Why sshd segfaults and throws error 'Cannot access memory at address' ?

Solution Verified - Updated -

Issue

  • sshd segfault observed in RHEL 6.4.
  • coredump indicates memory issue Cannot access memory at address.
  • coredump shows below message in back trace
(gdb) f 1
#1  0x00007fc1c9967f1a in _dbus_timeout_list_add_timeout (timeout_list=0x7fc1d30069a0, timeout=0x7fc1d2fa4350) at dbus-timeout.c:319
319       if (!(* timeout_list->add_timeout_function) (timeout,
(gdb) p *timeout_list->add_timeout_function
Cannot access memory at address 0x7fc1c94258a0

Environment

  • Red Hat Enterprise Linux 6.4
  • openssh-5.3p1-94.el6.x86_64

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