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[defect]: Segmentation Fault with any listen { type = detail } enabled #5485

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zi0r opened this issue Jan 1, 2025 · 5 comments
Open

[defect]: Segmentation Fault with any listen { type = detail } enabled #5485

zi0r opened this issue Jan 1, 2025 · 5 comments
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defect category: a defect or misbehaviour

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@zi0r
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zi0r commented Jan 1, 2025

What type of defect/bug is this?

Crash or memory corruption (segv, abort, etc...)

How can the issue be reproduced?

Install FreeRADIUS 3.2.6 and enable the buffered-sql (or decoupled-accounting/anything else that adds a detail listener) site by running:
cd /usr/local/etc/raddb/sites-enabled;ln -s ../sites-available/buffered-sql .

Attempt to start FreeRADIUS.

This bug was introduced in the 3.2.6 release--if you reinstall 3.2.5, the same configuration works fine.

Log output from the FreeRADIUS daemon

root@134R-test:/var/log # radiusd -X
FreeRADIUS Version 3.2.6
Copyright (C) 1999-2023 The FreeRADIUS server project and contributors
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE
You may redistribute copies of FreeRADIUS under the terms of the
GNU General Public License
For more information about these matters, see the file named COPYRIGHT
Starting - reading configuration files ...
including dictionary file /usr/local/share/freeradius/dictionary
including dictionary file /usr/local/share/freeradius/dictionary.dhcp
including dictionary file /usr/local/share/freeradius/dictionary.vqp
including dictionary file /usr/local/etc/raddb/dictionary
including configuration file /usr/local/etc/raddb/radiusd.conf
including configuration file /usr/local/etc/raddb/proxy.conf
including configuration file /usr/local/etc/raddb/clients.conf
including files in directory /usr/local/etc/raddb/mods-enabled/
including configuration file /usr/local/etc/raddb/mods-enabled/realm
including configuration file /usr/local/etc/raddb/mods-enabled/dynamic_clients
including configuration file /usr/local/etc/raddb/mods-enabled/passwd
including configuration file /usr/local/etc/raddb/mods-enabled/always
including configuration file /usr/local/etc/raddb/mods-enabled/files
including configuration file /usr/local/etc/raddb/mods-enabled/echo
including configuration file /usr/local/etc/raddb/mods-enabled/ntlm_auth
including configuration file /usr/local/etc/raddb/mods-enabled/utf8
including configuration file /usr/local/etc/raddb/mods-enabled/soh
including configuration file /usr/local/etc/raddb/mods-enabled/linelog
including configuration file /usr/local/etc/raddb/mods-enabled/radutmp
including configuration file /usr/local/etc/raddb/mods-enabled/unpack
including configuration file /usr/local/etc/raddb/mods-enabled/attr_filter
including configuration file /usr/local/etc/raddb/mods-enabled/expiration
including configuration file /usr/local/etc/raddb/mods-enabled/date
including configuration file /usr/local/etc/raddb/mods-enabled/chap
including configuration file /usr/local/etc/raddb/mods-enabled/logintime
including configuration file /usr/local/etc/raddb/mods-enabled/expr
including configuration file /usr/local/etc/raddb/mods-enabled/totp
including configuration file /usr/local/etc/raddb/mods-enabled/preprocess
including configuration file /usr/local/etc/raddb/mods-enabled/pap
including configuration file /usr/local/etc/raddb/mods-enabled/sradutmp
including configuration file /usr/local/etc/raddb/mods-enabled/unix
including configuration file /usr/local/etc/raddb/mods-enabled/exec
including configuration file /usr/local/etc/raddb/mods-enabled/digest
including configuration file /usr/local/etc/raddb/mods-enabled/eap
including configuration file /usr/local/etc/raddb/mods-enabled/replicate
including configuration file /usr/local/etc/raddb/mods-enabled/detail.log
including configuration file /usr/local/etc/raddb/mods-enabled/mschap
