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HADOOP-18569. NFS Gateway may release buffer too early (#5207)

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Doroszlai, Attila 2022-12-12 19:02:49 +01:00 committed by GitHub
parent ccd0fe363b
commit df4812df65
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2 changed files with 16 additions and 5 deletions
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13
hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/oncrpc/RpcProgram.java
View File

@ -26,6 +26,7 @@ import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.util.ReferenceCountUtil;
import org.apache.hadoop.thirdparty.com.google.common.annotations.VisibleForTesting;
import org.apache.hadoop.oncrpc.RpcAcceptedReply.AcceptState;
import org.apache.hadoop.oncrpc.security.VerifierNone;
@ -163,8 +164,16 @@ public abstract class RpcProgram extends ChannelInboundHandlerAdapter {
public void channelRead(ChannelHandlerContext ctx, Object msg)
throws Exception {
RpcInfo info = (RpcInfo) msg;
try {
channelRead(ctx, info);
} finally {
ReferenceCountUtil.release(info.data());
}
}
private void channelRead(ChannelHandlerContext ctx, RpcInfo info)
throws Exception {
RpcCall call = (RpcCall) info.header();
SocketAddress remoteAddress = info.remoteAddress();
if (LOG.isTraceEnabled()) {
LOG.trace(program + " procedure #" + call.getProcedure());
@ -256,4 +265,4 @@ public abstract class RpcProgram extends ChannelInboundHandlerAdapter {
public int getPortmapUdpTimeoutMillis() {
return portmapUdpTimeoutMillis;
}
}
}

8
hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/oncrpc/RpcUtil.java
View File

@ -129,15 +129,17 @@ public final class RpcUtil {
RpcInfo info = null;
try {
RpcCall callHeader = RpcCall.read(in);
ByteBuf dataBuffer = Unpooled.wrappedBuffer(in.buffer()
.slice());
ByteBuf dataBuffer = buf.slice(b.position(), b.remaining());
info = new RpcInfo(callHeader, dataBuffer, ctx, ctx.channel(),
remoteAddress);
} catch (Exception exc) {
LOG.info("Malformed RPC request from " + remoteAddress);
} finally {
buf.release();
// only release buffer if it is not passed to downstream handler
if (info == null) {
buf.release();
}
}
if (info != null) {