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Cisco Bug: CSCvs34549 - Memory corruption due to bad free_prev pointer.

Last Modified

Jun 16, 2020

Products (1)

  • Cisco IOS

Known Affected Releases

16.9.4

Description (partial)

Symptom:
Voice Gateway is crashing due to memory corruption which is a consequence of bad free_prev pointer. Following errors are seen:

%SYS-3-BADFREEPTRS: Bad free_prev pointer ...
...
%SYS-6-BLKINFO: Corrupted previous pointer in next of freed block blk ...

Conditions:
TLS configured for SIP, so that is likely to be a culprit.
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