including configuration file /usr/local/etc/raddb/mods-enabled/detail
including files in directory /usr/local/etc/raddb/policy.d/
including configuration file /usr/local/etc/raddb/policy.d/abfab-tr
including configuration file /usr/local/etc/raddb/policy.d/cui
including configuration file /usr/local/etc/raddb/policy.d/operator-name
including configuration file /usr/local/etc/raddb/policy.d/filter
including configuration file /usr/local/etc/raddb/policy.d/moonshot-targeted-ids
including configuration file /usr/local/etc/raddb/policy.d/canonicalization
including configuration file /usr/local/etc/raddb/policy.d/dhcp
including configuration file /usr/local/etc/raddb/policy.d/eap
including configuration file /usr/local/etc/raddb/policy.d/debug
including configuration file /usr/local/etc/raddb/policy.d/rfc7542
including configuration file /usr/local/etc/raddb/policy.d/accounting
including configuration file /usr/local/etc/raddb/policy.d/control
including files in directory /usr/local/etc/raddb/sites-enabled/
including configuration file /usr/local/etc/raddb/sites-enabled/buffered-sql
including configuration file /usr/local/etc/raddb/sites-enabled/inner-tunnel
including configuration file /usr/local/etc/raddb/sites-enabled/default
main {
 security {
        allow_core_dumps = no
 }
        name = "radiusd"
        prefix = "/usr/local"
        localstatedir = "/var"
        logdir = "/var/log"
        run_dir = "/var/run/radiusd"
}
main {
        name = "radiusd"
        prefix = "/usr/local"
        localstatedir = "/var"
        sbindir = "/usr/local/sbin"
        logdir = "/var/log"
        run_dir = "/var/run/radiusd"
        libdir = "/usr/local/lib/freeradius-3.2.6"
        radacctdir = "/var/log/radacct"
        hostname_lookups = no
        max_request_time = 30
        proxy_dedup_window = 1
        cleanup_delay = 5
        max_requests = 16384
        postauth_client_lost = no
        pidfile = "/var/run/radiusd/radiusd.pid"
        checkrad = "/usr/local/sbin/checkrad"
        debug_level = 0
        proxy_requests = yes
 log {
        stripped_names = no
        auth = no
        auth_badpass = no
        auth_goodpass = no
        colourise = yes
        msg_denied = "You are already logged in - access denied"
 }
 resources {
 }
 security {
        max_attributes = 200
        reject_delay = 1.000000
        status_server = yes
        require_message_authenticator = "auto"
        limit_proxy_state = "auto"
 }
}
radiusd: #### Loading Realms and Home Servers ####
 proxy server {
        retry_delay = 5
        retry_count = 3
        default_fallback = no
        dead_time = 120
        wake_all_if_all_dead = no
 }
 home_server localhost {
        nonblock = no
        ipaddr = 127.0.0.1
        port = 1812
        type = "auth"
        secret = <<< secret >>>
        response_window = 20.000000
        response_timeouts = 1
        max_outstanding = 65536
        zombie_period = 40
        status_check = "status-server"
        ping_interval = 30
        check_interval = 30
        check_timeout = 4
        num_answers_to_alive = 3
        revive_interval = 120
  limit {
        max_connections = 16
        max_requests = 0
        lifetime = 0
        idle_timeout = 0
  }
  coa {
        irt = 2
        mrt = 16
        mrc = 5
        mrd = 30
  }
 }
 home_server_pool my_auth_failover {
        type = fail-over
        home_server = localhost
 }
 realm example.com {
        auth_pool = my_auth_failover
 }
 realm LOCAL {
 }
radiusd: #### Loading Clients ####
 client localhost {
        ipaddr = 127.0.0.1
        secret = <<< secret >>>
        nas_type = "other"
        proto = "*"
  limit {
        max_connections = 16
        lifetime = 0
        idle_timeout = 30
  }
 }
Shared secret for client localhost is short, and likely can be broken by an attacker.
 client localhost_ipv6 {
        ipv6addr = ::1
        secret = <<< secret >>>
  limit {
        max_connections = 16
        lifetime = 0
        idle_timeout = 30
  }
 }
Shared secret for client localhost_ipv6 is short, and likely can be broken by an attacker.
