diff --git a/patches/server/0050-Fix-packet-related-lag-exploits.patch b/patches/server/0050-Fix-packet-related-lag-exploits.patch new file mode 100644 index 0000000..0ecd138 --- /dev/null +++ b/patches/server/0050-Fix-packet-related-lag-exploits.patch @@ -0,0 +1,46 @@ +From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 +From: Luna +Date: Tue, 4 Jul 2023 18:49:34 -0300 +Subject: [PATCH] Fix packet-related lag exploits + + +diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java +index fbc247d364d3cdee94b04b1108c99d2909b1773a..17faa1416b1e4145a81a0fff5726c6672abf008b 100644 +--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java ++++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java +@@ -965,7 +965,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic + this.player.sendSystemMessage(Component.translatable("advMode.notEnabled")); + } else if (!this.player.canUseGameMasterBlocks() && (!this.player.isCreative() || !this.player.getBukkitEntity().hasPermission("minecraft.commandblock"))) { // Paper - command block permission + this.player.sendSystemMessage(Component.translatable("advMode.notAllowed")); +- } else { ++ } else if (this.player.level().isLoadedAndInBounds(packet.getPos())) { // Scissors + BaseCommandBlock commandblocklistenerabstract = null; + CommandBlockEntity tileentitycommand = null; + BlockPos blockposition = packet.getPos(); +@@ -1125,7 +1125,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic + @Override + public void handleSetStructureBlock(ServerboundSetStructureBlockPacket packet) { + PacketUtils.ensureRunningOnSameThread(packet, this, this.player.serverLevel()); +- if (this.player.canUseGameMasterBlocks()) { ++ if (this.player.canUseGameMasterBlocks() && this.player.level().isLoadedAndInBounds(packet.getPos())) { // Scissors + BlockPos blockposition = packet.getPos(); + BlockState iblockdata = this.player.level().getBlockState(blockposition); + BlockEntity tileentity = this.player.level().getBlockEntity(blockposition); +@@ -1183,7 +1183,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic + @Override + public void handleSetJigsawBlock(ServerboundSetJigsawBlockPacket packet) { + PacketUtils.ensureRunningOnSameThread(packet, this, this.player.serverLevel()); +- if (this.player.canUseGameMasterBlocks()) { ++ if (this.player.canUseGameMasterBlocks() && this.player.level().isLoadedAndInBounds(packet.getPos())) { // Scissors + BlockPos blockposition = packet.getPos(); + BlockState iblockdata = this.player.level().getBlockState(blockposition); + BlockEntity tileentity = this.player.level().getBlockEntity(blockposition); +@@ -1206,7 +1206,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic + @Override + public void handleJigsawGenerate(ServerboundJigsawGeneratePacket packet) { + PacketUtils.ensureRunningOnSameThread(packet, this, this.player.serverLevel()); +- if (this.player.canUseGameMasterBlocks()) { ++ if (this.player.canUseGameMasterBlocks() && this.player.level().isLoadedAndInBounds(packet.getPos())) { // Scissors + BlockPos blockposition = packet.getPos(); + BlockEntity tileentity = this.player.level().getBlockEntity(blockposition); +