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Cisco Bug: CSCta49512 - Cat4k crashes due to memory corruption

Last Modified

Jan 09, 2019

Products (14)

  • Cisco IOS
  • Cisco Catalyst 4500 Series Supervisor Engine V-10GE
  • Cisco Catalyst 4500 Series Supervisor Engine II-Plus-TS
  • Cisco Catalyst 4948 10 Gigabit Ethernet Switch
  • Cisco Catalyst 4928 10 Gigabit Ethernet Switch
  • Cisco Catalyst 4500 Supervisor Engine 6L-E
  • Cisco Catalyst 4948 Switch
  • Cisco ME 4924-10GE Switch
  • Cisco Catalyst 4500 Series Supervisor Engine II-Plus
  • Cisco Catalyst 4000/4500 Supervisor Engine V
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Known Affected Releases

12.2(50)SG4 12.2(50)SG5 12.2(52)SG 12.2(52)XO 12.2(53)SG

Description (partial)

 Switch reloads with memory corruption signatures in crashdump file.
 This bug would manifest in L3 configurations and *would not* affect L2  
 Specifically, if there are ARP entries and the arp table is being modified 
 (cleared, deleted due to routing flaps, etc) then the system can reload.
 This problem affects IOS releases 12.2(50)SG4, 12.2(50)SG5, 12.2(52)XO, 12.2
 (52)SG, 12.2(53)SG only.
 The fix is available in released IOS software on  Upgrade to 12.2(50)SG6 or 12.2(53)SG1 (and above). 

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