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Cisco Bug: CSCsy83970 - sshd crashed when vty_reserve is cleaned up before ssh connect requet

Last Modified

May 16, 2018

Products (1)

  • Cisco Carrier Routing System

Known Affected Releases


Description (partial)


sshd process is crashing if the vty_reserve is cleaned up before the ssh connect request is made to 
an already reserved vty. 

This happens in the following scenario
1) Configure two radius servers first one dummy and second a proper one.
2) Configure aaa accounting exec default group radius
3) Do the configurations for ssh
4) Configure ssh timeout as 5

Now when you try to bring up a ssh session to the box you will observe a sshd process crash.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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