[openssl-users] "shutdown while in init" error from SSL_read

[Jeffrey Lindsey]

What might cause the following error as a result of a call to SSL_read:

error:140E0197:SSL routines:SSL_shutdown:shutdown while in init

I'm seeing this error reported well after the initial handshake should 
have been completed, and before any call to SSL_shutdown on the SSL 
object given to SSL_read.  So, externally, there is no intention or 
knowledge of SSL being actively shutdown or initialized at the time of 
the read call.  No other errors were reported before this one.  
Occurrences of the error are uncommon, and I have not found a way to 
reliably reproduce it.  What could possibly be the cause of this error, 
and how could it be prevented?

For additional context:
Using OpenSLL version 1.0.2l.
This error is seen on the client side, using TLS 1.0 (TLSv1_client_method).
Only memory BIO objects (BIO_s_mem) are set into the SSL object.

Looking at the code, this error (SSL_R_SHUTDOWN_WHILE_IN_INIT) is only 
reported in SSL_shutdown, but I have not yet found how SSL_shutdown 
might be called from SSL_read.

Additionally, the program in which this error occurs may be using 
multiple SSL objects at a time, potentially with SSL objects on 
different threads, but no SSL objects are shared between threads. The 
SSL objects are created (via SSL_new) using the same shared context 
object (SSL_CTX).  Is there any chance the states or errors from 
different SSL objects are interfering with each other?

  - Jeffrey