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Crash in dns_cache.c with dns_cache_init=off #3350

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dilyanpalauzov opened this issue Jan 27, 2023 · 8 comments
Open

Crash in dns_cache.c with dns_cache_init=off #3350

dilyanpalauzov opened this issue Jan 27, 2023 · 8 comments

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@dilyanpalauzov
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With Kamailio 5.6.3 I add this code

 -- Routing to foreign domains
 function ksr_route_sipout()
+        local y = KSR.enum.enum_query()
+        KSR.err('ENUM RESULT ' .. tostring(y) .. ' :RURI ' .. KSR.kx.get_ruri() .. '\n')

         if KSR.is_myself_ruri() then return 1; end
 
         KSR.hdr.append("P-Hint: outbound\r\n");

and dial +437200101011 . The code above produces the output “ENUM RESULT 1 :RURI sip:enum-test@sip.nemox.net”.

I have the DNS-related settings:

dns_try_naptr=on
use_dns_cache=off
dns_cache_init=off

Kamailio logs during the dial-in process:

INVITE sip:+437200101011@sip.example.org SIP/2.0
Via: SIP/2.0/UDP 192.168.0.199:40867;rport;branch=z9hG4bKU2Fc14H2NX4Kc
Max-Forwards: 70
From: <sip:myself@sip.example.org>;tag=vmjX7H12KrH1B
To: <sip:+437200101011@sip.example.org>
Call-ID: 8956e785-1905-123c-24bb-e4aaeae9dd8b
CSeq: 62865320 INVITE
Contact: <sip:myself@sip.example.org>
User-Agent: calls sofia-sip/1.13.12
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, PRACK, MESSAGE, SUBSCRIBE, NOTIFY, REFER, UPDATE
Supported: timer, 100rel, replaces, gruu, outbound
Content-Type: application/sdp
Content-Disposition: session
Content-Length: 240

v=0
o=- 9163509233734166984 5909793187606445082 IN IP4 192.168.0.199
s=-
c=IN IP4 22.222.222.222
t=0 0
m=audio 43264 RTP/AVP 9 8 0 3
a=rtpmap:9 G722/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:3 GSM/8000
a=rtcp:33730

 6(7) ERROR: <core> [core/kemi.c:96]: sr_kemi_core_err(): ksr_sipdump_event 1--------- sipdump:msg
SIP/2.0 407 Proxy Authentication Required
Via: SIP/2.0/UDP 192.168.0.199:40867;rport=40867;branch=z9hG4bKU2Fc14H2NX4Kc;received=22.222.222.222
From: <sip:myself@sip.example.org>;tag=vmjX7H12KrH1B
To: <sip:+437200101011@sip.example.org>;tag=44af9dbde0a62ae84f5c1ff272adb901.20dd651d
Call-ID: 8956e785-1905-123c-24bb-e4aaeae9dd8b
CSeq: 62865320 INVITE
Proxy-Authenticate: Digest realm="example.int", nonce="Y9QB/GPUANBJum6LTOLsDnjaSLKc/8o1A1zk1oUtFXzlFe/OfiMEAg=="
Content-Length: 0



 8(9) ERROR: <core> [core/kemi.c:96]: sr_kemi_core_err(): ksr_sipdump_event 1--------- sipdump:msg
ACK sip:+437200101011@sip.example.org SIP/2.0
Via: SIP/2.0/UDP 192.168.0.199:40867;rport;branch=z9hG4bKU2Fc14H2NX4Kc
Max-Forwards: 70
From: <sip:myself@sip.example.org>;tag=vmjX7H12KrH1B
To: <sip:+437200101011@sip.example.org>;tag=44af9dbde0a62ae84f5c1ff272adb901.20dd651d
Call-ID: 8956e785-1905-123c-24bb-e4aaeae9dd8b
CSeq: 62865320 ACK
Content-Length: 0


 5(6) ERROR: <core> [core/kemi.c:96]: sr_kemi_core_err(): ksr_sipdump_event 1--------- sipdump:msg
INVITE sip:+437200101011@sip.example.org SIP/2.0
Via: SIP/2.0/UDP 192.168.0.199:40867;rport;branch=z9hG4bKvB942Z25j6t6Q
Max-Forwards: 70
From: <sip:myself@sip.example.org>;tag=vmjX7H12KrH1B
To: <sip:+437200101011@sip.example.org>
Call-ID: 8956e785-1905-123c-24bb-e4aaeae9dd8b
CSeq: 62865321 INVITE
Contact: <sip:myself@sip.example.org>
User-Agent: calls sofia-sip/1.13.12
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, PRACK, MESSAGE, SUBSCRIBE, NOTIFY, REFER, UPDATE
Supported: timer, 100rel, replaces, gruu, outbound
Proxy-Authorization: Digest username="myself", realm="example.int", nonce="Y9QB/GPUANBJum6LTOLsDnjaSLKc/8o1A1zk1oUtFXzlFe/OfiMEAg==", algorithm=MD5, uri="sip:+437200101011@sip.example.org", response="da2f40487bb63329105222dab911d9bd"
Content-Type: application/sdp
Content-Disposition: session
Content-Length: 240

v=0
o=- 9163509233734166984 5909793187606445082 IN IP4 192.168.0.199
s=-
c=IN IP4 22.222.222.222
t=0 0
m=audio 43264 RTP/AVP 9 8 0 3
a=rtpmap:9 G722/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:3 GSM/8000
a=rtcp:33730

 5(6) ERROR: <core> [core/kemi.c:96]: sr_kemi_core_err(): ENUM RESULT 1 :RURI sip:enum-test@sip.nemox.net
 5(6) ERROR: <core> [core/kemi.c:96]: sr_kemi_core_err(): ksr_sipdump_event 1--------- sipdump:msg
SIP/2.0 100 trying -- your call is important to us
Via: SIP/2.0/UDP 192.168.0.199:40867;rport=40867;branch=z9hG4bKvB942Z25j6t6Q;received=22.222.222.222
From: <sip:myself@sip.example.org>;tag=vmjX7H12KrH1B
To: <sip:+437200101011@sip.example.org>
Call-ID: 8956e785-1905-123c-24bb-e4aaeae9dd8b
CSeq: 62865321 INVITE
Authentication-Info: nextnonce="Y9QB/GPUANBJum6LTOLsDnjaSLKc/8o1A1zk1oUtFXzlFe/OfiMEAg==", qop=, rspauth="d9dd065ba472cbc3f8cc4505dbd2ad60", cnonce="", nc=
Content-Length: 0


