[Dovecot] dovecot 1.1beta11 auth problems (PATCH!)

[Moritz Mertinkat]

Hi once again,

I've just had a closer look to the problem using gdb:

Program received signal SIGSEGV, Segmentation fault.
0x08055703 in auth_request_set_userdb_field (request=0x80a6008, name=0x0,
value=0x80a60d0 "postmaster at mydomain.de") at auth-request.c:1154
1154            if (strcmp(name, "uid") == 0) {

The problem occurs in auth_request_set_userdb_field which is called from
userdb-vpopmail.c on line 125 with parameter name = NULL.
Attached is a small patch that handles the NULL case for the name parameter
inside the auth_request_set_userdb_field function.

It works for me (no problems so far), but I think someone else should have
a look at it :=)

=> Patch is against dovecot 1.1 beta11.

Regards,
Moritz


Moritz Mertinkat schrieb:
> Hi everybody,
> 
> I've problems running Dovecot 1.1beta11 using vpopmail userdb/passdb
> (Dovecot 1.08 however works just fine).
> 
> It looks like as if the auth process gets killed somehow...
> Any ideas what might be wrong?
> 
> Dec 12 20:02:32 vs247165 dovecot: Dovecot v1.1.beta11 starting up
> Dec 12 20:02:32 vs247165 dovecot: Generating Diffie-Hellman parameters
> for the first time. This may take a while..
> Dec 12 20:03:06 vs247165 dovecot: imap-login: Waiting for SSL parameter
> file ssl-parameters.dat
> Dec 12 20:03:46 vs247165 dovecot: ssl-build-param: SSL parameters
> regeneration completed
> Dec 12 20:03:47 vs247165 dovecot: imap-login: Disconnected: rip=a.a.a.a,
> lip=b.b.b.b, TLS handshaking
> Dec 12 20:04:03 vs247165 dovecot: child 32051 (auth) killed with signal 11
> Dec 12 20:04:03 vs247165 dovecot: imap-login: Internal login failure:
> user=<postmaster at mydomain.de>, method=PLAIN, rip=a.a.a.a, lip=b.b.b.b, TLS
> Dec 12 20:04:04 vs247165 dovecot: imap-login: Internal login failure:
> user=<postmaster at mydomain.de>, method=PLAIN, rip=a.a.a.a, lip=b.b.b.b, TLS
> Dec 12 20:04:04 vs247165 dovecot: child 1503 (auth) killed with signal 11
> 
> 
> # /usr/local/dovecot-1.1/sbin/dovecot -n
> 
> protocols: imap
> login_dir: /usr/local/dovecot-1.1/var/run/dovecot/login
> login_executable: /usr/local/dovecot-1.1/libexec/dovecot/imap-login
> mail_location: maildir:/var/lib/vpopmail/domains/%d/%n/Maildir
> auth default:
>   passdb:
>     driver: vpopmail
>   userdb:
>     driver: vpopmail
> 
> 
> Regards,
> Moritz
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