[SR-Users] Kamailio 5.5 TLS critical log in Debian 11

Matthias Urlichs matthias at urlichs.de
Fri Mar 11 11:34:31 CET 2022

On 11.03.22 11:14, Daniel-Constantin Mierla wrote:
> Double frees are safe for kamailio

until they are not, i.e. when (not if) something else manages to 
allocate the memory in question before the second "free" comes along, 
you have a problem.

How to proceed: replace the


at line 323 of tls_init.c with its macro expansion, i.e.

         _shm_root.xfree(_shm_root.mem_block, (p), "shm", fname, fline, 

(or something along these lines) so that you get some idea of where 
these "shm_free" calls originate.

This probably should also be done for the calls to malloc and realloc. 
There's no good reason to throw away the debug information.

-- regards
-- Matthias Urlichs

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