 0(1) ALERT: <core> [main.c:774]: handle_sigs(): child process 6 exited by a signal 11
24(25) CRITICAL: <core> [core/pass_fd.c:277]: receive_fd(): EOF on 13
 0(1) ALERT: <core> [main.c:777]: handle_sigs(): core was generated

The full backtrace is:

#0  0x00000000004867e5 in atomic_cmpxchg_int (var=0x0, old=0, new_v=1) at core/mem/../atomic/atomic_x86.h:224
        ret = 32663
#1  0x0000000000486831 in futex_get (lock=0x0) at core/mem/../futexlock.h:99
        v = 0
        i = 1024
#2  0x0000000000490ce5 in dns_hash_get (name=0x7ffe2446dbc0, type=33, h=0x7ffe2446da90, err=0x7ffe2446da7c) at core/dns_cache.c:673
        e = 0x0
#3  0x00000000004972a7 in dns_get_entry (name=0x7ffe2446dbc0, type=33) at core/dns_cache.c:2001
        h = 608623712
        e = 0x0
        cname_val = {
          s = 0x0,
          len = 5860299
        }
        err = 32766
        rec_cnt = 1
        __func__ = "dns_get_entry"
#4  0x0000000000499289 in dns_srv_get_he (name=0x7ffe2446dbc0, port=0x7ffe2446df1c, flags=0) at core/dns_cache.c:2455
        e = 0x2
        rr = 0x0
        rr_name = {
          s = 0xa3e33d203 <error: Cannot access memory at address 0xa3e33d203>,
          len = 1043567768
        }
        he = 0x0
        now = 611930531
        rr_no = 0 '\000'
#5  0x0000000000597aae in no_naptr_srv_sip_resolvehost (name=0x7ffe2446e100, port=0x7ffe2446df1c, proto=0x7f973a751788 "\001") at core/resolve.c:1599
        srv_proto_list = {{
            proto = 1 '\001',
            proto_pref = 30
          }, {
            proto = 2 '\002',
            proto_pref = 20
          }, {
            proto = 4 '\004',
            proto_pref = 20
          }, {
            proto = 3 '\003',
            proto_pref = 10
          }, {
            proto = 0 '\000',
            proto_pref = 0
          }, {
            proto = 13 '\r',
            proto_pref = 1
          }, {
            proto = 80 'P',
            proto_pref = 319
          }}
        he = 0x0
        ip = 0x0
        srv_name = {
          s = 0x929320 <tmp_srv> "_sip._udp.sip.nemox.net",
          len = 23
        }
        tmp_srv = "_sip._udp.sip.nemox.net", '\000' <repeats 232 times>
        i = 0
        list_len = 4
        __func__ = "no_naptr_srv_sip_resolvehost"
#6  0x0000000000598333 in naptr_sip_resolvehost (name=0x7ffe2446e100, port=0x7ffe2446df1c, proto=0x7f973a751788 "\001") at core/resolve.c:1675
        he = 0x0
        ip = 0x0
        tmp = "sip.nemox.net", '\000' <repeats 242 times>
        l = 0x0
        naptr_head = 0x0
        n_proto = 0 '\000'
        srv_name = {
          s = 0x7f97390fee12 <sr_kemi_lua_exec_func_514> "UH\211\345H\203\354\020H\211}\370H\213E\370\276\002\002",
          len = 1051642410
        }
        tried_bmp = 0
        origproto = 0 '\000'
        __func__ = "naptr_sip_resolvehost"
#7  0x00000000005983c6 in _sip_resolvehost (name=0x7ffe2446e100, port=0x7ffe2446df1c, proto=0x7f973a751788 "\001") at core/resolve.c:1707
        res = 0x0
#8  0x000000000049943c in dns_srv_sip_resolvehost (name=0x7ffe2446e100, port=0x7ffe2446df1c, proto=0x7f973a751788 "\001") at core/dns_cache.c:2516
        he = 0x7f9739119c91 <luaD_callnoyield+449>
        ip = 0x7f97390fca97 <sr_kemi_lua_exec_func_221>
        tmp = '\000' <repeats 255 times>
        srv_name = {
          s = 0x1a67740 "\020h\247\001",
          len = 0
        }
        srv_proto = 0 '\000'
        __func__ = "dns_srv_sip_resolvehost"
#9  0x000000000049b3de in dns_sip_resolvehost (name=0x7ffe2446e100, port=0x7ffe2446df1c, proto=0x7f973a751788 "\001") at core/dns_cache.c:2738
No locals.
#10 0x000000000059846b in sip_hostport2su (su=0x7f973a751700, name=0x7ffe2446e100, port=5060, proto=0x7f973a751788 "\001") at core/resolve.c:1727
        he = 0x7f973e33d2be
        __func__ = "sip_hostport2su"
#11 0x00007f9739efdff0 in uri2dst2 (dns_h=0x7f973a751888, dst=0x7f973a7516f8, force_send_socket=0x0, sflags=..., uri=0x7f973e3390d0, proto=0) at /git/voip/kamailio/src/modules/tm/ut.h:308
        parsed_uri = {
          user = {
            s = 0x7f973e33d2b4 "enum-test@sip.nemox.net",
            len = 9
          },
          passwd = {
            s = 0x0,
            len = 0
          },
          host = {
            s = 0x7f973e33d2be "sip.nemox.net",
            len = 13
          },
          port = {
            s = 0x0,
            len = 0
          },
          params = {
            s = 0x0,
            len = 0
          },
          sip_params = {
            s = 0x0,
            len = 0
          },
          headers = {
            s = 0x0,
            len = 0
          },
          port_no = 0,
          proto = 0,
          type = SIP_URI_T,
          flags = 0,
          transport = {
            s = 0x0,
            len = 0
          },
          ttl = {
            s = 0x0,
            len = 0
          },
          user_param = {
            s = 0x0,
            len = 0
          },
          maddr = {
            s = 0x0,
            len = 0
          },
          method = {
            s = 0x0,
            len = 0
          },
          lr = {
            s = 0x0,
            len = 0
          },
          r2 = {
            s = 0x0,
            len = 0
          },
          gr = {
            s = 0x0,
            len = 0
          },
          transport_val = {
            s = 0x0,
            len = 0
          },
          ttl_val = {
            s = 0x0,
            len = 0
          },
          user_param_val = {
            s = 0x0,
            len = 0
          },
          maddr_val = {
            s = 0x0,
            len = 0
          },
