[Dovecot] 2.0.19 segfault

[Mailing List SVR]

Hi,

after the upgrade from dovecot 2.0.13 (ubuntu oneiric) to dovecot 2.0.19 
(ubuntu precise), in my logs I have a lot of these errors:

Jun 23 00:20:29 server1 dovecot: master: Error: service(imap-login): 
child 6714 killed with signal 11 (core dumps disabled)

I tested 2.0.21 and the problem is still here. The problem seems to 
appear only when the client is ms outlook, thunderbird works fine

Here is the captured trace (I hope this is enough and I don't need to 
install debug symbols for everythings):

Core was generated by `dovecot/imap-login -D'.
Program terminated with signal 11, Segmentation fault.
#0  0x00007f4d01c1a031 in RC4 () from 
/lib/x86_64-linux-gnu/libcrypto.so.1.0.0
(gdb) bt full
#0  0x00007f4d01c1a031 in RC4 () from 
/lib/x86_64-linux-gnu/libcrypto.so.1.0.0
No symbol table info available.
#1  0x0000000000000134 in ?? ()
No symbol table info available.
#2  0x00000000000000cd in ?? ()
No symbol table info available.
#3  0x00007f4d03e97470 in ?? ()
No symbol table info available.
#4  0x00007f4d01c80629 in ?? () from 
/lib/x86_64-linux-gnu/libcrypto.so.1.0.0
No symbol table info available.
#5  0x00007f4d01f82bcf in ?? () from /lib/x86_64-linux-gnu/libssl.so.1.0.0
No symbol table info available.
#6  0x00007f4d01f79e04 in ?? () from /lib/x86_64-linux-gnu/libssl.so.1.0.0
No symbol table info available.
#7  0x00007f4d01f7a134 in ?? () from /lib/x86_64-linux-gnu/libssl.so.1.0.0
No symbol table info available.
#8  0x00007f4d027fed6f in ssl_write (proxy=0x7f4d03e7c0a0)
     at ssl-proxy-openssl.c:499
         ret = <optimized out>
#9  0x00007f4d027fee68 in plain_read (proxy=0x7f4d03e7c0a0)
     at ssl-proxy-openssl.c:308
         ret = <optimized out>
         corked = true
---Type <return> to continue, or q <return> to quit---
#10 0x00007f4d025b5c98 in io_loop_call_io (io=0x7f4d03e84b10) at 
ioloop.c:384
         ioloop = 0x7f4d03e3e680
         t_id = 2
#11 0x00007f4d025b6d27 in io_loop_handler_run (ioloop=<optimized out>)
     at ioloop-epoll.c:213
         ctx = 0x7f4d03e505a0
         events = 0x6579351d
         event = 0x7f4d03e50610
         list = 0x7f4d03e93690
         io = <optimized out>
         tv = {tv_sec = 59, tv_usec = 999832}
         msecs = <optimized out>
         ret = 1
         i = <optimized out>
         call = <optimized out>
#12 0x00007f4d025b5c28 in io_loop_run (ioloop=0x7f4d03e3e680) at 
ioloop.c:405
No locals.
#13 0x00007f4d025a3e33 in master_service_run (service=0x7f4d03e3e550,
     callback=<optimized out>) at master-service.c:481
No locals.
#14 0x00007f4d027f7cc2 in main (argc=2, argv=0x7f4d03e3e370) at main.c:371
         set_pool = 0x7f4d03e3e880
         allow_core_dumps = <optimized out>
---Type <return> to continue, or q <return> to quit---
         login_socket = 0x7f4d02800763 "login"
         c = <optimized out>
#15 0x00007f4d021d676d in __libc_start_main ()
    from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#16 0x00007f4d02c2d5a9 in _start ()
No symbol table info available.

Nicola