      pkg/tcpip/transport/tcp/connect.go:509 +0x6f4
  gvisor.dev/gvisor/pkg/tcpip/transport/tcp.(*endpoint).connect()
      pkg/tcpip/transport/tcp/endpoint.go:2356 +0xe35
  gvisor.dev/gvisor/pkg/tcpip/transport/tcp.(*endpoint).Connect()
      pkg/tcpip/transport/tcp/endpoint.go:2089 +0x8e
  gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*socketOpsCommon).Connect()
      pkg/sentry/socket/netstack/netstack.go:622 +0x452
  gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*SocketVFS2).Connect()
      <autogenerated>:1 +0x84
  gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.Connect()
      pkg/sentry/syscalls/linux/vfs2/socket.go:275 +0x258
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall()
      pkg/sentry/kernel/task_syscall.go:103 +0x452
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke()
      pkg/sentry/kernel/task_syscall.go:238 +0xb3
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter()
      pkg/sentry/kernel/task_syscall.go:198 +0x10e
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall()
      pkg/sentry/kernel/task_syscall.go:173 +0x213
  gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute()
      pkg/sentry/kernel/task_run.go:282 +0x12c6
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run()
      pkg/sentry/kernel/task_run.go:97 +0x352

Previous read at 0x00c1165aca28 by goroutine 2898:
  gvisor.dev/gvisor/pkg/tcpip/stack.(*PacketBuffer).Clone()
      pkg/tcpip/stack/packet_buffer.go:327 +0x93
  gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).deliverOutboundPacket.func1()
      pkg/tcpip/stack/nic.go:824 +0xd8
  gvisor.dev/gvisor/pkg/tcpip/stack.(*packetEndpointList).forEach()
      pkg/tcpip/stack/nic.go:133 +0xf5
  gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).deliverOutboundPacket()
      pkg/tcpip/stack/nic.go:802 +0x214
  gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).writePacket()
      pkg/tcpip/stack/nic.go:380 +0x1c6
  gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).writePacketBuffer()
      pkg/tcpip/stack/nic.go:326 +0x111
  gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).enqueuePacketBuffer()
      pkg/tcpip/stack/nic.go:341 +0x2dc
  gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).WritePacket()
      pkg/tcpip/stack/nic.go:319 +0x64
  gvisor.dev/gvisor/pkg/tcpip/network/ipv4.(*endpoint).writePacket()
      pkg/tcpip/network/ipv4/ipv4.go:503 +0x58f
  gvisor.dev/gvisor/pkg/tcpip/network/ipv4.(*endpoint).WritePacket()
      pkg/tcpip/network/ipv4/ipv4.go:453 +0x2bd
  gvisor.dev/gvisor/pkg/tcpip/stack.(*Route).WritePacket()
      pkg/tcpip/stack/route.go:462 +0x11b
  gvisor.dev/gvisor/pkg/tcpip/network/ipv4.(*protocol).returnError()
      pkg/tcpip/network/ipv4/icmp.go:681 +0xf87
  gvisor.dev/gvisor/pkg/tcpip/network/ipv4.(*endpoint).handleValidatedPacket()
      pkg/tcpip/network/ipv4/ipv4.go:1076 +0x7fe
  gvisor.dev/gvisor/pkg/tcpip/network/ipv4.(*endpoint).HandlePacket()
      pkg/tcpip/network/ipv4/ipv4.go:854 +0x1e9
  gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).DeliverNetworkPacket()
      pkg/tcpip/stack/nic.go:784 +0x444
  gvisor.dev/gvisor/pkg/tcpip/link/nested.(*Endpoint).DeliverNetworkPacket()
      pkg/tcpip/link/nested/nested.go:59 +0xef
  gvisor.dev/gvisor/pkg/tcpip/link/sniffer.(*endpoint).DeliverNetworkPacket()
