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@@ -1,65 +0,0 @@
-
-DoS possible on - a QEMU process using userspace SLIRP?
-
-Steps to reproduce:
-
-- Launch a VM using QEMU:
-
-$ qemu-system-x86_64 -machine accel=kvm \
-                     -hda Fedora-Cloud-Base-25-1.3.x86_64.qcow2 \
-                     -m 2G \
-                     -smp 2 \
-                     -vnc :8 \
-                     -boot dc \
-                     -vga std \
-                     -cpu host \
-                     -net nic,vlan=0 \
-                     -net user,vlan=0,hostfwd=tcp::10024-:22,hostfwd=tcp::8082-:80
-
-- SSH into the VM, install httpd, start httpd
-
-$ ssh -p 10024 root@localhost 'dnf install -y httpd && systemctl start httpd'
-
-- Compile and run the following Java program:
-
-$ cat <<EOF > URLConnectionReader.java
-import java.net.*;
-import java.io.*;
-
-public class URLConnectionReader {
-    public static void main(String[] args) throws Exception {
-        int i = 0;
-        while (i < 1024) {
-            URL this_is_404 = new URL("http://localhost:8082/blah");
-            URLConnection yc = this_is_404.openConnection();
-            try {
-                BufferedReader in = new BufferedReader(new InputStreamReader(
-                            yc.getInputStream()));
-                String inputLine;
-                while ((inputLine = in.readLine()) != null)
-                    System.out.println(inputLine);
-                in.close();
-            } catch (Exception e) {
-                //HttpURLConnection urlConnection = (HttpURLConnection) yc;
-                //urlConnection.disconnect();
-            }
-            i++;
-        }
-        Thread.sleep(1000000000);
-    }
-}
-
-$ javac URLConnectionReader.java
-
-$ java URLConnectionReader &
-
-The java program tries to open a lot of HTTP connections, but never calls disconnect() on any.
-
-- Take a look at the list of open FDs of the qemu process:
-
-$ ls -tl /proc/${qemu-pid}/fd
-
-$ lsof -p ${qemu-pid}
-All of the TCP connections will be stuck at FIN_WAIT2
-
-The VM becomes unresponsive. Neither SSH or VNC works on this.
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