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Cisco Bug: CSCvu20893 - CTIManager cored due to double free operation

Last Modified

Aug 25, 2020

Products (1)

  • Cisco Unified Communications Manager (CallManager)

Known Affected Releases


Description (partial)

CTIManager service crashing while trying to access memory block which is corrupted. Someone overwrote some of its bytes.

CTIManager services cores and generates the the below backtrace.

#0  0xf77a0430 in __kernel_vsyscall ()
#1  0xf66de147 in raise () from /usr/lib/
#2  0xf66df983 in abort () from /usr/lib/
#3  0xf671fef5 in __libc_message () from /usr/lib/
#4  0xf672898d in _int_free () from /usr/lib/
#5  0xf77b65c5 in _dl_close_worker () from /lib/
#6  0xf77b6df1 in _dl_close () from /lib/
#7  0xf6a3ed22 in dlclose_doit () from /usr/lib/
#8  0xf77b0d6a in _dl_catch_error () from /lib/
#9  0xf6a3f32c in _dlerror_run () from /usr/lib/
#10 0xf6a3ed58 in dlclose () from /usr/lib/
#11 0xf733eb82 in _OdbcFreeLibrary () from /usr/local/cm/db/informix/lib/cli/
#12 0xf7349946 in _OdbcFreeGlsDll () from /usr/local/cm/db/informix/lib/cli/
#13 0xf7336596 in _OdbcDisconnect () from /usr/local/cm/db/informix/lib/cli/
#14 0xf72f6615 in _OdbcSqlDisconnect () from /usr/local/cm/db/informix/lib/cli/
#15 0xf72f6767 in SQLDisconnect () from /usr/local/cm/db/informix/lib/cli/
#16 0xf74625a3 in odbc::Connection::~Connection (this=0xf5ad5f58, __in_chrg=<optimized out>) at connection.cpp:111
#17 0xf746277c in odbc::Connection::~Connection (this=0xf5ad5f58, __in_chrg=<optimized out>) at connection.cpp:139
#18 0xf74e4917 in dbl::DriverManager::FreeConnectionFailOver () at dbldriver.cpp:970
#19 0xf74db39a in dbl::ConnMonitorTask::svc (this=0x57713368) at ConnMonitorTask.cpp:91
#20 0xf6be725a in ACE_Task_Base::svc_run (args=0x57713368) at Task.cpp:271
#21 0xf6be8c6d in ACE_Thread_Adapter::invoke_i (this=0x577185f8) at Thread_Adapter.cpp:161
#22 0xf6be8bb4 in ACE_Thread_Adapter::invoke (this=0x577185f8) at Thread_Adapter.cpp:96
#23 0xf6b7d5af in ace_thread_adapter (args=0x577185f8) at Base_Thread_Adapter.cpp:126
#24 0xf6a09b4c in start_thread () from /usr/lib/
#25 0xf67ad01e in clone () from /usr/lib/
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