      pkg/tcpip/link/sniffer/sniffer.go:140 +0xa4
  gvisor.dev/gvisor/pkg/tcpip/link/nested.(*Endpoint).DeliverNetworkPacket()
      pkg/tcpip/link/nested/nested.go:59 +0xef
  gvisor.dev/gvisor/pkg/tcpip/link/ethernet.(*Endpoint).DeliverNetworkPacket()
      pkg/tcpip/link/ethernet/ethernet.go:63 +0x224
  gvisor.dev/gvisor/pkg/tcpip/link/loopback.(*endpoint).WriteRawPacket()
      pkg/tcpip/link/loopback/loopback.go:108 +0x1f5
  gvisor.dev/gvisor/pkg/tcpip/link/loopback.(*endpoint).WritePacket()
      pkg/tcpip/link/loopback/loopback.go:80 +0x45
  gvisor.dev/gvisor/pkg/tcpip/link/nested.(*Endpoint).WritePacket()
      pkg/tcpip/link/nested/nested.go:107 +0x1cc
  gvisor.dev/gvisor/pkg/tcpip/link/ethernet.(*Endpoint).WritePacket()
      pkg/tcpip/link/ethernet/ethernet.go:78 +0xd6
  gvisor.dev/gvisor/pkg/tcpip/link/nested.(*Endpoint).WritePacket()
      pkg/tcpip/link/nested/nested.go:107 +0x16c
  gvisor.dev/gvisor/pkg/tcpip/link/sniffer.(*endpoint).WritePacket()
      pkg/tcpip/link/sniffer/sniffer.go:169 +0x77
  gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).writePacket()
      pkg/tcpip/stack/nic.go:382 +0x28c
  gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).writePacketBuffer()
      pkg/tcpip/stack/nic.go:326 +0x111
  gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).enqueuePacketBuffer()
      pkg/tcpip/stack/nic.go:341 +0x2dc
  gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).WritePacket()
      pkg/tcpip/stack/nic.go:319 +0x64
  gvisor.dev/gvisor/pkg/tcpip/network/ipv4.(*endpoint).writePacket()
      pkg/tcpip/network/ipv4/ipv4.go:503 +0x58f
  gvisor.dev/gvisor/pkg/tcpip/network/ipv4.(*endpoint).WritePacket()
      pkg/tcpip/network/ipv4/ipv4.go:453 +0x2bd
  gvisor.dev/gvisor/pkg/tcpip/stack.(*Route).WritePacket()
      pkg/tcpip/stack/route.go:462 +0x11b
  gvisor.dev/gvisor/pkg/tcpip/transport/internal/network.(*WriteContext).WritePacket()
      pkg/tcpip/transport/internal/network/endpoint.go:248 +0x19a
  gvisor.dev/gvisor/pkg/tcpip/transport/udp.(*endpoint).write()
      pkg/tcpip/transport/udp/endpoint.go:467 +0x544
  gvisor.dev/gvisor/pkg/tcpip/transport/udp.(*endpoint).Write()
      pkg/tcpip/transport/udp/endpoint.go:332 +0x84
  gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*SocketVFS2).Write()
      pkg/sentry/socket/netstack/netstack_vfs2.go:132 +0x19c
  gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Write()
      pkg/sentry/vfs/file_description.go:657 +0x130
  gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.write()
      pkg/sentry/syscalls/linux/vfs2/read_write.go:345 +0xed
  gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.Write()
      pkg/sentry/syscalls/linux/vfs2/read_write.go:314 +0x307
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall()
      pkg/sentry/kernel/task_syscall.go:103 +0x452
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke()
      pkg/sentry/kernel/task_syscall.go:238 +0xb3
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter()
      pkg/sentry/kernel/task_syscall.go:198 +0x10e
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall()
      pkg/sentry/kernel/task_syscall.go:173 +0x213
  gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute()
      pkg/sentry/kernel/task_run.go:282 +0x12c6
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run()
      pkg/sentry/kernel/task_run.go:97 +0x352