Thank you for your report.
Aki
On 23.01.2017 11:56, Thorsten Hater wrote:
OK, I found the problem in my config. If I use an default namespace with an empty name, instead of "inbox" it works as expected. Here the log for this case
Starting program: /usr/local/libexec/dovecot/imap -u **** imap(****): Debug: auth input: **** home=**** uid=48 gid=48 quota_rule=*:bytes=1000M imap(****): Debug: Added userdb setting: plugin/quota_rule=*:bytes=1000M Debug: Effective uid=48, gid=48, home=**** Debug: Namespace : type=private, prefix=INBOX., sep=., inbox=yes, hidden=no, list=children, subscriptions=yes location=maildir:~/Maildir Debug: maildir++: root=****/Maildir, index=, indexpvt=, control=, inbox=****/Maildir, alt= Debug: Namespace inbox: type=private, prefix=, sep=, inbox=no, hidden=no, list=yes, subscriptions=yes location=maildir:~/Maildir Debug: maildir++: root=****/Maildir, index=, indexpvt=, control=, inbox=, alt=
- PREAUTH [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS THREAD=ORDEREDSUBJECT MULTIAPPEND URL-PARTIAL CATENATE UNSELECT CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS BINARY MOVE] Logged in as **** x LIST "" ""
- LIST (\Noselect) "." "" x OK List completed (0.000 + 0.000 secs).
On Mon, Jan 23, 2017 at 10:46 AM, Aki Tuomi aki.tuomi@dovecot.fi wrote:
I'll try reproduce this issue, but can you, in the mean time, run this with mail_debug=yes and provide logs?
Aki
Hi,
I did added the default location and stripped down my config to a very basic level, dropping all plugins and database queries, see below. The segfault still appears in the same location. As I have build from source, I wonder whether you can reproduce the
Thorsten
$ doveconf -n # 2.2.26.0 (23d1de6): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.4.16 (1dc4c73) # OS: Linux 3.18.16-intel-vm-64bit x86_64 Debian 8.6 auth_debug = yes auth_debug_passwords = yes auth_socket_path = /usr/local/var/run/dovecot/auth-userdb auth_verbose = yes base_dir = /usr/local/var/run/dovecot/ default_internal_user = pop first_valid_uid = 48 import_environment = TZ DEBUG=1 last_valid_uid = 48 login_greeting = Dovecot ready. login_trusted_networks = **** mail_debug = yes mail_gid = pop mail_location = maildir:~/Maildir mail_plugin_dir = /usr/local/lib/dovecot/ mail_uid = pop 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 namespace inbox { inbox = yes list = children location = maildir:~/Maildir prefix = INBOX. separator = . subscriptions = yes type = private } passdb { args = nopassword=yes driver = static } protocols = imap pop3 lmtp imap pop3 ssl = no userdb { args = home=**** uid=pop gid=pop quota_rule=*:bytes=1000M driver = static } verbose_proctitle = yes protocol lda { auth_socket_path = /usr/local/var/run/dovecot/auth-userdb }
On Mon, Jan 23, 2017 at 10:01 AM, Thorsten Hater <
On 23.01.2017 11:45, Thorsten Hater wrote: problem? thorsten.hater@gmail.com>
wrote:
Hi,
thanks for picking this up. The location is pulled from the database, but is uniform for all users, so I could set it to maildir:~/Maildir globally. Assuming ~ is expanded later on with userdb data. So, no, there is no special intention behind this.
Thorsten
On Mon, Jan 23, 2017 at 9:37 AM, Aki Tuomi aki.tuomi@dovecot.fi wrote:
The Problem arises due to a NULL deref in mail_namespaces.c line 601. Backtrace below
x LIST "" ""
Program received signal SIGSEGV, Segmentation fault. mail_namespaces_get_root_sep (namespaces=0x0) at mail-namespace.c:601 601 while ((namespaces->flags & NAMESPACE_FLAG_LIST_PREFIX) == 0) (gdb) bt #0 mail_namespaces_get_root_sep (namespaces=0x0) at mail-namespace.c:601 #1 0x000000000041164c in cmd_list_ref_root (ref=0x65b060 "", client=0x65a590) at cmd-list.c:324 #2 cmd_list_full (cmd=0x65aee0, lsub=<optimized out>) at cmd-list.c:461 #3 0x0000000000419825 in command_exec (cmd=cmd@entry=0x65aee0) at imap-commands.c:181 #4 0x0000000000417de2 in client_command_input (cmd=cmd@entry =0x65aee0) at imap-client.c:988 #5 0x0000000000417e70 in client_command_input (cmd=0x65aee0) at imap-client.c:1048 #6 0x00000000004181e5 in client_handle_next_command (remove_io_r=<synthetic pointer>, client=0x65a590) at imap-client.c:1090 #7 client_handle_input (client=0x65a590) at imap-client.c:1102 #8 0x0000000000418692 in client_input (client=0x65a590) at imap-client.c:1149 #9 0x00007ffff76297ac in io_loop_call_io (io=0x652aa0) at ioloop.c:589 #10 0x00007ffff762ab4a in io_loop_handler_run_internal (ioloop=ioloop@entry=0x63e7f0) at ioloop-epoll.c:222 #11 0x00007ffff7629835 in io_loop_handler_run (ioloop=ioloop@entry =0x63e7f0) at ioloop.c:637 #12 0x00007ffff76299d8 in io_loop_run (ioloop=0x63e7f0) at ioloop.c:613 #13 0x00007ffff75b9823 in master_service_run (service=0x63e690, callback=callback@entry=0x423d40