Debugger not attached
 # Creating Auth-Type = mschap
 # Creating Auth-Type = eap
 # Creating Auth-Type = PAP
 # Creating Auth-Type = CHAP
 # Creating Auth-Type = MS-CHAP
 # Creating Auth-Type = digest
 # Creating Autz-Type = New-TLS-Connection
radiusd: #### Instantiating modules ####
 modules {
  # Loaded module rlm_realm
  # Loading module "IPASS" from file /usr/local/etc/raddb/mods-enabled/realm
  realm IPASS {
        format = "prefix"
        delimiter = "/"
        ignore_default = no
        ignore_null = no
  }
  # Loading module "suffix" from file /usr/local/etc/raddb/mods-enabled/realm
  realm suffix {
        format = "suffix"
        delimiter = "@"
        ignore_default = no
        ignore_null = no
  }
  # Loading module "bangpath" from file /usr/local/etc/raddb/mods-enabled/realm
  realm bangpath {
        format = "prefix"
        delimiter = "!"
        ignore_default = no
        ignore_null = no
  }
  # Loading module "realmpercent" from file /usr/local/etc/raddb/mods-enabled/realm
  realm realmpercent {
        format = "suffix"
        delimiter = "%"
        ignore_default = no
        ignore_null = no
  }
  # Loading module "ntdomain" from file /usr/local/etc/raddb/mods-enabled/realm
  realm ntdomain {
        format = "prefix"
        delimiter = "\"
        ignore_default = no
        ignore_null = no
  }
  # Loaded module rlm_dynamic_clients
  # Loading module "dynamic_clients" from file /usr/local/etc/raddb/mods-enabled/dynamic_clients
  # Loaded module rlm_passwd
  # Loading module "etc_passwd" from file /usr/local/etc/raddb/mods-enabled/passwd
  passwd etc_passwd {
        filename = "/etc/passwd"
        format = "*User-Name:Crypt-Password:"
        delimiter = ":"
        ignore_nislike = no
        ignore_empty = yes
        allow_multiple_keys = no
        hash_size = 100
  }
  # Loaded module rlm_always
  # Loading module "reject" from file /usr/local/etc/raddb/mods-enabled/always
  always reject {
        rcode = "reject"
        simulcount = 0
        mpp = no
  }
  # Loading module "fail" from file /usr/local/etc/raddb/mods-enabled/always
  always fail {
        rcode = "fail"
        simulcount = 0
        mpp = no
  }
  # Loading module "ok" from file /usr/local/etc/raddb/mods-enabled/always
  always ok {
        rcode = "ok"
        simulcount = 0
        mpp = no
  }
  # Loading module "handled" from file /usr/local/etc/raddb/mods-enabled/always
  always handled {
        rcode = "handled"
        simulcount = 0
        mpp = no
  }
  # Loading module "invalid" from file /usr/local/etc/raddb/mods-enabled/always
  always invalid {
        rcode = "invalid"
        simulcount = 0
        mpp = no
  }
  # Loading module "userlock" from file /usr/local/etc/raddb/mods-enabled/always
  always userlock {
        rcode = "userlock"
        simulcount = 0
        mpp = no
  }
  # Loading module "notfound" from file /usr/local/etc/raddb/mods-enabled/always
  always notfound {
        rcode = "notfound"
        simulcount = 0
        mpp = no
  }
  # Loading module "noop" from file /usr/local/etc/raddb/mods-enabled/always
  always noop {
        rcode = "noop"
        simulcount = 0
        mpp = no
  }
  # Loading module "updated" from file /usr/local/etc/raddb/mods-enabled/always
  always updated {
        rcode = "updated"
        simulcount = 0
        mpp = no
  }
  # Loaded module rlm_files
  # Loading module "files" from file /usr/local/etc/raddb/mods-enabled/files
  files {
        filename = "/usr/local/etc/raddb/mods-config/files/authorize"
        acctusersfile = "/usr/local/etc/raddb/mods-config/files/accounting"
        preproxy_usersfile = "/usr/local/etc/raddb/mods-config/files/pre-proxy"
  }
  # Loaded module rlm_exec
  # Loading module "echo" from file /usr/local/etc/raddb/mods-enabled/echo
  exec echo {
        wait = yes
        program = "/bin/echo %{User-Name}"
        input_pairs = "request"
        output_pairs = "reply"
        shell_escape = yes
  }
