﻿id,summary,reporter,owner,description,type,status,component,version,resolution,keywords,cc,guest,host
12994,VBoxService segfault on guest control -- strcmp(),vekt,,"VBoxService segfaults when the host attempts any form of guest control (execute,
copyto, etc).

On the host

{{{
  $ vboxmanage guestcontrol kvm32 exec ""/bin/echo"" --username ""tc"" --password """" --verbose --args ""srp""
  Opening guest session as user 'tc' ...
  Waiting for guest session to start ...
  VBoxManage: error: Error starting guest session (current status is: starting)
  Closing guest session ...
}}}

See attached vboxservice.log for the guest's VBoxService's pre-segfault log.

VBoxService gdb backtrace

{{{
...
00:00:00.006717 control  Waiting for host msg ...
00:00:13.396728 control  Msg=20 (6 parms) retrieved
00:00:13.396969 control  Client ID=101 now is using protocol 2
00:00:13.397102 control  Forking new guest session ID=10, szUser=tc, szPassword=XXX, szDomain=, uFlags=0, using protocol 2
00:00:13.397183 control  Forking parameters:
00:00:13.397247 control         /opt/VBoxGuestAdditions-4.3.10/sbin/VBoxService
00:00:13.397357 control         guestsession
00:00:13.397461 control         --session-id=10
00:00:13.397668 control         --session-proto=2
00:00:13.397713 control         --user=tc
00:00:13.397772 control         -vvvv
[New LWP 21396]

Program received signal SIGSEGV, Segmentation fault.
[Switching to LWP 21396]
0xb7e9eb84 in strcmp () from /lib/libc.so.6
(gdb) bt
#0  0xb7e9eb84 in strcmp () from /lib/libc.so.6
#1  0x0805b41a in ?? ()
#2  0x0805b6b5 in ?? ()
#3  0x0805581c in ?? ()
#4  0x08050995 in ?? ()
#5  0x0805088c in ?? ()
#6  0x0804be8c in ?? ()
#7  0x08071a42 in ?? ()
#8  0x0805ae40 in ?? ()
#9  0xb7f9a6a4 in ?? () from /lib/libpthread.so.0
#10 0xb7ee649e in clone () from /lib/libc.so.6
(gdb) 
}}}

Ubuntu x64 host, TinyCore x86 guest, VirtualBox v4.3.10. Guest additions were
installed via the iso's VBoxLinuxAdditions.run.

How can I be of further help?",defect,closed,guest additions,VirtualBox 4.3.10,fixed,"VBoxService, segfault",,Linux,Linux
