* buffer is allocated but not freed after use by PDCP

> Direct leak of 192 byte(s) in 3 object(s) allocated from:
    > 0 0x7ffff74b4c38 in __interceptor_realloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:164
    > 1 0x55555775ee74 in encode_dyn_cb /cmake_targets/ran_build/build/openair2/RRC/LTE/MESSAGES/per_encoder.c:23
    > 2 0x55555774776e in _uper_encode_flush_outp /cmake_targets/ran_build/build/openair2/RRC/LTE/MESSAGES/uper_encoder.c:126
    > 3 0x55555774776e in uper_encode /cmake_targets/ran_build/build/openair2/RRC/LTE/MESSAGES/uper_encoder.c:36
    > 4 0x555557747c91 in uper_encode_to_new_buffer /cmake_targets/ran_build/build/openair2/RRC/LTE/MESSAGES/uper_encoder.c:85
    > 5 0x5555576c5172 in do_NR_ULInformationTransfer /openair2/RRC/NR/MESSAGES/asn1_msg.c:965
    > 6 0x555556fba691 in rrc_nrue /openair2/RRC/NR_UE/rrc_UE.c:1819
    > 7 0x555556fc4d2e in rrc_nrue_task /openair2/RRC/NR_UE/rrc_UE.c:1717
    > 8 0x7ffff5e94ac2 in start_thread nptl/pthread_create.c:442