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Cisco Bug: CSCur28336 - Memory leak and possible crash when using a logging discriminator

Last Modified

Jun 16, 2020

Products (96)

  • Cisco IOS
  • Cisco 892W Integrated Services Router
  • Cisco 886VA-CUBE Integrated Services Router
  • Cisco C892FSP Integrated Services Router
  • Cisco 1905 Serial Integrated Services Router
  • Cisco VG204XM Analog Voice Gateway
  • Cisco 881SRSTW Integrated Services Router
  • Cisco 861W Integrated Services Router
  • Cisco 2951 Integrated Services Router
  • Cisco 898 Secure G.SHDSL EFM/ATM with Multi-Mode 4G LTE ISR Router
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Known Affected Releases

15.4(3)M 15.4(3)S1.1

Description (partial)

A Cisco router with a logging discriminator configured may experience a memory leak or crash.

For this issue to be seen a logging discriminator needs to be configured and applied on the device in question. Under heavy syslog or debug output a memory leak may be seen. The rate of the leak is dependent on the number of logs being produced. In extreme cases it is possible to have the device crash as well.
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