This is fixed in 2.2.27 with ddc96f7 lib-storage: Fixed error handling in list=children checking
Aki
On 23.01.2017 12:00, Aki Tuomi wrote:
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:
On 19.01.2017 15:56, Thorsten Hater 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 < 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