[System.Data.SqlClient 4.8.6] Weird issue related to "ObjectDisposedException" on a socket?

[gjtter]

I've encountered a very weird issue that occurs intermittently, I don't know how to reproduce it 100% whenever I want, I can just debug it and wait for it to occur, once it thrown and stopped in Visual Studio, all the stack trace I see is this:

System.Data.SqlClient.dll!System.Data.SqlClient.SqlInternalConnection.OnError(System.Data.SqlClient.SqlException exception, bool breakConnection, System.Action<System.Action> wrapCloseInAction)
System.Data.SqlClient.dll!System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(System.Data.SqlClient.TdsParserStateObject stateObj, bool callerHasConnectionLock, bool asyncClose)
System.Data.SqlClient.dll!System.Data.SqlClient.TdsParser.Connect(System.Data.SqlClient.ServerInfo serverInfo, System.Data.SqlClient.SqlInternalConnectionTds connHandler, bool ignoreSniOpenTimeout, long timerExpire, bool encrypt, bool trustServerCert, bool integratedSecurity, bool withFailover)
System.Data.SqlClient.dll!System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(System.Data.SqlClient.ServerInfo serverInfo, string newPassword, System.Security.SecureString newSecurePassword, bool ignoreSniOpenTimeout, System.Data.ProviderBase.TimeoutTimer timeout, bool withFailover)
System.Data.SqlClient.dll!System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(System.Data.SqlClient.ServerInfo serverInfo, string newPassword, System.Security.SecureString newSecurePassword, bool redirectedUserInstance, System.Data.SqlClient.SqlConnectionString connectionOptions, System.Data.SqlClient.SqlCredential credential, System.Data.ProviderBase.TimeoutTimer timeout)
System.Data.SqlClient.dll!System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(System.Data.ProviderBase.TimeoutTimer timeout, System.Data.SqlClient.SqlConnectionString connectionOptions, System.Data.SqlClient.SqlCredential credential, string newPassword, System.Security.SecureString newSecurePassword, bool redirectedUserInstance)
System.Data.SqlClient.dll!System.Data.SqlClient.SqlInternalConnectionTds.SqlInternalConnectionTds(System.Data.ProviderBase.DbConnectionPoolIdentity identity, System.Data.SqlClient.SqlConnectionString connectionOptions, System.Data.SqlClient.SqlCredential credential, object providerInfo, string newPassword, System.Security.SecureString newSecurePassword, bool redirectedUserInstance, System.Data.SqlClient.SqlConnectionString userConnectionOptions, System.Data.SqlClient.SessionData reconnectSessionData, bool applyTransientFaultHandling, string accessToken)
System.Data.SqlClient.dll!System.Data.SqlClient.SqlConnectionFactory.CreateConnection(System.Data.Common.DbConnectionOptions options, System.Data.Common.DbConnectionPoolKey poolKey, object poolGroupProviderInfo, System.Data.ProviderBase.DbConnectionPool pool, System.Data.Common.DbConnection owningConnection, System.Data.Common.DbConnectionOptions userOptions)
System.Data.SqlClient.dll!System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(System.Data.ProviderBase.DbConnectionPool pool, System.Data.Common.DbConnection owningObject, System.Data.Common.DbConnectionOptions options, System.Data.Common.DbConnectionPoolKey poolKey, System.Data.Common.DbConnectionOptions userOptions)
System.Data.SqlClient.dll!System.Data.ProviderBase.DbConnectionPool.CreateObject(System.Data.Common.DbConnection owningObject, System.Data.Common.DbConnectionOptions userOptions, System.Data.ProviderBase.DbConnectionInternal oldConnection)
System.Data.SqlClient.dll!System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(System.Data.Common.DbConnection owningObject, System.Data.Common.DbConnectionOptions userOptions, System.Data.ProviderBase.DbConnectionInternal oldConnection)
System.Data.SqlClient.dll!System.Data.ProviderBase.DbConnectionPool.TryGetConnection(System.Data.Common.DbConnection owningObject, uint waitForMultipleObjectsTimeout, bool allowCreate, bool onlyOneCheckConnection, System.Data.Common.DbConnectionOptions userOptions, out System.Data.ProviderBase.DbConnectionInternal connection)
System.Data.SqlClient.dll!System.Data.ProviderBase.DbConnectionPool.WaitForPendingOpen()

So looks like the OnError callback on SqlInternalConnection accesses some socket object but that socket object somehow has been disposed before.

This seems to happen on Linux only, on Windows I can't reproduce the errors.

For some constraints on my project, I can't use a newer version (e.g: port to Microsoft.Data.SqlClient) so I need to find a work-around or fix this myself.

The problem is it's really hard to find the exact source code for System.Data.SqlClient version 4.8.6 (as shown in the nuget package explorer). If you don't know the cause as well as possible solution to this issue but you know where I can find the source code, please share with me.

Debugging into the source code is also not possible because it lacks the file System.Data.SqlClient.pdb which is also unable to be found anywhere.