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Cisco Bug: CSCuq32246 - Memory corrutpion crash in the content scan ug chunk w/ scansafe enabled

Last Modified

Mar 19, 2020

Products (81)

  • Cisco IOS
  • Cisco 861W Integrated Services Router
  • Cisco 888W Integrated Services Router
  • Cisco C897VA Integrated Services Router
  • Cisco 812 CiFi Integrated Services Router
  • Cisco 819 Hardened Integrated Services Router
  • Cisco 886VA-CUBE Integrated Services Router
  • Cisco 1905 Serial Integrated Services Router
  • Cisco 886VAG 3G Integrated Services Router
  • Cisco 2951 Integrated Services Router
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Known Affected Releases

15.3(3)M3

Description (partial)

Symptom:
The device experiences chunk memory corruption which leads to a crash:

1024613: Aug  1 11:31:08.037 MDT: %SYS-2-CHUNKBADMAGIC: Bad magic number in chunk header, chunk 3C49458C  data 3F401BB8  chunkmagic 0  chunk_freemagic 3DDC1B14 -Process= "l4f mgt task", ipl= 3, pid= 398
-Traceback= 3650C524z 364FCAE8z 3259DFD0z 325B6FE4z 3328D544z 3328D528z
chunk_diagnose, code = 1
chunk name is content scan ug

current chunk header = 0x3F401BA8
data check, ptr = 0x3F401BB8

next chunk header = 0x3F401C0C
data check, ptr = 0x3F401C1C

previous chunk header = 0x3F401B44
data check, ptr = 0x3F401B54

Conditions:
This issue occurs with scansafe enabled. The exact conditions are still being investigated.
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