          method_val = {
            s = 0x0,
            len = 0
          },
          lr_val = {
            s = 0x0,
            len = 0
          },
          r2_val = {
            s = 0x0,
            len = 0
          },
          gr_val = {
            s = 0x0,
            len = 0
          }
        }
        uri_proto = PROTO_NONE
        host = 0x7ffe2446e100
        ip_found = 0
        to = {
          s = {
            sa_family = 57744,
            sa_data = "F$\376\177\000\000\211\216\0169\227\177\000"
          },
          sin = {
            sin_family = 57744,
            sin_port = 9286,
            sin_addr = {
              s_addr = 32766
            },
            sin_zero = "\211\216\0169\227\177\000"
          },
          sin6 = {
            sin6_family = 57744,
            sin6_port = 9286,
            sin6_flowinfo = 32766,
            sin6_addr = {
              __in6_u = {
                __u6_addr8 = "\211\216\0169\227\177\000\000\001\000\000\000\000\000\000",
                __u6_addr16 = {36489, 14606, 32663, 0, 1, 0, 0, 0},
                __u6_addr32 = {957255305, 32663, 1, 0}
              }
            },
            sin6_scope_id = 1042640912
          },
          sas = {
            ss_family = 57744,
            __ss_padding = "F$\376\177\000\000\211\216\0169\227\177\000\000\001\000\000\000\000\000\000\000\020p%>\227\177\000\000\260\340F$\376\177\000\000\304\311K", '\000' <repeats 37 times>, "\020;\v:\227\177\000\000\360\2153>\227\177\000\000Px\246\001\000\000\000\000\230\2243>\227\177\000\000\002\000\000\000\000\000\000",
            __ss_align = 27947488
          }
        }
        err = 32766
        __func__ = "uri2dst2"
#12 0x00007f9739f00878 in prepare_new_uac (t=0x7f973a751408, i_req=0x7f973e338df0, branch=0, uri=0x7ffe2446e490, path=0x7ffe2446e470, next_hop=0x7f973e3390d0, fsocket=0x0, snd_flags=..., fproto=0, flags=2, instance=0x7ffe2446e460, ruid=0x7ffe2446e450, location_ua=0x7ffe2446e440) at t_fwd.c:447
        shbuf = 0x0
        add_rm_backup = 0x7f973e33b288
        body_lumps_backup = 0x0
        parsed_uri_bak = {
          user = {
            s = 0x7f973e33a634 "enum-test@sip.nemox.net",
            len = 9
          },
          passwd = {
            s = 0x0,
            len = 0
          },
          host = {
            s = 0x7f973e33a63e "sip.nemox.net",
            len = 13
          },
          port = {
            s = 0x0,
            len = 0
          },
          params = {
            s = 0x0,
            len = 0
          },
          sip_params = {
            s = 0x0,
            len = 0
          },
          headers = {
            s = 0x0,
            len = 0
          },
          port_no = 0,
          proto = 0,
          type = SIP_URI_T,
          flags = 0,
          transport = {
            s = 0x0,
            len = 0
          },
          ttl = {
            s = 0x0,
            len = 0
          },
          user_param = {
            s = 0x0,
            len = 0
          },
          maddr = {
            s = 0x0,
            len = 0
          },
          method = {
            s = 0x0,
            len = 0
          },
          lr = {
            s = 0x0,
            len = 0
          },
          r2 = {
            s = 0x0,
            len = 0
          },
          gr = {
            s = 0x0,
            len = 0
          },
          transport_val = {
            s = 0x0,
            len = 0
          },
          ttl_val = {
            s = 0x0,
            len = 0
          },
          user_param_val = {
            s = 0x0,
            len = 0
          },
          maddr_val = {
            s = 0x0,
            len = 0
          },
          method_val = {
            s = 0x0,
            len = 0
          },
          lr_val = {
            s = 0x0,
            len = 0
          },
          r2_val = {
            s = 0x0,
            len = 0
          },
          gr_val = {
            s = 0x0,
            len = 0
          }
        }
        ret = -1
        len = 32663
        parsed_uri_ok_bak = 1
        free_new_uri = 1
        msg_uri_bak = {
          s = 0x7f973e33a630 "sip:enum-test@sip.nemox.net",
          len = 27
        }
        dst_uri_bak = {
          s = 0x0,
          len = 0
        }
        dst_uri_backed_up = 1
        path_bak = {
          s = 0x0,
          len = 0
        }
        free_path = 1
        instance_bak = {
          s = 0x0,
          len = 0
        }
        free_instance = 1
        ruid_bak = {
          s = 0x0,
          len = 0
        }
        free_ruid = 1
        ua_bak = {
          s = 0x0,
          len = 0
        }
        free_ua = 1
        backup_route_type = 1
        test_dst = 23
        fwd_snd_flags_bak = {
          f = 0,
          blst_imask = 0
        }
        rpl_snd_flags_bak = {
          f = 1,
          blst_imask = 0
        }
        force_send_socket_bak = 0x0
        dst = 0x7f973a7516f8
        ctx = {
          rec_lev = 0,
          run_flags = 0,
          last_retcode = 0,
          jmp_env = {{
              __jmpbuf = {140729507046528, 107383054981, 140729507046336, 7983668, 140729507046712, 140729507046688, 0, 0},
              __mask_was_saved = 0,
              __saved_mask = {
                __val = {0, 0, 0, 0, 1016, 2510101137099545603, 12909040900923746448, 140729507046448, 7983053, 3689621524717335394, 0, 140729507046488, 140729507046688, 8, 8872581, 4179003179399}
              }
            }}
        }
        bctx = 0x0
        keng = 0x913440 <_sr_kemi_eng_list>
        __func__ = "prepare_new_uac"
