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Cisco Bug: CSCsz05125 - ISSU(rls2.3->rls3.0) corrupted memory and mcp_fastpath crashes with ssh

Last Modified

Feb 15, 2017

Products (1)

  • Cisco IOS

Known Affected Releases

12.2(33)XNC 12.2XN

Description (partial)


    The router may reset unexpectedly during
    an ISSU process from RLS2 to RLS3.


    This only occurs when all 3 of the following are true...

      1. ssh rsa keys are configured.
      2. the RLS2 image does not have CSCsx65975 integrated.
      3. the RLS3 image does not have CSCsz05125 integrated.

    This will not occur if the ssh keys are zeroized (removed).
    This will not occur if RLS2 has CSCsx65975 integrated.
    This will not occur if RLS3 has CSCsz05125 integrated.
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