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Defensively copy chunk data in upgradeChunkTag

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The data provided is always from the regionfile thread, which
does not copy the data out. So if two separate calls need
the data, then there's going to be a problem.
This commit is contained in:
Spottedleaf 2021-12-27 04:11:21 -08:00
parent 692283dbe2
commit 22be4d5c60
3 changed files with 17 additions and 9 deletions
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14
patches/server/0258-Asynchronous-chunk-IO-and-loading.patch
View file

@ -3170,7 +3170,7 @@ index 1729af83b979e35a585c8d049b14dc23ddf23803..89de1589833dcce8028fd402aea8a3e5
CompoundTag nbttagcompound3 = new CompoundTag();
Iterator iterator1 = chunk.getHeightmaps().iterator();
diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java
index 2d1c8d5cf8ea6739d5e9df91cc16cde72917feff..d7fab2fb61dc3de14e382bac6127db956605e7ad 100644
index 2d1c8d5cf8ea6739d5e9df91cc16cde72917feff..ba677f282f2c8a05d1bad88226655549a81679bb 100644
--- a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java
+++ b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java
@@ -25,27 +25,38 @@ import net.minecraft.world.level.storage.DimensionDataStorage;
@ -3218,7 +3218,15 @@ index 2d1c8d5cf8ea6739d5e9df91cc16cde72917feff..d7fab2fb61dc3de14e382bac6127db95
if (nbt != null) {
CompoundTag level = nbt.getCompound("Level");
if (level.getBoolean("TerrainPopulated")) {
@@ -80,11 +91,13 @@ public class ChunkStorage implements AutoCloseable {
@@ -63,6 +74,7 @@ public class ChunkStorage implements AutoCloseable {
public CompoundTag upgradeChunkTag(ResourceKey<LevelStem> resourcekey, Supplier<DimensionDataStorage> supplier, CompoundTag nbttagcompound, Optional<ResourceKey<Codec<? extends ChunkGenerator>>> optional, ChunkPos pos, @Nullable LevelAccessor generatoraccess) throws IOException {
// CraftBukkit end
+ nbttagcompound = nbttagcompound.copy(); // Paper - defensive copy, another thread might modify this
int i = ChunkStorage.getVersion(nbttagcompound);
// CraftBukkit start
@@ -80,11 +92,13 @@ public class ChunkStorage implements AutoCloseable {
if (i < 1493) {
nbttagcompound = NbtUtils.update(this.fixerUpper, DataFixTypes.CHUNK, nbttagcompound, i, 1493);
if (nbttagcompound.getCompound("Level").getBoolean("hasLegacyStructureData")) {
@ -3232,7 +3240,7 @@ index 2d1c8d5cf8ea6739d5e9df91cc16cde72917feff..d7fab2fb61dc3de14e382bac6127db95
}
}
@@ -129,26 +142,39 @@ public class ChunkStorage implements AutoCloseable {
@@ -129,26 +143,39 @@ public class ChunkStorage implements AutoCloseable {
@Nullable
public CompoundTag read(ChunkPos chunkPos) throws IOException {

4
patches/server/0352-Guard-against-serializing-mismatching-chunk-coordina.patch
View file

@ -38,10 +38,10 @@ index 3e631d55d30831a4063e23f9dbc7a315d11a7b68..cf86755050632b158576849b78607978
if (!Objects.equals(chunkPos, chunkcoordintpair1)) {
ChunkSerializer.LOGGER.error("Chunk file at {} is in the wrong location; relocating. (Expected {}, got {})", chunkPos, chunkPos, chunkcoordintpair1);
diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java
index d7fab2fb61dc3de14e382bac6127db956605e7ad..b1b1fa19cfd533d5625a462af399c5fd055629b0 100644
index ba677f282f2c8a05d1bad88226655549a81679bb..392fd2f5919d6a8f37c9f2b0421831d6ce381e0c 100644
--- a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java
+++ b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java
@@ -147,6 +147,13 @@ public class ChunkStorage implements AutoCloseable {
@@ -148,6 +148,13 @@ public class ChunkStorage implements AutoCloseable {
// Paper start - async chunk io
public void write(ChunkPos chunkPos, CompoundTag nbt) throws IOException {

8
patches/server/0778-Rewrite-dataconverter-system.patch
View file

@ -21609,10 +21609,10 @@ index 0000000000000000000000000000000000000000..967ad1186cbc81a76a4958ea99d4eff3
+ }
+}
diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java
index d44154ba43e06934d7889f2f20d1a27765504574..f8167882a0f11c6fff86e494800864ecf59bb8b5 100644
index a5a45118644fc1bc8caeefa59b5f897ed590e7ae..8dfac195e7f03f8fe18ba6ee79e195efade46bea 100644
--- a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java
+++ b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java
@@ -78,7 +78,7 @@ public class ChunkStorage implements AutoCloseable {
@@ -79,7 +79,7 @@ public class ChunkStorage implements AutoCloseable {
int i = ChunkStorage.getVersion(nbttagcompound);
// CraftBukkit start
@ -21621,7 +21621,7 @@ index d44154ba43e06934d7889f2f20d1a27765504574..f8167882a0f11c6fff86e494800864ec
CompoundTag level = nbttagcompound.getCompound("Level");
if (level.getBoolean("TerrainPopulated") && !level.getBoolean("LightPopulated")) {
ServerChunkCache cps = (generatoraccess == null) ? null : ((ServerLevel) generatoraccess).getChunkSource();
@@ -90,7 +90,7 @@ public class ChunkStorage implements AutoCloseable {
@@ -91,7 +91,7 @@ public class ChunkStorage implements AutoCloseable {
// CraftBukkit end
if (i < 1493) {
@ -21630,7 +21630,7 @@ index d44154ba43e06934d7889f2f20d1a27765504574..f8167882a0f11c6fff86e494800864ec
if (nbttagcompound.getCompound("Level").getBoolean("hasLegacyStructureData")) {
synchronized (this.persistentDataLock) { // Paper - Async chunk loading
if (this.legacyStructureHandler == null) {
@@ -112,7 +112,7 @@ public class ChunkStorage implements AutoCloseable {
@@ -113,7 +113,7 @@ public class ChunkStorage implements AutoCloseable {
// Spigot end
ChunkStorage.injectDatafixingContext(nbttagcompound, resourcekey, optional);