#13 0x00007f9739f058f0 in add_uac (t=0x7f973a751408, request=0x7f973e338df0, uri=0x7f973e3390d0, next_hop=0x7f973e3390d0, path=0x7f973e339498, proxy=0x0, fsocket=0x0, snd_flags=..., proto=0, flags=2, instance=0x7f973e3394a8, ruid=0x7f973e3394c0, location_ua=0x7f973e3394d0) at t_fwd.c:814
        ret = 0
        branch = 0
        __func__ = "add_uac"
#14 0x00007f9739f0f73f in t_forward_nonack (t=0x7f973a751408, p_msg=0x7f973e338df0, proxy=0x0, proto=0) at t_fwd.c:1694
        branch_ret = 0
        lowest_ret = -1
        added_branches = 0
        first_branch = 0
        i = 32766
        t_invite = 0x7f973e33c570
        success_branch = 608627136
        try_new = 1
        lock_replies = 939792
        backup_bflags = 0
        obranch = {
          uri = {
            s = 0x1f600000000 <error: Cannot access memory at address 0x1f600000000>,
            len = 27594632
          },
          dst_uri = {
            s = 0x1 <error: Cannot access memory at address 0x1>,
            len = 27947488
          },
          q = 27687040,
          path = {
            s = 0x7f97390fca97 <sr_kemi_lua_exec_func_221> "UH\211\345H\203\354\020H\211}\370H\213E\370\276", <incomplete sequence \335>,
            len = 608627072
          },
          flags = 972537629,
          force_socket = 0x1,
          ruid = {
            s = 0x7ffe2446e950 "",
            len = 608627120
          },
          instance = {
            s = 0x6400000001 <error: Cannot access memory at address 0x6400000001>,
            len = 1043566064
          },
          location_ua = {
            s = 0x7f973a751408 "p\344\032:\227\177",
            len = 8388608
          },
          otcpid = 7449488
        }
        __func__ = "t_forward_nonack"
#15 0x00007f9739ef6bc5 in t_relay_to (p_msg=0x7f973e338df0, proxy=0x0, proto=0, replicate=0) at t_funcs.c:332
        ret = 0
        new_tran = 1
        t = 0x7f973a751408
        dst = {
          send_sock = 0x7ffe2446eb80,
          to = {
            s = {
              sa_family = 50040,
              sa_data = "3>\227\177\000\000\000\000\000\000\000\000\000"
            },
            sin = {
              sin_family = 50040,
              sin_port = 15923,
              sin_addr = {
                s_addr = 32663
              },
              sin_zero = "\000\000\000\000\000\000\000"
            },
            sin6 = {
              sin6_family = 50040,
              sin6_port = 15923,
              sin6_flowinfo = 32663,
              sin6_addr = {
                __in6_u = {
                  __u6_addr8 = "\000\000\000\000\000\000\000\000\020p%>\227\177\000",
                  __u6_addr16 = {0, 0, 0, 0, 28688, 15909, 32663, 0},
                  __u6_addr32 = {0, 0, 1042640912, 32663}
                }
              },
              sin6_scope_id = 27687040
            },
            sas = {
              ss_family = 50040,
              __ss_padding = "3>\227\177\000\000\000\000\000\000\000\000\000\000\020p%>\227\177\000\000\200x\246\001\000\000\000\000\320\377\377\377\377\377\377\377\000\000\000\000\000\000\000\000\300c\252\001\000\000\000\000\200x\246\001\000\000\000\000\360\273\0179\227\177\000\000\200\353F$\376\177\000\000\257\363G\000\000\000\000\000\000\000\000\000S\003\000\000\360\2153>\227\177", '\000' <repeats 14 times>, "\022\000\000",
              __ss_align = 140287560368784
            }
          },
          id = 1043579664,
          send_flags = {
            f = 32663,
            blst_imask = 0
          },
          proto = 0 '\000',
          proto_pad0 = 0 '\000',
          proto_pad1 = 0
        }
        port = 0
        host = {
          s = 0x0,
          len = 1043579608
        }
        comp = 0
        __func__ = "t_relay_to"
#16 0x00007f9739f48a33 in _w_t_relay_to (p_msg=0x7f973e338df0, proxy=0x0, force_proto=0) at tm.c:1764
        t = 0x7ffe2446ec30
        res = 3
        __func__ = "_w_t_relay_to"
#17 0x00007f9739f51dec in ki_t_relay (msg=0x7f973e338df0) at tm.c:2917
No locals.
#18 0x00007f97390eb94c in sr_kemi_lua_exec_func_ex (L=0x1a50f88, ket=0x7f9739ff5be0 <tm_kemi_exports>, pdelta=0) at app_lua_api.c:1022
        i = 1
        argc = 0
        ret = 1
        fname = 0x7f9739ff5bf0 <tm_kemi_exports+16>
        mname = 0x7f9739ff5be0 <tm_kemi_exports>
        vps = {{
            n = 27739704,
            s = {
              s = 0x1a74638 "ksr_failure_manage",
              len = 18
            }
          }, {
            n = 0,
            s = {
              s = 0x0,
              len = 0
            }
          }, {
            n = 0,
            s = {
              s = 0x0,
              len = 0
            }
          }, {
            n = 0,
            s = {
              s = 0x0,
              len = 0
            }
          }, {
            n = 0,
            s = {
              s = 0x0,
              len = 0
            }
          }, {
            n = 0,
            s = {
              s = 0x0,
              len = 0
            }
          }}
        env_L = 0x7f9739175a00 <_sr_L_env>
        xret = 0x7f973a047580 <_sr_kemi_kx_xval>
        __func__ = "sr_kemi_lua_exec_func_ex"
#19 0x00007f97390f337e in sr_kemi_lua_exec_func (L=0x1a50f88, eidx=221) at app_lua_api.c:1706
        ket = 0x7f9739ff5be0 <tm_kemi_exports>
        ret = 1
        tvb = {
          tv_sec = 0,
          tv_usec = 0
        }
        tve = {
          tv_sec = 0,
          tv_usec = 0
        }
        tz = {
          tz_minuteswest = 1052892288,
          tz_dsttime = 32663
        }
        tdiff = 27594832
        dinfo = {
          event = 1043568344,
