[Dovecot] doveadm segfaults on TCP connect - version 2.0.15

ghandidrivesahumvee at rocketfish.com ghandidrivesahumvee at rocketfish.com
Wed Oct 19 23:49:55 EEST 2011 

Looks like my mail client cut the original message short.

Here is doveconf and gdb output

[root at mail02 ~]# /opt/dovecot/bin/doveconf -n
# 2.0.15: /opt/dovecot-2.0.15/etc/dovecot/dovecot.conf
# OS: Linux 2.6.18-194.17.4.el5 x86_64 CentOS release 5.5 (Final)
auth_mechanisms = plain login
auth_verbose = yes
auth_worker_max_count = 60
default_client_limit = 2048
disable_plaintext_auth = no
doveadm_proxy_port = 544
lda_mailbox_autocreate = yes
lda_mailbox_autosubscribe = yes
listen = 10.10.5.220, 127.0.0.1
lmtp_save_to_detail_mailbox = yes
mail_fsync = always
mail_log_prefix = "%r mpid=%p %s(%u): "
mail_nfs_index = yes
mail_nfs_storage = yes
mail_plugins = " notify mail_log"
managesieve_notify_capability = mailto
managesieve_sieve_capability = fileinto reject envelope encoded-character
vacation subaddress comparator-i;ascii-numeric relational regex imap4flags
copy include variables body enotify environment mailbox date ihave
mmap_disable = yes
passdb {
  args = /opt/dovecot/etc/dovecot/conf.d/dovecot-sql.conf.ext
  driver = sql
}
plugin {
  mail_log_events = delete expunge mailbox_delete
  mail_log_fields = msgid box from
  mail_log_group_events = yes
  sieve = ~/MainSieve
  sieve_before = /storage03/sieve/before/
  sieve_dir = ~/sieve
  sieve_max_actions = 32
  sieve_max_redirects = 4
  sieve_max_script_size = 2M
}
quota_full_tempfail = yes
service anvil {
  client_limit = 2000
}
service auth {
  client_limit = 7000
  unix_listener /var/spool/postfix/private/auth {
    mode = 0600
    user = postfix
  }
  unix_listener auth-userdb {
    group = mailowner
    mode = 0600
    user = mailowner
  }
}
service doveadm {
  inet_listener {
    port = 544
  }
}
service imap-login {
  inet_listener imap {
    port = 143
  }
  process_min_avail = 4
  service_count = 0
  vsz_limit = 128 M
}
service imap {
  process_limit = 3072
}
service lmtp {
  inet_listener lmtp {
    port = 24
  }
  vsz_limit = 2 G
}
service pop3-login {
  inet_listener pop3 {
    port = 110
  }
}
service pop3 {
  process_limit = 3072
}

syslog_facility = local3
userdb {
  args = /opt/dovecot/etc/dovecot/conf.d/dovecot-sql.conf.ext
  driver = sql
}
protocol imap {
  mail_max_userip_connections = 2000
}
protocol lmtp {
  lmtp_save_to_detail_mailbox = yes
  mail_plugins = sieve
}
protocol pop3 {
  pop3_uidl_format = %08Xu%08Xv
}


