[SR-Users] Kamailio recvfrom out of bounds

I have one kamailio server listening in 2 network interfaces, kamailio receives sip messages from interface A and then send it to destine through interface B. When we start kamailio service then run gdb for each kamailio network interface process, execute the command "bt full" the result is the following: *tmp = 0x5f801b994c4715bd <Address 0x5f801b994c4715bd out of bounds>* interface - A bt full #0 0x00007fb01bfa40c3 in recvfrom () from /lib64/libc.so.6 No symbol table info available. #1 0x000000000047f2ba in udp_rcv_loop () at udp_server.c:421 len = 13 buf = '\000' <repeats 65535 times> tmp = 0x5f801b994c4715bd <Address 0x5f801b994c4715bd out of bounds> from = 0x7faf9bf38bb8 fromlen = 16 ri = {src_ip = {af = 2309178400, len = 32765, u = {addrl = {5458819, 4284160}, addr32 = {5458819, 0, 4284160, 0}, addr16 = {19331, 83, 0, 0, 24320, 65, 0, 0}, addr = "\203KS\000\000\000\000\000\000_A\000\000\000\000"}}, dst_ip = {af = 2, len = 4, u = {addrl = {80026686, 0}, addr32 = {80026686, 0, 0, 0}, addr16 = {7230, 1221, 0, 0, 0, 0, 0, 0}, addr = ">\034\305\004", '\000' <repeats 11 times>}}, src_port = 55576, dst_port = 5060, proto_reserved1 = 0, proto_reserved2 = 0, src_su = {s = {sa_family = 32687, sa_data = "\000\000\200D\243\211\375\177\000\000\213\337D"}, sin = {sin_family = 32687, sin_port = 0, sin_addr = {s_addr = 2309178496}, sin_zero = "\375\177\000\000\213\337D"}, sin6 = {sin6_family = 32687, sin6_port = 0, sin6_flowinfo = 2309178496, sin6_addr = {__in6_u = {__u6_addr8 = "\375\177\000\000\213\337D\000\000\000\000\000p", <incomplete sequence \372\233>, __u6_addr16 = {32765, 0, 57227, 68, 0, 0, 21616, 39930}, __u6_addr32 = {32765, 4513675, 0, 2616874096}}}, sin6_scope_id = 32687}}, bind_address = 0x7faf9becd7d8, proto = 1 '\001'} __FUNCTION__ = "udp_rcv_loop" #2 0x0000000000525eae in main_loop () at main.c:1573 i = 0 pid = 0 si = 0x7faf9becd7d8 si_desc = "udp receiver child=0 sock=62.28.197.4:5060 \000\000\000\000\000\000\001\000\000\000\000\000\000\000\260\244r\023n\000\000\000\071\263q\000\000\000\000\000\020\243q\000\000\000\000\000\b\000\000\000\001\000\000\000\260\373\371\233\257\177\000\000\220E\243\211\375\177\000\000|\351O\000\000\000\000\000\000\266\253\023\257\177\000\000\260\244r\023\257\177\000" ---Type <return> to continue, or q <return> to quit--- nrprocs = 32 __FUNCTION__ = "main_loop" #3 0x000000000052c395 in main (argc=11, argv=0x7ffd89a34848) at main.c:2533 cfg_stream = 0x2296010 c = -1 r = 0 tmp = 0x7ffd89a35f61 "" tmp_len = 0 port = 0 proto = 32688 options = 0x725010 ":f:cm:M:dVIhEeb:l:L:n:vKrRDTN:W:w:t:u:g:P:G:SQ:O:a:A:" ret = -1 seed = 1641321572 rfd = 4 debug_save = 0 debug_flag = 0 dont_fork_cnt = 0 n_lst = 0x7ffd89a34710 p = 0x7fb01bf4c646 <intel_check_word+166> "H\205\300t\025\017\266P\003\017\266\312D9\371\017\204", <incomplete sequence \305> __FUNCTION__ = "main" interface B bt full #0 0x00007fb01bfa40c3 in recvfrom () from /lib64/libc.so.6 No symbol table info available. #1 0x000000000047f2ba in udp_rcv_loop () at udp_server.c:421 len = 45 buf = '\000' <repeats 65535 times> tmp = 0x13cb2f24296000e9 <Address 0x13cb2f24296000e9 out of bounds> from = 0x7faf9bf38bb8 fromlen = 16 ri = {src_ip = {af = 2309178400, len = 32765, u = {addrl = {5458819, 4284160}, addr32 = {5458819, 0, 4284160, 0}, addr16 = {19331, 83, 0, 0, 24320, 65, 0, 0}, addr = "\203KS\000\000\000\000\000\000_A\000\000\000\000"}}, dst_ip = {af = 2, len = 4, u = {addrl = {2764381246, 0}, addr32 = {2764381246, 0, 0, 0}, addr16 = {7230, 42181, 0, 0, 0, 0, 0, 0}, addr = ">\034Ť", '\000' <repeats 11 times>}}, src_port = 56136, dst_port = 5060, proto_reserved1 = 0, proto_reserved2 = 0, src_su = {s = {sa_family = 32687, sa_data = "\000\000\200D\243\211\375\177\000\000\213\337D"}, sin = {sin_family = 32687, sin_port = 0, sin_addr = {s_addr = 2309178496}, sin_zero = "\375\177\000\000\213\337D"}, sin6 = {sin6_family = 32687, sin6_port = 0, sin6_flowinfo = 2309178496, sin6_addr = {__in6_u = { __u6_addr8 = "\375\177\000\000\213\337D\000\000\000\000\000p", <incomplete sequence \372\233>, __u6_addr16 = {32765, 0, 57227, 68, 0, 0, 21616, 39930}, __u6_addr32 = {32765, 4513675, 0, 2616874096}}}, sin6_scope_id = 32687}}, bind_address = 0x7faf9becda08, proto = 1 '\001'} __FUNCTION__ = "udp_rcv_loop" #2 0x0000000000525eae in main_loop () at main.c:1573 ---Type <return> to continue, or q <return> to quit--- i = 0 pid = 0 si = 0x7faf9becda08 si_desc = "udp receiver child=0 sock=62.28.197.164:5060 \000\000\000\000\001\000\000\000\000\000\000\000\260\244r\023n\000\000\000\071\263q\000\000\000\000\000\020\243q\000\000\000\000\000\b\000\000\000\001\000\000\000\260\373\371\233\257\177\000\000\220E\243\211\375\177\000\000|\351O\000\000\000\000\000\000\266\253\023\257\177\000\000\260\244r\023\257\177\000" nrprocs = 32 __FUNCTION__ = "main_loop" #3 0x000000000052c395 in main (argc=11, argv=0x7ffd89a34848) at main.c:2533 cfg_stream = 0x2296010 c = -1 r = 0 tmp = 0x7ffd89a35f61 "" tmp_len = 0 port = 0 proto = 32688 options = 0x725010 ":f:cm:M:dVIhEeb:l:L:n:vKrRDTN:W:w:t:u:g:P:G:SQ:O:a:A:" ---Type <return> to continue, or q <return> to quit--- ret = -1 seed = 1641321572 rfd = 4 debug_save = 0 debug_flag = 0 dont_fork_cnt = 0 n_lst = 0x7ffd89a34710 p = 0x7fb01bf4c646 <intel_check_word+166> "H\205\300t\025\017\266P\003\017\266\312D9\371\017\204", <incomplete sequence \305> __FUNCTION__ = "main" [root@c4-srv1 kamailio]# kamctl stats shmem shmem:fragments = 2552 shmem:free_size = 2082764040 shmem:max_used_size = 66449600 shmem:real_used_size = 64719608 shmem:total_size = 2147483648 shmem:used_size = 54355992 Can anyone explain the meaning of *tmp = 0x5f801b994c4715bd <Address 0x5f801b994c4715bd out of bounds>* Best Regards José Seabra