) at master-service.c:641 #14 0x000000000040c567 in main (argc=3, argv=0x63e390) at main.c:460 On Thu, Jan 19, 2017 at 1:05 PM, Thorsten Hater <
On 19.01.2017 15:56, Thorsten Hater wrote: thorsten.hater@gmail.com>
wrote:
> Dear all, > > I experience SegFaults in the imap binary on a LIST "" "" command, > as sent by Claws mail. Using LIST "" "INBOX" or similar is fine. > Here is an example telnet session > > $ telnet 127.0.0.1 143 > Trying 127.0.0.1... > Connected to 127.0.0.1. > Escape character is '^]'. > * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE > AUTH=PLAIN] Dovecot ready. > 01 LOGIN **** **** > 01 OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE > IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS THREAD=ORDEREDSUBJECT > MULTIAPPEND URL-PARTIAL CATENATE UNSELECT CHILDREN NAMESPACE UIDPLUS > LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC ESEARCH ESORT SEARCHRES WITHIN > CONTEXT=SEARCH LIST-STATUS BINARY MOVE SPECIAL-USE QUOTA] Logged in > 02 LIST "" "" > Connection closed by foreign host. > > In the log file > > dovecot[8375]: imap(***): Fatal: master: service(imap): child 15803 killed > with signal 11 (core dumps disabled) > > Please find the config below. > > Best regards, > Thorsten > > $ doveconf -n > # 2.2.26.0 (23d1de6): /etc/dovecot/dovecot.conf > # Pigeonhole version 0.4.16 (1dc4c73) > # OS: Linux 3.16.0-4-amd64 x86_64 Debian 8.6 > auth_debug = yes > auth_debug_passwords = yes > auth_socket_path = /var/run/dovecot/auth-userdb > auth_verbose = yes > base_dir = /var/run/dovecot/ > default_internal_user = pop > first_valid_uid = 48 > import_environment = TZ DEBUG=1 > last_valid_uid = 48 > login_trusted_networks = **** > mail_debug = yes > mail_gid = pop > mail_plugins = " mail_log notify zlib quota" > mail_uid = pop > 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 > namespace inbox { > inbox = yes > list = children > location = > mailbox Drafts { > auto = no > special_use = \Drafts > } > mailbox Sent { > auto = no > special_use = \Sent > } > mailbox Trash { > auto = no > autoexpunge = 30 days > special_use = \Trash > } > mailbox drafts { > auto = no > special_use = \Drafts > } > mailbox sent { > auto = no > special_use = \Sent > } > mailbox spamverdacht { > auto = no > autoexpunge = 30 days > special_use = \Junk > } > mailbox trash { > auto = no > autoexpunge = 30 days > special_use = \Trash > } > mailbox virenverdacht { > auto = no > autoexpunge = 30 days > special_use = \Junk > } > prefix = INBOX. > separator = . > subscriptions = yes > type = private > } > passdb { > args = nopassword=y > driver = static > } > plugin { > last_login_dict = file:~/lastlogin > mail_log_events = delete undelete expunge copy mailbox_delete > mailbox_rename > mail_log_fields = uid box msgid size > quota = maildir:User quota > quota_warning = storage=80%% 80 %u %{userdb:quota_bytes} > quota_warning2 = storage=90%% 90 %u %{userdb:quota_bytes} > quota_warning3 = storage=95%% 95 %u %{userdb:quota_bytes} > sieve = ldap:/etc/dovecot/pigeonhole-ldap.conf > sieve_dir = ~/sieve > sieve_plugins = sieve_storage_ldap > zlib_save = gz > zlib_save_level = 6 > } > service imap { > executable = imap postlogin > } > service pop3 { > executable = pop3 postlogin > } > service postlogin { > executable = script-login -d rawlog > } > service quota-warning { > executable = script /bin/quota-warning.sh > } > ssl = no > userdb { > args = /etc/dovecot/userdb-ldap.conf > driver = ldap > result_failure = return-fail > result_internalfail = return-fail > result_success = continue-ok > } > userdb { > default_fields = quota_bytes=42M > driver = bdb_quota > override_fields = quota_rule=*:bytes=%{userdb:quota_bytes} > result_failure = return-fail > result_internalfail = return-fail > result_success = continue-ok > } > verbose_proctitle = yes > protocol lda { > auth_socket_path = /var/run/dovecot/auth-userdb > mail_plugin_dir = /lib/dovecot/modules > mail_plugins = " mail_log notify zlib quota sieve" > } > protocol imap { > mail_plugins = " mail_log notify zlib quota imap_xauth last_login > imap_quota" > } > protocol pop3 { > mail_plugins = " mail_log notify zlib quota last_login" > } > Hi!
We are looking into this crash.
Are you intentionally setting inbox namespace location to empty?
Aki