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[8.0] Guard against empty Accept address #108334

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Merged
merged 2 commits into from
Jan 13, 2025
Merged

[8.0] Guard against empty Accept address #108334

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0e15607
guard agains empty Accept address
wfurt Sep 27, 2024
b60e51e
remove assert
wfurt Oct 1, 2024
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4 changes: 2 additions & 2 deletions src/libraries/System.Net.Sockets/src/System/Net/Sockets/Socket.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -3601,15 +3601,15 @@ internal void InternalSetBlocking(bool desired)
}

// CreateAcceptSocket - pulls unmanaged results and assembles them into a new Socket object.
internal Socket CreateAcceptSocket(SafeSocketHandle fd, EndPoint remoteEP)
internal Socket CreateAcceptSocket(SafeSocketHandle fd, EndPoint? remoteEP)
{
// Internal state of the socket is inherited from listener.
Debug.Assert(fd != null && !fd.IsInvalid);
Socket socket = new Socket(fd, loadPropertiesFromHandle: false);
return UpdateAcceptSocket(socket, remoteEP);
}

internal Socket UpdateAcceptSocket(Socket socket, EndPoint remoteEP)
internal Socket UpdateAcceptSocket(Socket socket, EndPoint? remoteEP)
{
// Internal state of the socket is inherited from listener.
socket._addressFamily = _addressFamily;
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3 changes: 1 addition & 2 deletions src/libraries/System.Net.Sockets/src/System/Net/Sockets/SocketAsyncEventArgs.Unix.cs
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Expand Up @@ -35,7 +35,6 @@ private void CompleteAcceptOperation(IntPtr acceptedFileDescriptor, Memory<byte>
_acceptedFileDescriptor = acceptedFileDescriptor;
if (socketError == SocketError.Success)
{
Debug.Assert(socketAddress.Length > 0);
_acceptAddressBufferCount = socketAddress.Length;
}
else
Expand Down Expand Up @@ -343,7 +342,7 @@ private SocketError FinishOperationAccept(SocketAddress remoteSocketAddress)

Socket acceptedSocket = _currentSocket!.CreateAcceptSocket(
SocketPal.CreateSocket(_acceptedFileDescriptor),
_currentSocket._rightEndPoint!.Create(remoteSocketAddress));
remoteSocketAddress.Size > 0 ? _currentSocket._rightEndPoint!.Create(remoteSocketAddress) : null);
if (_acceptSocket is null)
{
// Store the accepted socket
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