Description

A player come in my server and spam some luckperm command for kick all player

Reproduction Steps

Spaming command like

• lpx
• luckpermsvelocity
• luckpermsbungee

Expected Behaviour

Fix that...

Server Details

Paper 1.20.1 v196

LuckPerms Version

5.4.84

Logs and Configs

This error spam the tchat and all player was kick.

[18:34:39] [Server thread/ERROR]: Failed to handle packet net.minecraft.network.protocol.game.PacketPlayInWindowClick@15d64a2f, suppressing error
net.minecraft.ReportedException: Container click
at net.minecraft.world.inventory.AbstractContainerMenu.clicked(AbstractContainerMenu.java:397) ~[?:?]
at net.minecraft.server.network.ServerGamePacketListenerImpl.handleContainerClick(ServerGamePacketListenerImpl.java:3245) ~[?:?]
at net.minecraft.network.protocol.game.ServerboundContainerClickPacket.handle(ServerboundContainerClickPacket.java:58) ~[?:?]
at net.minecraft.network.protocol.game.ServerboundContainerClickPacket.handle(ServerboundContainerClickPacket.java:23) ~[?:?]
at net.minecraft.network.protocol.PacketUtils.lambda$ensureRunningOnSameThread$0(PacketUtils.java:51) ~[?:?]
at net.minecraft.server.TickTask.run(TickTask.java:18) ~[paper-1.20.1.jar:git-Paper-196]
at net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:153) ~[?:?]
at net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:24) ~[?:?]
at net.minecraft.server.MinecraftServer.doRunTask(MinecraftServer.java:1338) ~[paper-1.20.1.jar:git-Paper-196]
at net.minecraft.server.MinecraftServer.d(MinecraftServer.java:197) ~[paper-1.20.1.jar:git-Paper-196]
at net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:126) ~[?:?]
at net.minecraft.server.MinecraftServer.pollTaskInternal(MinecraftServer.java:1315) ~[paper-1.20.1.jar:git-Paper-196]
at net.minecraft.server.MinecraftServer.pollTask(MinecraftServer.java:1308) ~[paper-1.20.1.jar:git-Paper-196]
at net.minecraft.util.thread.BlockableEventLoop.managedBlock(BlockableEventLoop.java:136) ~[?:?]
at net.minecraft.server.MinecraftServer.waitUntilNextTick(MinecraftServer.java:1286) ~[paper-1.20.1.jar:git-Paper-196]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1174) ~[paper-1.20.1.jar:git-Paper-196]
at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:317) ~[paper-1.20.1.jar:git-Paper-196]
at java.lang.Thread.run(Thread.java:833) ~[?:?]
Caused by: java.lang.ArrayIndexOutOfBoundsException: Index -1 out of bounds for length 36
at java.util.Arrays$ArrayList.get(Arrays.java:4165) ~[?:?]
at net.minecraft.core.NonNullList.get(NonNullList.java:44) ~[paper-1.20.1.jar:git-Paper-196]
at net.minecraft.world.entity.player.Inventory.getItem(Inventory.java:621) ~[?:?]
at net.minecraft.world.inventory.AbstractContainerMenu.doClick(AbstractContainerMenu.java:604) ~[?:?]
at net.minecraft.world.inventory.AbstractContainerMenu.clicked(AbstractContainerMenu.java:382) ~[?:?]
... 17 more

Extra Details

No response

The stack trace attached above has no mention of LuckPerms. Additionally, you should consider updating LuckPerms as you're running an outdated version. Downloads link here. If you encounter any LuckPerms related errors in regards to this issue, be sure to provide a pastebin of your latest.log.

That is a server exploit that is fixed in newer versions of Paper, so the solution to that is to update the server.

If you have an issue with LuckPerms itself please open a new issue or head over to our discord server.