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TF2 Lag/crash bots targeting community servers


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halls
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Join Date: Oct 2019
Old 04-05-2020 , 19:49   TF2 Lag/crash bots targeting community servers
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Hello everyone, has anyone found a fix for this that would be willing to share said fix with the community? Many thanks!
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Fearts
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Old 04-06-2020 , 01:44   Re: TF2 Lag/crash bots targeting community servers
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I'm also interested if anyone has information or a fix for this issue.
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nosoop
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Old 04-06-2020 , 16:52   Re: TF2 Lag/crash bots targeting community servers
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The hotfix is available here: https://cdn.discordapp.com/attachmen..._3-20-2020.zip

Credit for the above goes to @backwards.

If you have Source Scramble, the attached gamedata below can be used with the patch manager instead. Add the following to configs/sourcescramble_manager.cfg:

Code:
"tf2.hotfix_fragment_uncompress" "CNetChan::UncompressFragments()::DisableFunction"
Attached Files
File Type: txt tf2.hotfix_fragment_uncompress.txt (592 Bytes, 118 views)
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Last edited by nosoop; 04-07-2020 at 20:05. Reason: I always forget how the config is formatted oop
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lugui
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Old 04-07-2020 , 07:24   Re: TF2 Lag/crash bots targeting community servers
Reply With Quote #4

I don't think it is a good idea to let it hosted on discord, it can be deleted any moment
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File Type: zip tf2_Exploit_Fix_3-20-2020.zip (5.2 KB, 113 views)
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MAGNAT2645
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Join Date: Nov 2015
Location: AlliedMods.net
Old 04-07-2020 , 08:35   Re: TF2 Lag/crash bots targeting community servers
Reply With Quote #5

Quote:
Originally Posted by nosoop View Post
The hotfix is available here: https://cdn.discordapp.com/attachmen..._3-20-2020.zip

Credit for the above goes to @backwards.

If you have Source Scramble, the attached gamedata below can be used with the patch manager instead. Add the following to configs/sourcescramble_manager.cfg:

Code:
"tf2.hotfix_fragment_uncompress.txt" "CNetChan::UncompressFragments()::DisableFunction"
So, if i have SourceScrambler, i don't need to install tf2_Exploit_Fix_3-20-2020.zip?
Just install attached tf2.hotfix_fragment_uncompress.txt and put it into config?

EDIT:
It throws error
Code:
L 04/07/2020 - 15:49:56: [SM] Error parsing gameconfig file "/home/tf2server/serverfiles/tf/addons/sourcemod/gamedata/tf2.hotfix_fragment_uncompress.txt.txt":
L 04/07/2020 - 15:49:56: [SM] Error 1 on line 0, col 0: Stream failed to open
L 04/07/2020 - 15:49:56: [SM] Exception reported: Unable to open tf2.hotfix_fragment_uncompress.txt: File could not be opened: No such file or directory
L 04/07/2020 - 15:49:56: [SM] Blaming: sourcescramble_manager.smx
L 04/07/2020 - 15:49:56: [SM] Call stack trace:
L 04/07/2020 - 15:49:56: [SM]   [0] LoadGameConfigFile
L 04/07/2020 - 15:49:56: [SM]   [1] Line 90, sourcescramble_manager.sp::GetGameConfigFromCache
L 04/07/2020 - 15:49:56: [SM]   [2] Line 70, sourcescramble_manager.sp::PatchMemConfigEntry
L 04/07/2020 - 15:49:56: [SM]   [4] SMCParser.ParseFile
L 04/07/2020 - 15:49:56: [SM]   [5] Line 33, sourcescramble_manager.sp::OnPluginStart
I guess i don't need to put gamedata .txt extension to sourcescramble_manager.cfg?
Yeah, it seems to work fine now.
Code:
[sourcescramble] Enabled patch "CNetChan::UncompressFragments()::DisableFunction" from "tf2.hotfix_fragment_uncompress" at address: 0xF67D5511
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Last edited by MAGNAT2645; 04-07-2020 at 11:28.
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nosoop
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Join Date: Aug 2014
Old 04-07-2020 , 20:04   Re: TF2 Lag/crash bots targeting community servers
Reply With Quote #6

Quote:
Originally Posted by MAGNAT2645 View Post
So, if i have SourceScrambler, i don't need to install tf2_Exploit_Fix_3-20-2020.zip?
Just install attached tf2.hotfix_fragment_uncompress.txt and put it into config?

I guess i don't need to put gamedata .txt extension to sourcescramble_manager.cfg?
oops my bad, gonna fix that

Both do the exact same thing (returning out of the subroutine); you only need one of them.

A proper fix to the underlying problem function is possible, but would require a more invasive patch to insert the proper checks.
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nosoop
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Old 04-07-2020 , 21:25   Re: TF2 Lag/crash bots targeting community servers
Reply With Quote #7

Today's update supposedly fixes the bug. It also causes bootloops if the Source Scramble patch is installed (doesn't account for the different stack allocation size since it doesn't use byte signatures), go figure.

Apologies if you're affected by a bootloop.
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Last edited by nosoop; 04-07-2020 at 22:02.
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