[sr-dev] [kamailio/kamailio] ims_registrar_pcscf: Update tmp security only if there are sec-agree … (#1527)

[Tsvetomir Dimitrov]

…params in the message

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#### Description
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If a register is received without sec-agree parameters, a NULL pointer is deferenced, which causes segfault.
You can view, comment on, or merge this pull request online at:

  https://github.com/kamailio/kamailio/pull/1527

-- Commit Summary --

  * ims_registrar_pcscf: Update tmp security only if there are sec-agree params in the message

-- File Changes --

    M src/modules/ims_registrar_pcscf/save.c (8)

-- Patch Links --

https://github.com/kamailio/kamailio/pull/1527.patch
https://github.com/kamailio/kamailio/pull/1527.diff

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