[root at mail02 ~]# gdb /opt/dovecot/bin/doveadm ./core.14731
GNU gdb (GDB) Red Hat Enterprise Linux (7.0.1-23.el5_5.2)
Copyright (C) 2009 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-redhat-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /opt/dovecot-2.0.15/bin/doveadm...done.
Reading symbols from
/opt/dovecot-2.0.15/lib/dovecot/libdovecot-storage.so.0...done.
Loaded symbols for /opt/dovecot-2.0.15/lib/dovecot/libdovecot-storage.so.0
Reading symbols from /lib64/libpam.so.0...(no debugging symbols
found)...done.
Loaded symbols for /lib64/libpam.so.0
Reading symbols from /usr/lib64/libgssapi_krb5.so.2...(no debugging
symbols found)...done.
Loaded symbols for /usr/lib64/libgssapi_krb5.so.2
Reading symbols from /usr/lib64/libkrb5.so.3...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib64/libkrb5.so.3
Reading symbols from /usr/lib64/libk5crypto.so.3...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib64/libk5crypto.so.3
Reading symbols from /lib64/libcom_err.so.2...(no debugging symbols
found)...done.
Loaded symbols for /lib64/libcom_err.so.2
Reading symbols from /usr/lib64/mysql/libmysqlclient.so.15...(no debugging
symbols found)...done.
Loaded symbols for /usr/lib64/mysql/libmysqlclient.so.15
Reading symbols from /usr/lib64/libz.so.1...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib64/libz.so.1
Reading symbols from /lib64/libcrypt.so.1...(no debugging symbols
found)...done.
Loaded symbols for /lib64/libcrypt.so.1
Reading symbols from /lib64/libnsl.so.1...(no debugging symbols
found)...done.
Loaded symbols for /lib64/libnsl.so.1
Reading symbols from /lib64/libm.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib64/libm.so.6
Reading symbols from /lib64/libssl.so.6...(no debugging symbols
found)...done.
Loaded symbols for /lib64/libssl.so.6
Reading symbols from /lib64/libcrypto.so.6...(no debugging symbols
found)...done.
Loaded symbols for /lib64/libcrypto.so.6
Reading symbols from /opt/dovecot-2.0.15/lib/dovecot/libdovecot.so.0...done.
Loaded symbols for /opt/dovecot-2.0.15/lib/dovecot/libdovecot.so.0
Reading symbols from /lib64/libdl.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/libdl.so.2
Reading symbols from /lib64/librt.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib64/librt.so.1
Reading symbols from /lib64/libc.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib64/libc.so.6
Reading symbols from /lib64/libaudit.so.0...(no debugging symbols
found)...done.
Loaded symbols for /lib64/libaudit.so.0
Reading symbols from /usr/lib64/libkrb5support.so.0...(no debugging
symbols found)...done.
Loaded symbols for /usr/lib64/libkrb5support.so.0
Reading symbols from /lib64/libkeyutils.so.1...(no debugging symbols
found)...done.
Loaded symbols for /lib64/libkeyutils.so.1
Reading symbols from /lib64/libresolv.so.2...(no debugging symbols
found)...done.
Loaded symbols for /lib64/libresolv.so.2
Reading symbols from /lib64/ld-linux-x86-64.so.2...(no debugging symbols
found)...done.
Loaded symbols for /lib64/ld-linux-x86-64.so.2
Reading symbols from /lib64/libpthread.so.0...(no debugging symbols
found)...done.
Loaded symbols for /lib64/libpthread.so.0
Reading symbols from /lib64/libselinux.so.1...(no debugging symbols
found)...done.
Loaded symbols for /lib64/libselinux.so.1
Reading symbols from /lib64/libsepol.so.1...(no debugging symbols
found)...done.
Loaded symbols for /lib64/libsepol.so.1
Reading symbols from
/opt/dovecot-2.0.15/lib/dovecot/lib15_notify_plugin.so...done.
Loaded symbols for /opt/dovecot-2.0.15/lib/dovecot/lib15_notify_plugin.so
Reading symbols from
/opt/dovecot-2.0.15/lib/dovecot/lib20_mail_log_plugin.so...done.
Loaded symbols for /opt/dovecot-2.0.15/lib/dovecot/lib20_mail_log_plugin.so
Core was generated by `/opt/dovecot/bin/doveadm who -a 172.16.5.234:544'.
Program terminated with signal 11, Segmentation fault.
#0  0x0000003a6be349fa in ____strtoull_l_internal () from /lib64/libc.so.6
(gdb) bt full
#0  0x0000003a6be349fa in ____strtoull_l_internal () from /lib64/libc.so.6
No symbol table info available.
#1  0x00000000004170f9 in who_parse_line (ctx=0x7fff05cb2990,
callback=0x4175e0 <who_aggregate_line>) at /usr/include/stdlib.h:342
        ident = 0x14149980 "-"
        p = 0x1 <Address 0x1 out of bounds>
#2  who_lookup (ctx=0x7fff05cb2990, callback=0x4175e0
<who_aggregate_line>) at doveadm-who.c:152
        who_line = {username = 0x0, service = 0x0, ip = {family = 0, u =
{ip6 = {in6_u = {u6_addr8 = '\000' <repeats 15 times>, u6_addr16 =
{0, 0, 0, 0, 0, 0, 0, 0},
                  u6_addr32 = {0, 0, 0, 0}}}, ip4 = {s_addr = 0}}}, pid =
0, refcount = 0}
        _data_stack_cur_id = 2
        input = 0x1415efb0
        line = <value optimized out>
        fd = <value optimized out>
#3  0x0000000000417349 in cmd_who (argc=3, argv=0x141494d8) at
doveadm-who.c:298
        ctx = {anvil_path = 0x14149518 "172.16.5.234:544", filter =
{username = 0x0, net_ip = {family = 0, u = {ip6 = {in6_u =
{u6_addr8 = '\000' <repeats 15 times>,
                    u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, u6_addr32 = {0,
0, 0, 0}}}, ip4 = {s_addr = 0}}}, net_bits = 0}, pool
= 0x1415b000, users = 0x1415d7f0}
        separate_connections = false
        c = <value optimized out>
#4  0x000000000040f9e3 in doveadm_try_run (argc=3, argv=0x141494d8) at
doveadm.c:192
        cmd = 0x14158e90
        cmd_name_len = 3
        __FUNCTION__ = "doveadm_try_run"
#5  main (argc=3, argv=0x141494d8) at doveadm.c:346
        cmd_name = 0x14149511 "who"
        quick_init = false
        c = <value optimized out>
(gdb)

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