  # Loading module "ntlm_auth" from file /usr/local/etc/raddb/mods-enabled/ntlm_auth
  exec ntlm_auth {
        wait = yes
        program = "/path/to/ntlm_auth --request-nt-key --domain=MYDOMAIN --username=%{mschap:User-Name} --password=%{User-Password}"
        shell_escape = yes
  }
  # Loaded module rlm_utf8
  # Loading module "utf8" from file /usr/local/etc/raddb/mods-enabled/utf8
  # Loaded module rlm_soh
  # Loading module "soh" from file /usr/local/etc/raddb/mods-enabled/soh
  soh {
        dhcp = yes
  }
  # Loaded module rlm_linelog
  # Loading module "linelog" from file /usr/local/etc/raddb/mods-enabled/linelog
  linelog {
        filename = "/var/log/linelog"
        escape_filenames = no
        syslog_severity = "info"
        permissions = 384
        format = "This is a log message for %{User-Name}"
        reference = "messages.%{%{reply:Packet-Type}:-default}"
  }
  # Loading module "log_accounting" from file /usr/local/etc/raddb/mods-enabled/linelog
  linelog log_accounting {
        filename = "/var/log/linelog-accounting"
        escape_filenames = no
        syslog_severity = "info"
        permissions = 384
        format = ""
        reference = "Accounting-Request.%{%{Acct-Status-Type}:-unknown}"
  }
  # Loaded module rlm_radutmp
  # Loading module "radutmp" from file /usr/local/etc/raddb/mods-enabled/radutmp
  radutmp {
        filename = "/var/log/radutmp"
        username = "%{User-Name}"
        case_sensitive = yes
        check_with_nas = yes
        permissions = 384
        caller_id = yes
  }
  # Loaded module rlm_unpack
  # Loading module "unpack" from file /usr/local/etc/raddb/mods-enabled/unpack
  # Loaded module rlm_attr_filter
  # Loading module "attr_filter.post-proxy" from file /usr/local/etc/raddb/mods-enabled/attr_filter
  attr_filter attr_filter.post-proxy {
        filename = "/usr/local/etc/raddb/mods-config/attr_filter/post-proxy"
        key = "%{Realm}"
        relaxed = no
  }
  # Loading module "attr_filter.pre-proxy" from file /usr/local/etc/raddb/mods-enabled/attr_filter
  attr_filter attr_filter.pre-proxy {
        filename = "/usr/local/etc/raddb/mods-config/attr_filter/pre-proxy"
        key = "%{Realm}"
        relaxed = no
  }
  # Loading module "attr_filter.access_reject" from file /usr/local/etc/raddb/mods-enabled/attr_filter
  attr_filter attr_filter.access_reject {
        filename = "/usr/local/etc/raddb/mods-config/attr_filter/access_reject"
        key = "%{User-Name}"
        relaxed = no
  }
  # Loading module "attr_filter.access_challenge" from file /usr/local/etc/raddb/mods-enabled/attr_filter
  attr_filter attr_filter.access_challenge {
        filename = "/usr/local/etc/raddb/mods-config/attr_filter/access_challenge"
        key = "%{User-Name}"
        relaxed = no
  }
  # Loading module "attr_filter.accounting_response" from file /usr/local/etc/raddb/mods-enabled/attr_filter
  attr_filter attr_filter.accounting_response {
        filename = "/usr/local/etc/raddb/mods-config/attr_filter/accounting_response"
        key = "%{User-Name}"
        relaxed = no
  }
  # Loading module "attr_filter.coa" from file /usr/local/etc/raddb/mods-enabled/attr_filter
  attr_filter attr_filter.coa {
        filename = "/usr/local/etc/raddb/mods-config/attr_filter/coa"
        key = "%{User-Name}"
        relaxed = no
  }
  # Loaded module rlm_expiration
  # Loading module "expiration" from file /usr/local/etc/raddb/mods-enabled/expiration
  # Loaded module rlm_date
  # Loading module "date" from file /usr/local/etc/raddb/mods-enabled/date
  date {
        format = "%b %e %Y %H:%M:%S %Z"
        utc = no
  }
  # Loading module "wispr2date" from file /usr/local/etc/raddb/mods-enabled/date
  date wispr2date {
        format = "%Y-%m-%dT%H:%M:%S"
        utc = no
  }
  # Loaded module rlm_chap
  # Loading module "chap" from file /usr/local/etc/raddb/mods-enabled/chap
  # Loaded module rlm_logintime
  # Loading module "logintime" from file /usr/local/etc/raddb/mods-enabled/logintime
  logintime {
        minimum_timeout = 60
  }
