dovecot - Sep 2012 - Found bug on doing IMAP search with UTF8 chars

Hi!
 
I'm using Roundcube 0.9git as mail frontend and have installed Dovecot 2.1.7
on Debian Squeeze. When searching for mail via Roundcube and the keyword
contains "special" chars (like german umlauts), then Dovecot seems to
die when the folder does not contain a message which contains this keyword, i.e.
 
folder contains message /w subject "Dies ist eine Nachricht" =>
search for "Nachricht" => Roundcube shows that messages
folder contains message /w subject "Dies ist eine Nachricht" =>
search for "Nachricht123" => Roundcube shows error that no messages
where found
folder contains message /w subject "Aufl?sung der Frage" => search
for "L?sung" => Roundcube shows that messages
folder contains message /w subject "Aufl?sung der Frage" => search
for "L?sung123" => Roundcube shows error saying: "Connection
to storage server failed"
 
Looking into /var/log/mail.log shows:
 
Sep  5 11:43:32 mail dovecot: imap(abc at def.de): Panic: search key not utf8:
L.sung123 dsr_sub_allocation
Sep  5 11:43:32 mail dovecot: imap(abc at def.de): Error: Raw backtrace:
/usr/lib/dovecot/libdovecot.so.0(+0x4478a) [0
x7f065ba8e78a] -> /usr/lib/dovecot/libdovecot.so.0(+0x447d6) [0x7f065ba8e7d6]
-> /usr/lib/dovecot/libdovecot.so.0(i_error+0) [0x7f065ba655ef
] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x9a3cb) [0x7f065bd6f3cb]
-> /usr/lib/dovecot/libdovecot-storage.so.0(+0x9a8aa) [0x7f065bd6f8
aa] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x78641) [0x7f065bd4d641]
-> /usr/lib/dovecot/libdovecot-storage.so.0(mail_search_args_fore
ach+0x3c) [0x7f065bd4d7bc] ->
/usr/lib/dovecot/libdovecot.so.0(message_parse_header+0x29) [0x7f065ba78eb9]
-> /usr/lib/dovecot/libdovecot-st
orage.so.0(+0x9a0cf) [0x7f065bd6f0cf] ->
/usr/lib/dovecot/libdovecot-storage.so.0(+0x9b160) [0x7f065bd70160] ->
/usr/lib/dovecot/libdovecot-
storage.so.0(index_storage_search_next_nonblock+0x48) [0x7f065bd706e8] ->
/usr/lib/dovecot/libdovecot-storage.so.0(mailbox_search_next_nonbl
ock+0x27) [0x7f065bd51a07] -> dovecot/imap() [0x41668f] ->
dovecot/imap(imap_search_start+0xd8) [0x416ad8] ->
dovecot/imap(cmd_sort+0x1e6) [
0x40e636] -> dovecot/imap(command_exec+0x3d) [0x41157d] -> dovecot/imap()
[0x4104fe] -> dovecot/imap(client_handle_input+0x135) [0x410805]
-
> dovecot/imap(client_input+0x5f) [0x41112f] ->
/usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x36) [0x7f065ba9a926] ->
/usr/lib/dovecot/
libdovecot.so.0(io_loop_handler_run+0x9f) [0x7f065ba9b95f] ->
/usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x28) [0x7f065ba9a8c8] ->
/usr/li
b/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f065ba87053] ->
dovecot/imap(main+0x2a4) [0x419354] -> /lib/libc.so.6(__libc_start_ma
in+0xfd) [0x7f065b706c8d] -> dovecot/imap() [0x408e79]

 
Huh? This error only occurs when I search for a keyword, that contains probably
non-ASCII-US chars (like umlauts, euro sign EUR ...) and no message was found in
that folder. When there is any message which contains this keyword, then
Roundcube is fine and there error above cannot be found in mail.log. Can anybody
confirm this behaviour?
 
Regards

On 7.9.2012, at 10.30, Weinreich, Nico wrote:
> I'm using Roundcube 0.9git as mail frontend and have installed Dovecot
2.1.7 on Debian Squeeze. When searching for mail via Roundcube and the keyword
contains "special" chars (like german umlauts), then Dovecot seems to
die when the folder does not contain a message which contains this keyword, i.e.
> 
> Sep  5 11:43:32 mail dovecot: imap(abc at def.de): Panic: search key not
utf8: L.sung123 dsr_sub_allocation
This crash was fixed in v2.1.8 I think.
> Huh? This error only occurs when I search for a keyword, that contains
probably non-ASCII-US chars (like umlauts, euro sign EUR ...) and no message was
found in that folder. When there is any message which contains this keyword,
then Roundcube is fine and there error above cannot be found in mail.log. Can
anybody confirm this behaviour?
The error is that Roundcube doesn't send the string to Dovecot as UTF8 (or
alternatively specify the correct charset). Even with the crashfix the search
won't work.