          name = 0x7f973e339980 <incomplete sequence \350>,
          namewhat = 0x7ffe2446f03e "",
          what = 0x3000000018 <error: Cannot access memory at address 0x3000000018>,
          source = 0x7ffe2446efa0 "\200x\246\001",
          srclen = 140729507049184,
          currentline = 8989040,
          linedefined = 0,
          lastlinedefined = 73,
          nups = 0 '\000',
          nparams = 0 '\000',
          isvararg = 0 '\000',
          istailcall = 0 '\000',
          ftransfer = 4176,
          ntransfer = 421,
          short_src = "\000\000\000\000\004\000\000\000\000\000\000\000I\000\000\000\000\000\000\000\204\275\256>\227\177\000\000\300\a\000\000\000\000\000\000@\000\000\000\000\000\000\000\005\000\000\000\000\000\000\000P\020\245\001\000\000\000",
          i_ci = 0x1a50f88
        }
        __func__ = "sr_kemi_lua_exec_func"
#20 0x00007f97390fcab4 in sr_kemi_lua_exec_func_221 (L=0x1a50f88) at app_lua_kemi_export.c:1813
No locals.
#21 0x00007f97391193c1 in luaD_precall () from /var/lib/containers/storage/overlay/1ba9d537e5be2b3a47b220bd68cdb6646cd0a1f4ebb83a234c8bcc2324ca5f3f/merged/lib64/kamailio/modules/app_lua.so
No symbol table info available.
#22 0x00007f973912d4cb in luaV_execute () from /var/lib/containers/storage/overlay/1ba9d537e5be2b3a47b220bd68cdb6646cd0a1f4ebb83a234c8bcc2324ca5f3f/merged/lib64/kamailio/modules/app_lua.so
No symbol table info available.
#23 0x00007f9739119c91 in luaD_callnoyield () from /var/lib/containers/storage/overlay/1ba9d537e5be2b3a47b220bd68cdb6646cd0a1f4ebb83a234c8bcc2324ca5f3f/merged/lib64/kamailio/modules/app_lua.so
No symbol table info available.
#24 0x00007f973911802a in luaD_rawrunprotected () from /var/lib/containers/storage/overlay/1ba9d537e5be2b3a47b220bd68cdb6646cd0a1f4ebb83a234c8bcc2324ca5f3f/merged/lib64/kamailio/modules/app_lua.so
No symbol table info available.
#25 0x00007f973911a1e0 in luaD_pcall () from /var/lib/containers/storage/overlay/1ba9d537e5be2b3a47b220bd68cdb6646cd0a1f4ebb83a234c8bcc2324ca5f3f/merged/lib64/kamailio/modules/app_lua.so
No symbol table info available.
#26 0x00007f97391143df in lua_pcallk () from /var/lib/containers/storage/overlay/1ba9d537e5be2b3a47b220bd68cdb6646cd0a1f4ebb83a234c8bcc2324ca5f3f/merged/lib64/kamailio/modules/app_lua.so
No symbol table info available.
#27 0x00007f97390e7f0d in app_lua_run_ex (msg=0x7f973e338df0, func=0x7f973914d598 "ksr_request_route", p1=0x0, p2=0x0, p3=0x0, emode=1) at app_lua_api.c:773
        n = 0
        ret = 0
        txt = {
          s = 0x7ffe2446f520 "\020\370F$\376\177",
          len = 5783320
        }
        bmsg = 0x0
        ltop = 36
        __func__ = "app_lua_run_ex"
#28 0x00007f9739106f07 in sr_kemi_config_engine_lua (msg=0x7f973e338df0, rtype=1, rname=0x0, rparam=0x0) at app_lua_mod.c:119
        ret = -1
        __func__ = "sr_kemi_config_engine_lua"
#29 0x00000000005048bf in sr_kemi_route (keng=0x913440 <_sr_kemi_eng_list>, msg=0x7f973e338df0, rtype=1, ename=0x0, edata=0x0) at core/kemi.c:3784
        sfbk = 0
        ret = 1054122048
#30 0x000000000058890a in receive_msg (buf=0x9b22a0 <buf> "INVITE sip:+437200101011@sip.example.org SIP/2.0\r\nVia: SIP/2.0/UDP 192.168.0.199:40867;TH=div;rport;branch=z9hG4bKvB942Z25j6t6Q\r\nMax-Forwards: 69\r\nFrom: <sip:myself@sip.example.org>;tag=vmjX7H12KrH1B\r\nTo: <sip:+437200101011@sip.example.org>\r\nCall-ID: 8956e785-1905-123c-24bb-e4aaeae9dd8b\r\nCSeq: 62865321 INVITE\r\nContact: <sip:myself@sip.example.org>\r\nUser-Agent: calls sofia-sip/1.13.12\r\nAllow: INVITE, ACK, BYE, CANCEL, OPTIONS, PRACK, MESSAGE, SUBSCRIBE, NOTIFY, REFER, UPDATE\r\nSupported: timer, 100rel, replaces, gruu, outbound\r\nProxy-Authorization: Digest username=\"myself\", realm=\"example.int\", nonce=\"Y9QB/GPUANBJum6LTOLsDnjaSLKc/8o1A1zk1oUtFXzlFe/OfiMEAg==\", algorithm=MD5, uri=\"sip:+437200101011@sip.example.org\", response=\"da2f40487bb63329105222dab911d9bd\"\r\nContent-Type: application/sdp\r\nContent-Disposition: session\r\nContent-Length: 240\r\nTH: dih\r\n\r\nv=0\r\no=- 9163509233734166984 5909793187606445082 IN IP4 192.168.0.199\r\ns=-\r\nc=IN IP4 22.222.222.222\r\nt=0 0\r\nm=audio 43264 RTP/AVP 9 8 0 3\r\na=rtpmap:9 G722/8000\r\na=rtpmap:8 PCMA/8000\r\na=rtpmap:0 PCMU/8000\r\na=rtpmap:3 GSM/8000\r\na=rtcp:33730\r\n", len=1093, rcv_info=0x7ffe2446fae0) at core/receive.c:502
        msg = 0x7f973e338df0
        ctx = {
          rec_lev = 256,
          run_flags = 16777216,
          last_retcode = 0,
          jmp_env = {{
              __jmpbuf = {1099511627776, 512, 0, 0, 0, 0, 0, 0},
              __mask_was_saved = 0,
              __saved_mask = {
                __val = {0, 0, 0, 0, 0, 0, 0, 4294967296, 1225543208507932942, 33554432, 3298534883584, 72057594037928192, 72057594037927936, 1099511627776, 512, 0}
              }
            }}
        }
        bctx = 0x0
        ret = 0
        tvb = {
          tv_sec = 0,
          tv_usec = 0
        }
        tve = {
          tv_sec = 0,
          tv_usec = 0
        }
        diff = 0
        inb = {
          s = 0x9b22a0 <buf> "INVITE sip:+437200101011@sip.example.org SIP/2.0\r\nVia: SIP/2.0/UDP 192.168.0.199:40867;TH=div;rport;branch=z9hG4bKvB942Z25j6t6Q\r\nMax-Forwards: 69\r\nFrom: <sip:myself@sip.example.org>;tag=vmjX7H12KrH1B\r\nTo: <sip:+437200101011@sip.example.org>\r\nCall-ID: 8956e785-1905-123c-24bb-e4aaeae9dd8b\r\nCSeq: 62865321 INVITE\r\nContact: <sip:myself@sip.example.org>\r\nUser-Agent: calls sofia-sip/1.13.12\r\nAllow: INVITE, ACK, BYE, CANCEL, OPTIONS, PRACK, MESSAGE, SUBSCRIBE, NOTIFY, REFER, UPDATE\r\nSupported: timer, 100rel, replaces, gruu, outbound\r\nProxy-Authorization: Digest username=\"myself\", realm=\"example.int\", nonce=\"Y9QB/GPUANBJum6LTOLsDnjaSLKc/8o1A1zk1oUtFXzlFe/OfiMEAg==\", algorithm=MD5, uri=\"sip:+437200101011@sip.example.org\", response=\"da2f40487bb63329105222dab911d9bd\"\r\nContent-Type: application/sdp\r\nContent-Disposition: session\r\nContent-Length: 240\r\nTH: dih\r\n\r\nv=0\r\no=- 9163509233734166984 5909793187606445082 IN IP4 192.168.0.199\r\ns=-\r\nc=IN IP4 22.222.222.222\r\nt=0 0\r\nm=audio 43264 RTP/AVP 9 8 0 3\r\na=rtpmap:9 G722/8000\r\na=rtpmap:8 PCMA/8000\r\na=rtpmap:0 PCMU/8000\r\na=rtpmap:3 GSM/8000\r\na=rtcp:33730\r\n",