  # Loaded module rlm_expr
  # Loading module "expr" from file /usr/local/etc/raddb/mods-enabled/expr
  expr {
        safe_characters = "@abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.-_: /äéöüàâæçèéêëîïôœùûüaÿÄÉÖÜßÀÂÆÇÈÉÊËÎÏÔŒÙÛÜŸ"
  }
  # Loaded module rlm_totp
  # Loading module "totp" from file /usr/local/etc/raddb/mods-enabled/totp
  totp {
        time_step = 30
        otp_length = 6
        lookback_steps = 1
        lookback_interval = 30
        lookforward_steps = 0
  }
  # Loaded module rlm_preprocess
  # Loading module "preprocess" from file /usr/local/etc/raddb/mods-enabled/preprocess
  preprocess {
        huntgroups = "/usr/local/etc/raddb/mods-config/preprocess/huntgroups"
        hints = "/usr/local/etc/raddb/mods-config/preprocess/hints"
        with_ascend_hack = no
        ascend_channels_per_line = 23
        with_ntdomain_hack = no
        with_specialix_jetstream_hack = no
        with_cisco_vsa_hack = no
        with_alvarion_vsa_hack = no
  }
  # Loaded module rlm_pap
  # Loading module "pap" from file /usr/local/etc/raddb/mods-enabled/pap
  pap {
        normalise = yes
  }
  # Loading module "sradutmp" from file /usr/local/etc/raddb/mods-enabled/sradutmp
  radutmp sradutmp {
        filename = "/var/log/sradutmp"
        username = "%{User-Name}"
        case_sensitive = yes
        check_with_nas = yes
        permissions = 420
        caller_id = no
  }
  # Loaded module rlm_unix
  # Loading module "unix" from file /usr/local/etc/raddb/mods-enabled/unix
  unix {
        radwtmp = "/var/log/radwtmp"
  }
Creating attribute Unix-Group
  # Loading module "exec" from file /usr/local/etc/raddb/mods-enabled/exec
  exec {
        wait = no
        input_pairs = "request"
        shell_escape = yes
        timeout = 10
  }
  # Loaded module rlm_digest
  # Loading module "digest" from file /usr/local/etc/raddb/mods-enabled/digest
  # Loaded module rlm_eap
  # Loading module "eap" from file /usr/local/etc/raddb/mods-enabled/eap
  eap {
        default_eap_type = "md5"
        timer_expire = 60
        max_eap_type = 52
        ignore_unknown_eap_types = no
        cisco_accounting_username_bug = no
        max_sessions = 16384
        dedup_key = ""
  }
  # Loaded module rlm_replicate
  # Loading module "replicate" from file /usr/local/etc/raddb/mods-enabled/replicate
  # Loaded module rlm_detail
  # Loading module "auth_log" from file /usr/local/etc/raddb/mods-enabled/detail.log
  detail auth_log {
        filename = "/var/log/radacct/%{%{Packet-Src-IP-Address}:-%{Packet-Src-IPv6-Address}}/auth-detail-%Y%m%d"
        header = "%t"
        permissions = 384
        locking = no
        dates_as_integer = no
        escape_filenames = no
        log_packet_header = no
  }
  # Loading module "reply_log" from file /usr/local/etc/raddb/mods-enabled/detail.log
  detail reply_log {
        filename = "/var/log/radacct/%{%{Packet-Src-IP-Address}:-%{Packet-Src-IPv6-Address}}/reply-detail-%Y%m%d"
        header = "%t"
        permissions = 384
        locking = no
        dates_as_integer = no
        escape_filenames = no
        log_packet_header = no
  }
  # Loading module "pre_proxy_log" from file /usr/local/etc/raddb/mods-enabled/detail.log
  detail pre_proxy_log {
        filename = "/var/log/radacct/%{%{Packet-Src-IP-Address}:-%{Packet-Src-IPv6-Address}}/pre-proxy-detail-%Y%m%d"
        header = "%t"
        permissions = 384
        locking = no
        dates_as_integer = no
        escape_filenames = no
        log_packet_header = no
  }
  # Loading module "post_proxy_log" from file /usr/local/etc/raddb/mods-enabled/detail.log
  detail post_proxy_log {
        filename = "/var/log/radacct/%{%{Packet-Src-IP-Address}:-%{Packet-Src-IPv6-Address}}/post-proxy-detail-%Y%m%d"
        header = "%t"
        permissions = 384
        locking = no
        dates_as_integer = no
        escape_filenames = no
        log_packet_header = no
  }
  # Loaded module rlm_mschap
  # Loading module "mschap" from file /usr/local/etc/raddb/mods-enabled/mschap
  mschap {
        use_mppe = yes
        require_encryption = no
