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Cisco Bug: CSCuo55366 - memory corruption crash on ACL functionality

Last Modified

Jan 24, 2017

Products (81)

  • Cisco IOS
  • Cisco 892W Integrated Services Router
  • Cisco 888W Integrated Services Router
  • Cisco C897VA Integrated Services Router
  • Cisco 812 CiFi Integrated Services Router
  • Cisco C892FSP Integrated Services Router
  • Cisco 1905 Serial Integrated Services Router
  • Cisco 886VA-CUBE Integrated Services Router
  • Cisco 861W Integrated Services Router
  • Cisco 881SRSTW Integrated Services Router
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Known Affected Releases

15.3(3)M2

Description (partial)

Symptom:
router randomly crashes due to a memory corruption:

Apr 27 16:01:42 GMT: %SYS-2-FREEFREE: Attempted to free unassigned memory at 411FBE40, alloc 31569E94, dealloc 31569BCC
-Traceback= 32088BF0z 3208A480z 3306A548z 330713B8z 33072404z 3306FABCz 3306E4FCz 3306EBA8z 3306F450z 3306F4D0z 3306F60Cz 3306CFD0z 3307015Cz 330724FCz 332DD444z 332DD668z
Apr 27 16:01:42 GMT: %SYS-6-MTRACE: mallocfree: addr, pc
 3CE8F4DC,31A25714 3CE8F4DC,40000294 3D7E5228,31A256EC 3D7E5228,4000020A
 411FBE40,320955E8 C13BB434,3338A210 41203C38,31966DE4 C134D2A8,31966DE4
Apr 27 16:01:42 GMT: %SYS-6-MTRACE: mallocfree: addr, pc
 C178D914,31966DE4 413BC5D4,368B0F48 413BC5D4,40008002 C13BAF38,368B0E88
 C13BAF38,40000014 C0F0CF2C,31569BCC C13BAFDC,6000009C C13BAF38,31569BC0
Apr 27 16:01:42 GMT: %SYS-6-BLKINFO: Attempt to free a block that is in use blk 411FBE10, words 14, alloc 31569E94, Free, dealloc 31569BCC, rfcnt 0
-Traceback= 33298AECz 32088BF0z 3208A480z 3306A548z 330713B8z 33072404z 3306FABCz 3306E4FCz 3306EBA8z 3306F450z 3306F4D0z 3306F60Cz 3306CFD0z 3307015Cz 330724FCz 332DD444z
Apr 27 16:01:42 GMT: %SYS-6-MEMDUMP: 0x411FBE10: 0xAB1234CD 0x18F0000 0x196 0x38441950
Apr 27 16:01:42 GMT: %SYS-6-MEMDUMP: 0x411FBE20: 0x31569E94 0x411FBE5C 0x411FBDC0 0xE
Apr 27 16:01:42 GMT: %SYS-6-MEMDUMP: 0x411FBE30: 0x0 0x31569BCC 0x100019D 0xC0FCF674

%Software-forced reload

Conditions:
This may arise after a cofig change <which is yet to be clear at the moment>.

Apr 27 16:01:20 GMT: %SYS-5-CONFIG_I: Configured from console by v401346 on vty1 (146.170.66.215)
CMD: 'config t' 16:01:27 GMT Sun Apr 27 2014
validblock_diagnose, code = 12

current memory block, bp = 0x411FBE10,
memorypool type is Processor
data check, ptr = 0x411FBE40

next memory block, bp = 0x411FBE5C,
memorypool type is Processor
data check, ptr = 0x411FBE8C

previous memory block, bp = 0x411FBDAC,
memorypool type is Processor
data check, ptr = 0x411FBDDC
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Bug Details Include

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