          len = 1093
        }
        netinfo = {
          data = {
            s = 0x0,
            len = 0
          },
          bufsize = 0,
          rcv = 0x0,
          dst = 0x0
        }
        keng = 0x913440 <_sr_kemi_eng_list>
        evp = {
          data = 0x7ffe2446f630,
          obuf = {
            s = 0x0,
            len = 0
          },
          rcv = 0x7ffe2446fae0,
          dst = 0x0,
          req = 0x0,
          rpl = 0x0,
          rplcode = 0,
          mode = 0
        }
        cidlockidx = 0
        cidlockset = 0
        errsipmsg = 0
        exectime = 0
        __func__ = "receive_msg"
#31 0x00000000006cad81 in udp_rcv_loop () at core/udp_server.c:544
        len = 1077
        buf = "INVITE sip:+437200101011@sip.example.org SIP/2.0\r\nVia: SIP/2.0/UDP 192.168.0.199:40867;TH=div;rport;branch=z9hG4bKvB942Z25j6t6Q\r\nMax-Forwards: 69\r\nFrom: <sip:myself@sip.example.org>;tag=vmjX7H12KrH1B\r\nTo: <sip:+437200101011@sip.example.org>\r\nCall-ID: 8956e785-1905-123c-24bb-e4aaeae9dd8b\r\nCSeq: 62865321 INVITE\r\nContact: <sip:myself@sip.example.org>\r\nUser-Agent: calls sofia-sip/1.13.12\r\nAllow: INVITE, ACK, BYE, CANCEL, OPTIONS, PRACK, MESSAGE, SUBSCRIBE, NOTIFY, REFER, UPDATE\r\nSupported: timer, 100rel, replaces, gruu, outbound\r\nProxy-Authorization: Digest username=\"myself\", realm=\"example.int\", nonce=\"Y9QB/GPUANBJum6LTOLsDnjaSLKc/8o1A1zk1oUtFXzlFe/OfiMEAg==\", algorithm=MD5, uri=\"sip:+437200101011@sip.example.org\", response=\"da2f40487bb63329105222dab911d9bd\"\r\nContent-Type: application/sdp\r\nContent-Disposition: session\r\nContent-Length: 240\r\nTH: dih\r\n\r\nv=0\r\no=- 9163509233734166984 5909793187606445082 IN IP4 192.168.0.199\r\ns=-\r\nc=IN IP4 22.222.222.222\r\nt=0 0\r\nm=audio 43264 RTP/AVP 9 8 0 3\r\na=rtpmap:9 G722/8000\r\na=rtpmap:8 PCMA/8000\r\na=rtpmap:0 PCMU/8000\r\na=rtpmap:3 GSM/8000\r\na=rtcp:33730\r\n", '\000' <repeats 64442 times>
        tmp = 0x13a3d9090 <error: Cannot access memory at address 0x13a3d9090>
        fromaddr = 0x7f973e338ba8
        fromaddrlen = 16
        rcvi = {
          src_ip = {
            af = 2,
            len = 4,
            u = {
              addrl = {2576512599, 0},
              addr32 = {2576512599, 0, 0, 0},
              addr16 = {30295, 39314, 0, 0, 0, 0, 0, 0},
              addr = "Wv\222\231", '\000' <repeats 11 times>
            }
          },
          dst_ip = {
            af = 2,
            len = 4,
            u = {
              addrl = {1317948560, 0},
              addr32 = {1317948560, 0, 0, 0},
              addr16 = {19600, 20110, 0, 0, 0, 0, 0, 0},
              addr = "\220L\216N", '\000' <repeats 11 times>
            }
          },
          src_port = 40867,
          dst_port = 5060,
          proto_reserved1 = 0,
          proto_reserved2 = 0,
          src_su = {
            s = {
              sa_family = 2,
              sa_data = "\237\243Wv\222\231\000\000\000\000\000\000\000"
            },
            sin = {
              sin_family = 2,
              sin_port = 41887,
              sin_addr = {
                s_addr = 2576512599
              },
              sin_zero = "\000\000\000\000\000\000\000"
            },
            sin6 = {
              sin6_family = 2,
              sin6_port = 41887,
              sin6_flowinfo = 2576512599,
              sin6_addr = {
                __in6_u = {
                  __u6_addr8 = '\000' <repeats 15 times>,
                  __u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0},
                  __u6_addr32 = {0, 0, 0, 0}
                }
              },
              sin6_scope_id = 0
            },
            sas = {
              ss_family = 2,
              __ss_padding = "\237\243Wv\222\231", '\000' <repeats 111 times>,
              __ss_align = 0
            }
          },
          bind_address = 0x7f973e2e7768,
          rflags = 0,
          proto = 1 '\001',
          proto_pad0 = 0 '\000',
          proto_pad1 = 0
        }
        evp = {
          data = 0x0,
          obuf = {
            s = 0x0,
            len = 0
          },
          rcv = 0x0,
          dst = 0x0,
          req = 0x0,
          rpl = 0x0,
          rplcode = 0,
          mode = 0
        }
        printbuf = "\000\000\000\000\000\000\000\000\270\003G$\376\177\000\000\370\235\216\000\000\000\000\000@\240\324>\227\177\000\000\340\370F$\376\177\000\000D\204\0209\227\177\000\000\370\235\216\000\000\000\000\000@\240\324>\005\000\000\000\260\371F$\376\177\000\000\263\372b", '\000' <repeats 57 times>, "\005\000\000\000P\2210>\227\177", '\000' <repeats 90 times>, "\274\202=:\227\177\000\000\000\000\000\000\004\000\000\000\260-\205\000\000\000\000\000\370\235\216\000\000\000\000\000@\240\324>\005\000\000\000\200\372F$\376\177\000\000\263\372b", '\000' <repeats 13 times>, "0^\235\000\000\000\000\000\000^\235\000\000\000\000\000\230g\235\000\000\000\000\000K\306[\302!\307S\354\230\"7(ɘR\354\263ƚ\316\005\000\000\000\350\2260>\227\177\000\000 ^\235\000\000\000\000\000\230g\235\000\000\000\000\000\031\216\n\274\001\000\000\000@h\235\000\000\000\000\000P\372F$\376\177\000\000\240h\235\000\000\000\000\000\240g\235\000\000\000\000\000\000^\235\000\000\000\000\000p\372F$\376\177\000\000\235\275y\000\000\000\000\000p\372F$\376\177\000\000\274\202=:\227\177\000\000\000\000\000\000\000\000\000\000\270\003G$\376\177\000\000\370\235\216\000\000\000\000\000@\240\324>\227\177\000\0000\373F$\376\177\000\000\250\002c\000\000\000\000\000\320\372F$\376\177\000\000\213\305y\000\000\000\000"
