Radius service crashes

Issue

The following are details from debugging of radius when the crash happens:

(8) sql: EXPAND UPDATE radacct_dslaccess SET AcctStopTime = '%S', AcctSessionTime = '%{Acct-Session-Time}', AcctInputOctets = '%{Acct-Input-Octets}', AcctOutputOctets = '%{Acct-Output-Octets}', AcctTerminateCause = '%{Acct-Terminate-Cause}', AcctStopDelay = '%{Acct-Delay-Time}', AcctMultiSessionId = '%{Acct-Multi-Session-Id}' WHERE AcctSessionId = '%{Acct-Session-Id}' AND op_number=substr('%{ADSL-Agent-Remote-Id}',1,8) AND NASIPAddress = '%{NAS-IP-Address}' AND AcctStopTime = 0
(8) sql:    --> UPDATE radacct_dslaccess SET AcctStopTime = '2018-01-18 14:59:58.817903', AcctSessionTime = '480', AcctInputOctets = '131914', AcctOutputOctets = '357551', AcctTerminateCause = 'Port-Error', AcctStopDelay = '75', AcctMultiSessionId = '' WHERE AcctSessionId = '0354557D' AND op_number=substr('12345678-12345678-',1,8) AND NASIPAddress = '<nas ip address>' AND AcctStopTime = 0
(8) sql: Executing query: UPDATE radacct_dslaccess SET AcctStopTime = '2018-01-18 14:59:58.817903', AcctSessionTime = '480', AcctInputOctets = '131914', AcctOutputOctets = '357551', AcctTerminateCause = 'Port-Error', AcctStopDelay = '75', AcctMultiSessionId = '' WHERE AcctSessionId = '0354557D' AND op_number=substr('12345678-12345678-',1,8) AND NASIPAddress = '<nas ip address>' AND AcctStopTime = 0
rlm_sql_mysql: Rows matched: 0  Changed: 0  Warnings: 0
(8) sql: SQL query returned: success
(8) sql: 0 record(s) updated
(8) sql: Trying next query...
(8) sql: Ignoring null query
Bad talloc magic value - unknown value

talloc abort: Bad talloc mag