I have  noticed that my kamailio proxy, version 4.2.2 is originating core dumps.

This happens when Kamailio receives an INVITE in failure route, then execute the function async_sleep(3), after that  changes request uri, then it stops with following error message shown below:

 <core> [mem/f_malloc.c:586]: fm_free(): BUG: fm_free: bad pointer 0x7f8d26605ed8 (out of memory block!), called from <core>: parser/msg_parser.c:
 set_path_vector(822) - aborting

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