        i = -1
        j = 41600
        l = 5
        __func__ = "udp_rcv_loop"
#32 0x000000000042d3af in main_loop () at main.c:1722
        i = 4
        pid = 0
        si = 0x7f973e2e7768
        si_desc = "udp receiver child=4 sock=111.11.111.11:5060\000\000d\000p\375F$\376\177\000\000\000\000\000\000\000\000\000\000\200\375F$\376\177\000\000s\300\3229\227\177\000\000\020\376F$\376\177\000\000\v\006\3239\227\177\000\000`\375F$\376\177\000\0001\rp\000\000\000\000\000\320/\203\000\000\000\000\000\001\000\000\000k\000\000"
        nrprocs = 8
        woneinit = 1
        __func__ = "main_loop"
#33 0x00000000004390be in main (argc=3, argv=0x7ffe24470398) at main.c:3078
        cfg_stream = 0x1931380
        c = -1
        r = 0
        tmp = 0x0
        tmp_len = 0
        port = 0
        proto = 0
        ahost = 0x0
        aport = 0
        options = 0x8081f8 ":f:cm:M:dVIhEeb:l:L:n:vKrRDTN:W:w:t:u:g:P:G:SQ:O:a:A:x:X:Y:"
        ret = -1
        seed = 3092184453
        rfd = 4
        debug_save = 0
        debug_flag = 0
        dont_fork_cnt = 2
        n_lst = 0x0
        p = 0x0
        st = {
          st_dev = 65025,
          st_ino = 3424267,
          st_nlink = 3,
          st_mode = 16895,
          st_uid = 65534,
          st_gid = 65534,
          __pad0 = 0,
          st_rdev = 0,
          st_size = 4096,
          st_blksize = 4096,
          st_blocks = 8,
          st_atim = {
            tv_sec = 1674835346,
            tv_nsec = 294486590
          },
          st_mtim = {
            tv_sec = 1674837962,
            tv_nsec = 574996365
          },
          st_ctim = {
            tv_sec = 1674837962,
            tv_nsec = 574996365
          },
          __glibc_reserved = {0, 0, 0}
        }
        tbuf = "D\377F$\376\177", '\000' <repeats 18 times>, "hq\247>\227\177\000\000\200\374\245>\227\177\000\000\020\000G$\376\177\000\000\b\000G$\376\177\000\000W\301\000\000\000\000\000\000``\321>\227\177\000\000\005", '\000' <repeats 23 times>, "\210\266\324>\227\177\000\000\000p\321>\227\177\000\000\342z\321>\227\177\000\000f\024\322>\227\177\000\000\260إ>", '\000' <repeats 12 times>, "\260Z\321>\227\177\000\0008^\321>\227\177\000\000\344U0\000\000\000\000\000hq\247>\227\177\000\000\220\000G$\376\177\000\000\b\000G$\376\177\000\000\340h\321>\227\177\000\000/\v\322>\227\177\000\000\004\000\000\000\000\000\000\000\340h\321>\227\177\000\000\001", '\000' <repeats 15 times>, "\001\000\000\000\000\000\000\000\260Z\321>\227\177\000\000\260Z\321>\227\177\000\000\001\000\000\000\003\000\000\000\020\000G$\376\177\000\0008^\321>\227\177\000\000\000\000\000\000\000\000\000\000\001", '\000' <repeats 16 times>, "\037G$\376\177\000\000\001\261\324>\227\177\000\000\377\377\377\377\000\000\000\000\330w\321>\227\177\000\000\360\252\324>\227\177\000\0006\027g\n3@\022\000\000\263\324>\227\177\000\000\306\363v\n3@\022\000\005", '\000' <repeats 15 times>, "\260Z\321>\227\177\000\000\017\000\000\000\000\000\000\000\300\321\301>\227\177\000\000\270\003G$\376\177\000\000\370\235\216\000\000\000\000\000@\240\324>\227\177\000\000^n\322>\227\177\000\000\001", '\000' <repeats 15 times>, "\330w\321>\227\177\000\000\340\326\322>\227\177\000\000\000\000\000\000\000\000\000\000\020\003G$\376\177\000\000\003", '\000' <repeats 14 times>
        option_index = 0
        long_options = {{
            name = 0x80a91f "help",
            has_arg = 0,
            flag = 0x0,
            val = 104
          }, {
            name = 0x8054cc "version",
            has_arg = 0,
            flag = 0x0,
            val = 118
          }, {
            name = 0x80a924 "alias",
            has_arg = 1,
            flag = 0x0,
            val = 1024
          }, {
            name = 0x80a92a "subst",
            has_arg = 1,
            flag = 0x0,
            val = 1025
          }, {
            name = 0x80a930 "substdef",
            has_arg = 1,
            flag = 0x0,
            val = 1026
          }, {
            name = 0x80a939 "substdefs",
            has_arg = 1,
            flag = 0x0,
            val = 1027
          }, {
            name = 0x80a943 "server-id",
            has_arg = 1,
            flag = 0x0,
            val = 1028
          }, {
            name = 0x80a94d "loadmodule",
            has_arg = 1,
            flag = 0x0,
            val = 1029
          }, {
            name = 0x80a958 "modparam",
            has_arg = 1,
            flag = 0x0,
            val = 1030
          }, {
            name = 0x80a961 "log-engine",
            has_arg = 1,
            flag = 0x0,
            val = 1031
          }, {
            name = 0x80a96c "debug",
            has_arg = 1,
            flag = 0x0,
            val = 1032
          }, {
            name = 0x80a972 "cfg-print",
            has_arg = 0,
            flag = 0x0,
            val = 1033
          }, {
            name = 0x80a97c "atexit",
            has_arg = 1,
            flag = 0x0,
            val = 1034
          }, {
            name = 0x0,
            has_arg = 0,
            flag = 0x0,
            val = 0
          }}
        __func__ = "main"
quit

