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Cisco Bug: CSCui94585 - TRM URL Filtering Crashing Routers due to Double-Free in Memory

Last Modified

Mar 09, 2018

Products (87)

  • Cisco IOS
  • Cisco 819 Hardened Integrated Services Router
  • Cisco 892W Integrated Services Router
  • Cisco C897VA Integrated Services Router
  • Cisco 2951 Integrated Services Router
  • Cisco 1905 Serial Integrated Services Router
  • Cisco 881SRSTW Integrated Services Router
  • Cisco C892FSP Integrated Services Router
  • Cisco 888W Integrated Services Router
  • Cisco 812 CiFi Integrated Services Router
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Known Affected Releases

15.2(4)M2

Description (partial)

Symptom:
Router with TRM (Trend Module) URL filtering may experience crashes due to memory corruption as a consequence of a freed memory block being released twice (ie: double-free scenario.)

validblock_diagnose, code = 12
SYS-2-FREEFREE  Attempted to free unassigned memory at XXXXXXXX, alloc XXXXXXXXX, dealloc XXXXXXXX

Conditions:
TRM enabled.
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