Windows NT Terminal and Telnet May Cause an Access Violation

CAUSE

There is a timing window in the Telnet service that can cause the master thread to delete the client's critical section before the client thread terminates. This occurs if Terminal closes just before the master tries to write the TELNET> prompt. The master's write then fails, causing it to quit and delete the critical section. The client's read then fails, causing it to try to access the critical section during its termination processing. The client thread then access violates and the access violation error message is generated.