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IDProjectCategoryView StatusDate SubmittedLast Update
0006576unrealircdpublic2025-09-13 15:532025-09-14 01:12
Reportercrazycat Assigned Tosyzop  
PrioritynormalSeveritymajorReproducibilityrandom
Status feedbackResolutionopen 
Product Version6.2.0 
Summary0006576: antimixedutf8 sureact
DescriptionSince I upgraded to 6.2.0, some users are punished by the antimixedutf8 module.

I've change the action to warn, so I hope I'll be able to give more elements soon.
Tagsmixed, utf8
3rd party modules

Activities

syzop

2025-09-13 16:40

administrator   ~0023493

What scores do your users get? You can check in logs, it looks something like:
antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client .... hit score XX - taking action

And what score did you configure to act upon in the config?

syzop

2025-09-13 18:51

administrator   ~0023494

Last edited: 2025-09-13 18:52

 Oh yeah I see what you mean, the éá etc stuff is in a different unicode block, so for languages like French there are lots of block transitions leading to higher antimixedutf8 scores. We suggest 5-10 and default to 8 but that is quite reachable in ordinary text. Eg with 8 you only need 4 accent characters because you are transitioning back and forth. Pretty dumb oversight.

In the old version of the module we also didn't see it as one big block but in that version it was a transition to an "undefined" code page (and back) so didn't count.

syzop

2025-09-13 18:56

administrator   ~0023495

This is now fixed in https://github.com/unrealircd/unrealircd/commit/64eab2c6aec450171766c8994cda6473e6787400

commit 64eab2c6aec450171766c8994cda6473e6787400 (HEAD -> unreal60_dev, origin/unreal60_dev, origin/HEAD)
Author: Bram Matthys <[email protected]>
Date: Sat Sep 13 18:52:46 2025 +0200

    antimixedutf8: fix extended latin, like éí accents leading to a high score.
    The 4 unicode blocks are now treated as one big Latin block
    Latin-1 Supplement, Latin Extended-A, Latin Extended-B ==mapped=to==> Basic Latin
    
    Reported by CrazyCat in https://bugs.unrealircd.org/view.php?id=6576

syzop

2025-09-13 18:57

administrator   ~0023496

If you want to hot patch without restart you can do something like this:

cd /home/whatever/unrealircd-6.2.0.1
wget -O patch https://github.com/unrealircd/unrealircd/commit/64eab2c6aec450171766c8994cda6473e6787400.patch
patch -p1 <patch
make && make install
./unrealircd rehash

crazycat

2025-09-14 00:57

reporter   ~0023497

Quick answer :)
The score is set to 10.

Patch applied, servers rehashed, I'll tell you if there are warnings or not.

crazycat

2025-09-14 01:12

reporter   ~0023498

Logs are:
[Sat Sep 13 00:20:01 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 10 -- taking action
[Sat Sep 13 07:28:01 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 10 -- taking action
[Sat Sep 13 11:45:59 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 10 -- taking action
[Sat Sep 13 14:05:01 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 10 -- taking action
[Sat Sep 13 15:34:02 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 10 -- taking action
[Sat Sep 13 15:55:01 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 15 -- taking action
[Sat Sep 13 16:40:03 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 14 -- taking action
[Sat Sep 13 17:36:01 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 12 -- taking action
[Sat Sep 13 18:02:01 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 14 -- taking action
[Sat Sep 13 20:53:55 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 10 -- taking action
[Sat Sep 13 21:09:59 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 12 -- taking action
[Sat Sep 13 21:16:42 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 10 -- taking action
[Sat Sep 13 21:26:47 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 10 -- taking action
[Sat Sep 13 21:30:44 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 10 -- taking action
[Sat Sep 13 21:31:24 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 10 -- taking action
[Sat Sep 13 21:33:52 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 32 -- taking action
[Sat Sep 13 21:35:37 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 11 -- taking action
[Sat Sep 13 21:42:14 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 12 -- taking action
[Sat Sep 13 21:47:35 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 10 -- taking action
[Sat Sep 13 21:49:16 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 22 -- taking action
[Sat Sep 13 21:57:18 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 84 -- taking action
[Sat Sep 13 22:03:35 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 20 -- taking action
[Sat Sep 13 22:04:45 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 18 -- taking action
[Sat Sep 13 22:05:07 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 14 -- taking action
[Sat Sep 13 22:07:08 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 10 -- taking action
[Sat Sep 13 22:08:41 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 10 -- taking action
[Sat Sep 13 22:08:53 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 10 -- taking action
[Sat Sep 13 22:13:27 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 10 -- taking action
[Sat Sep 13 22:19:17 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 12 -- taking action
[Sat Sep 13 22:27:08 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 22 -- taking action
[Sat Sep 13 22:58:21 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 10 -- taking action
[Sat Sep 13 23:04:16 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 14 -- taking action
[Sat Sep 13 23:31:40 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 11 -- taking action
[Sat Sep 13 23:41:36 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 10 -- taking action
[Sat Sep 13 23:47:39 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 10 -- taking action
[Sat Sep 13 23:48:33 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 11 -- taking action
[Sat Sep 13 23:52:10 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 12 -- taking action
[Sun Sep 14 00:08:29 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 12 -- taking action
[Sun Sep 14 00:15:02 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 10 -- taking action
[Sun Sep 14 00:25:40 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 12 -- taking action
[Sun Sep 14 00:29:04 2025] irc.zeolia.chat antimixedutf8.ANTIMIXEDUTF8_HIT info: [antimixedutf8] Client [email protected] hit score 12 -- taking action

Update of the server on Sat Sep 13 00:05:00, patch applied tonight (Sun Sep 14 00:53:00)

Issue History

Date Modified Username Field Change
2025-09-13 15:53 crazycat New Issue
2025-09-13 15:53 crazycat Tag Attached: mixed
2025-09-13 15:53 crazycat Tag Attached: utf8
2025-09-13 16:40 syzop Note Added: 0023493
2025-09-13 16:40 syzop Assigned To => syzop
2025-09-13 16:40 syzop Status new => feedback
2025-09-13 18:51 syzop Note Added: 0023494
2025-09-13 18:51 syzop Note Edited: 0023494
2025-09-13 18:52 syzop Note Edited: 0023494
2025-09-13 18:56 syzop Note Added: 0023495
2025-09-13 18:57 syzop Note Added: 0023496
2025-09-14 00:57 crazycat Note Added: 0023497
2025-09-14 01:12 crazycat Note Added: 0023498