dovecot - Jun 2014 - SIGSEGV in 2.2.13 with IMAP Proxying to an Exchange Server (dovecot/auth)

Reading symbols from /usr/lib/dovecot/auth...Reading symbols from
/usr/lib/debug//usr/lib/dovecot/auth...done.
done.
Attaching to program: /usr/lib/dovecot/auth, process 29099
[New LWP 29099]
Core was generated by `dovecot/auth'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007f40b534c418 in array_append_i (count=<optimized out>,
data=<optimized out>, array=<optimized out>) at
../../src/lib/array.h:148
#0  0x00007f40b534c418 in array_append_i (count=<optimized out>,
data=<optimized out>, array=<optimized out>) at
../../src/lib/array.h:148
No locals.
#1  imapc_connection_abort_commands_array (cmd_array=cmd_array at
entry=0x2075270, dest_array=dest_array at entry=0x7fff4b6aa810,
    only_box=only_box at entry=0x0, keep_retriable=keep_retriable at
entry=false) at imapc-connection.c:236
        cmd = 0x7f40b61e3c1d <buffer_alloc+45>
        i = 0
#2  0x00007f40b534c69d in imapc_connection_abort_commands (conn=0x20751a0,
only_box=0x0, keep_retriable=<optimized out>)
    at imapc-connection.c:250
        cmdp = <optimized out>
        cmd = <optimized out>
        tmp_array = {arr = {buffer = 0x203f6a0, element_size = 8}, v =
0x203f6a0, v_modifiable = 0x203f6a0}
        reply = {state = IMAPC_COMMAND_STATE_DISCONNECTED, resp_text_key = 0x0,
resp_text_value = 0x0,
          text_full = 0x7f40b534f6a6 "Disconnected from server",
text_without_resp = 0x7f40b534f6a6 "Disconnected from server"}
#3  0x00007f40b61f7d7f in io_loop_handle_timeouts_real (ioloop=0x2047790) at
ioloop.c:410
        timeout = 0x2077e00
        item = 0x2077e00
        tv = {tv_sec = 0, tv_usec = 0}
        tv_call = {tv_sec = 1403450802, tv_usec = 614093}
        t_id = 3
#4  io_loop_handle_timeouts (ioloop=ioloop at entry=0x2047790) at ioloop.c:423
        _data_stack_cur_id = 2
#5  0x00007f40b61f8d34 in io_loop_handler_run_internal (ioloop=ioloop at
entry=0x2047790) at ioloop-epoll.c:193
        ctx = 0x204d270
        list = <optimized out>
        io = <optimized out>
        tv = {tv_sec = 29, tv_usec = 999992}
        events_count = <optimized out>
        msecs = 30000
        ret = 0
        i = <optimized out>
        call = <optimized out>
        __FUNCTION__ = "io_loop_handler_run_internal"
#6  0x00007f40b61f7ed9 in io_loop_handler_run (ioloop=ioloop at entry=0x2047790)
at ioloop.c:488
No locals.
#7  0x00007f40b61f7f58 in io_loop_run (ioloop=0x2047790) at ioloop.c:465
        __FUNCTION__ = "io_loop_run"
#8  0x00007f40b61a7133 in master_service_run (service=0x2047620,
callback=<optimized out>) at master-service.c:566
No locals.
#9  0x000000000040b96b in main (argc=1, argv=0x2047390) at main.c:393
        c = <optimized out>

----- End forwarded message -----
-- 
Ralf Hildebrandt
  Gesch?ftsbereich IT | Abteilung Netzwerk
  Charit? - Universit?tsmedizin Berlin
  Campus Benjamin Franklin
  Hindenburgdamm 30 | D-12203 Berlin
  Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962
  ralf.hildebrandt at charite.de | http://www.charite.de