https://bugs.openldap.org/show_bug.cgi?id=9991
Issue ID: 9991
Summary: slapd may close a connection twice
Product: OpenLDAP
Version: 2.5.13
Hardware: All
OS: All
Status: UNCONFIRMED
Keywords: needs_review
Severity: normal
Priority: ---
Component: slapd
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
If slapd is sending an entry to a client, and the client is sending an Unbind
request and disconnecting at the same time, send_ldap_ber() will get an error
attempting to write on the dead socket. It will then try to call
connection_closing() to close the connection. But the frontend may also have
gotten a read error on the dead socket, and handled the close there already.
By the time send_ldap_ber() acquires the c_mutex and actually calls
connection_closing(), the conn struct may have already been assigned to a new
connection, and the connection_closing() call will erroneously close an active
session.
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