2.2.32 'doveadm replicator replicate -f' segfault

[Aki Tuomi]

Hi!

Thanks for your report.

Aki

> On September 29, 2017 at 6:25 PM Robert Giles <rgiles at arlut.utexas.edu> wrote:
> 
> 
> Very minor bug;  not specifying the user mask with 'doveadm replicator 
> replicate -f' causes a segfault:
> 
> server:~# doveadm replicator replicate -f
> Segmentation fault
> 
> server:~# doveadm replicator replicate -f '*'
> 123 users updated
> 
> server:~# gdb /usr/bin/doveadm core.2418
> GNU gdb (GDB) Red Hat Enterprise Linux 7.6.1-100.el7
> This GDB was configured as "x86_64-redhat-linux-gnu".
> Reading symbols from /usr/bin/doveadm...Reading symbols from 
> /usr/lib/debug/usr/bin/doveadm.debug...done.
> done.
> [New LWP 2418]
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library "/lib64/libthread_db.so.1".
> Core was generated by `doveadm replicator replicate -f'.
> Program terminated with signal 11, Segmentation fault.
> #0  0x00007fd2c059f921 in __strlen_sse2_pminub () from /lib64/libc.so.6
> Missing separate debuginfos, use: debuginfo-install 
> bzip2-libs-1.0.6-13.el7.x86_64 glibc-2.17-196.el7.x86_64 
> nss-softokn-freebl-3.28.3-8.el7_4.x86_64 xz-libs-5.2.2-1.el7.x86_64 
> zlib-1.2.7-17.el7.x86_64
> (gdb) bt full
> #0  0x00007fd2c059f921 in __strlen_sse2_pminub () from /lib64/libc.so.6
> No symbol table info available.
> #1  0x00007fd2c08c68f4 in str_append_tabescaped 
> (dest=dest at entry=0x5578cd69f668, src=0x0) at strescape.c:136
> No locals.
> #2  0x00005578cb5a2731 in cmd_replicator_replicate (argc=1, 
> argv=0x5578cd6a75f8) at doveadm-replicator.c:245
>          ctx = 0x5578cd69f608
>          str = 0x5578cd69f668
>          line = <optimized out>
> #3  0x00005578cb5999d8 in doveadm_try_run (argv=0x5578cd6a75f0, argc=2, 
> cmd_name=0x5578cd6a7610 "replicator") at doveadm.c:223
>          cmd = <optimized out>
> #4  main (argc=3, argv=0x5578cd6a75e8) at doveadm.c:383
>          cctx = {cmd = 0x0, argc = 0, argv = 0x0, username = 
> 0x5578cd6a77cf "root", cli = true, tcp_server = false, local_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}}}, 
> remote_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}}}, local_port = 0, remote_port = 0, 
> conn = 0x0}
>          cmd_name = 0x5578cd6a7610 "replicator"
>          quick_init = false
>          c = <optimized out>
> (gdb) frame 4
> #4  main (argc=3, argv=0x5578cd6a75e8) at doveadm.c:383
> 383		    !doveadm_try_run(cmd_name, argc, (const char **)argv) &&
> 
> 
> dovecot -n:
> ---------------------
> # 2.2.32 (dfbe293d4): /etc/dovecot/dovecot.conf
> # Pigeonhole version 0.4.20 (7cd71ba)
> # OS: Linux 3.10.0-693.2.2.el7.x86_64 x86_64 Red Hat Enterprise Linux 
> Server release 7.4 (Maipo)
> auth_master_user_separator = *
> auth_username_format = %Ln
> auth_verbose = yes
> disable_plaintext_auth = no
> doveadm_password =  # hidden, use -P to show it
> first_valid_uid = 30000
> imapc_features = rfc822.size fetch-headers
> imapc_host = some-imap-server
> imapc_user = %u
> last_valid_uid = 30000
> mail_location = mdbox:~/mdbox
> mail_plugins = " zlib acl notify replication"
> mail_prefetch_count = 20
> 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 index ihave duplicate mime foreverypart 
> extracttext spamtest spamtestplus vnd.dovecot.duplicate
> mbox_write_locks = fcntl
> namespace inbox {
>    inbox = yes
>    location =
>    mailbox Drafts {
>      special_use = \Drafts
>    }
>    mailbox Junk {
>      special_use = \Junk
>    }
>    mailbox Sent {
>      special_use = \Sent
>    }
>    mailbox "Sent Messages" {
>      special_use = \Sent
>    }
>    mailbox Trash {
>      special_use = \Trash
>    }
>    prefix =
> }
> passdb {
>    args = /master-file
>    driver = passwd-file
>    master = yes
> }
> passdb {
>    args = /etc/dovecot/conf.d/dovecot-ldap.conf.ext
>    driver = ldap
> }
> plugin {
>    mail_replica = tcp:server2:1109
>    sieve = ~/.dovecot.sieve
>    sieve_before = /some-path/global.sieve
>    sieve_dir = ~/sieve
>    sieve_extensions = +spamtest +spamtestplus +vnd.dovecot.duplicate
>    sieve_spamtest_max_value = 100
>    sieve_spamtest_status_header = X-PerlMx-Spam: Gauge=[[:alnum:]]+, 
> Probability=(-?[[:digit:]]+)%.*
>    sieve_spamtest_status_type = score
>    zlib_save = gz
>    zlib_save_level = 6
> }
> protocols = imap lmtp sieve
> replication_max_conns = 30
> service aggregator {
>    fifo_listener replication-notify-fifo {
>      user = vmail
>    }
>    unix_listener replication-notify {
>      user = vmail
>    }
> }
> service doveadm {
>    inet_listener {
>      port = 1109
>    }
> }
> service imap-login {
>    inet_listener imap {
>      port = 143
>    }
>    inet_listener imaps {
>      port = 993
>      ssl = yes
>    }
> }
> service lmtp {
>    inet_listener lmtp {
>      port = 24
>    }
> }
> service replicator {
>    process_min_avail = 1
>    unix_listener replicator-doveadm {
>      group = vmail
>      mode = 0660
>      user = vmail
>    }
> }
> userdb {
>    args = /etc/dovecot/conf.d/dovecot-ldap.conf.ext
>    driver = ldap
> }
> protocol lmtp {
>    mail_plugins = " zlib acl notify replication sieve"
> }
> protocol lda {
>    mail_plugins = " zlib acl notify replication sieve"
> }