111.11.111.11 is the IP address of the server. 22.222.222.222 is my public IP address. 192.168.0.199 is my address behind NAT.
@dilyanpalauzov
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Without topoh, calling +437200101011, resolved by the enum module to sip:enum-test@sip.nemox.net, running under valgrind with

dns_try_ipv6=off
dns_retr_time=2  
use_dns_failover=on 
dns_srv_lb=on
dns_try_naptr=on
dns_cache_flags=1

I get:

  • 1st test case
dns_cache_init=off
use_dns_cache=off

→ CRASHES

  • 2nd test case
dns_cache_init=off
use_dns_cache=on

→ CRASHES

  • 3rd test case
dns_cache_init=on
use_dns_cache=off

→ NO CRASH, Kamailio receives “SIP/2.0 488 Not acceptable here” from the remote server. (This is not a problem of Kamailio)

  • 4th test case
dns_cache_init=on
use_dns_cache=on

→ NO CRASH, Kamailio receives “SIP/2.0 488 Not acceptable here” from the remote server. (This is not a problem of Kamailio)

In each case I have performed the test twice and got consistent results.

@dilyanpalauzov dilyanpalauzov changed the title Crash in dns_cache.c with use_dns_cache=off Crash in dns_cache.c with dns_cache_init=off Feb 1, 2023
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github-actions bot commented Nov 8, 2023

This issue is stale because it has been open 6 weeks with no activity. Remove stale label or comment or this will be closed in 2 weeks.

@github-actions github-actions bot added the Stale label Nov 8, 2023
@github-actions github-actions bot closed this as not planned Won't fix, can't repro, duplicate, stale Nov 23, 2023
@dilyanpalauzov
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Closing valid bugs, without fixing the real problem, results very few current reports for real problems in the software.

This practice leads to the wrong impression, that Kamailio has no known problems, and therefore is good software.

This is misleading and nobody has interest in having such misleading context.

@miconda
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miconda commented Nov 26, 2023

See #3475 (comment) .

@dilyanpalauzov
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/notexpired

@github-actions github-actions bot reopened this Dec 2, 2023
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This issue is stale because it has been open 6 weeks with no activity. Remove stale label or comment or this will be closed in 2 weeks.

@github-actions github-actions bot added the Stale label Jan 14, 2024
@github-actions github-actions bot closed this as not planned Won't fix, can't repro, duplicate, stale Jan 29, 2024
@miconda miconda reopened this Jan 29, 2024
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This issue is stale because it has been open 6 weeks with no activity. Remove stale label or comment or this will be closed in 2 weeks.

@github-actions github-actions bot added the Stale label Mar 12, 2024
@henningw henningw removed the Stale label Mar 12, 2024
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This issue is stale because it has been open 6 weeks with no activity. Remove stale label or comment or this will be closed in 2 weeks.

@github-actions github-actions bot added the Stale label Apr 24, 2024
@henningw henningw removed the Stale label May 8, 2024
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@miconda @dilyanpalauzov @henningw