        require_strong = no
        with_ntdomain_hack = yes
   passchange {
   }
        allow_retry = yes
        winbind_retry_with_normalised_username = no
  }
  # Loading module "detail" from file /usr/local/etc/raddb/mods-enabled/detail
  detail {
        filename = "/var/log/radacct/%{%{Packet-Src-IP-Address}:-%{Packet-Src-IPv6-Address}}/detail-%Y%m%d"
        header = "%t"
        permissions = 384
        locking = no
        dates_as_integer = no
        escape_filenames = no
        log_packet_header = no
  }
  instantiate {
  }
  # Instantiating module "IPASS" from file /usr/local/etc/raddb/mods-enabled/realm
  # Instantiating module "suffix" from file /usr/local/etc/raddb/mods-enabled/realm
  # Instantiating module "bangpath" from file /usr/local/etc/raddb/mods-enabled/realm
  # Instantiating module "realmpercent" from file /usr/local/etc/raddb/mods-enabled/realm
  # Instantiating module "ntdomain" from file /usr/local/etc/raddb/mods-enabled/realm
  # Instantiating module "etc_passwd" from file /usr/local/etc/raddb/mods-enabled/passwd
rlm_passwd: nfields: 3 keyfield 0(User-Name) listable: no
  # Instantiating module "reject" from file /usr/local/etc/raddb/mods-enabled/always
  # Instantiating module "fail" from file /usr/local/etc/raddb/mods-enabled/always
  # Instantiating module "ok" from file /usr/local/etc/raddb/mods-enabled/always
  # Instantiating module "handled" from file /usr/local/etc/raddb/mods-enabled/always
  # Instantiating module "invalid" from file /usr/local/etc/raddb/mods-enabled/always
  # Instantiating module "userlock" from file /usr/local/etc/raddb/mods-enabled/always
  # Instantiating module "notfound" from file /usr/local/etc/raddb/mods-enabled/always
  # Instantiating module "noop" from file /usr/local/etc/raddb/mods-enabled/always
  # Instantiating module "updated" from file /usr/local/etc/raddb/mods-enabled/always
  # Instantiating module "files" from file /usr/local/etc/raddb/mods-enabled/files
reading pairlist file /usr/local/etc/raddb/mods-config/files/authorize
reading pairlist file /usr/local/etc/raddb/mods-config/files/accounting
reading pairlist file /usr/local/etc/raddb/mods-config/files/pre-proxy
  # Instantiating module "linelog" from file /usr/local/etc/raddb/mods-enabled/linelog
  # Instantiating module "log_accounting" from file /usr/local/etc/raddb/mods-enabled/linelog
  # Instantiating module "attr_filter.post-proxy" from file /usr/local/etc/raddb/mods-enabled/attr_filter
reading pairlist file /usr/local/etc/raddb/mods-config/attr_filter/post-proxy
  # Instantiating module "attr_filter.pre-proxy" from file /usr/local/etc/raddb/mods-enabled/attr_filter
reading pairlist file /usr/local/etc/raddb/mods-config/attr_filter/pre-proxy
  # Instantiating module "attr_filter.access_reject" from file /usr/local/etc/raddb/mods-enabled/attr_filter
reading pairlist file /usr/local/etc/raddb/mods-config/attr_filter/access_reject
  # Instantiating module "attr_filter.access_challenge" from file /usr/local/etc/raddb/mods-enabled/attr_filter
reading pairlist file /usr/local/etc/raddb/mods-config/attr_filter/access_challenge
  # Instantiating module "attr_filter.accounting_response" from file /usr/local/etc/raddb/mods-enabled/attr_filter
reading pairlist file /usr/local/etc/raddb/mods-config/attr_filter/accounting_response
  # Instantiating module "attr_filter.coa" from file /usr/local/etc/raddb/mods-enabled/attr_filter
reading pairlist file /usr/local/etc/raddb/mods-config/attr_filter/coa
  # Instantiating module "expiration" from file /usr/local/etc/raddb/mods-enabled/expiration
  # Instantiating module "logintime" from file /usr/local/etc/raddb/mods-enabled/logintime
  # Instantiating module "totp" from file /usr/local/etc/raddb/mods-enabled/totp
  # Instantiating module "preprocess" from file /usr/local/etc/raddb/mods-enabled/preprocess
reading pairlist file /usr/local/etc/raddb/mods-config/preprocess/huntgroups
reading pairlist file /usr/local/etc/raddb/mods-config/preprocess/hints
  # Instantiating module "pap" from file /usr/local/etc/raddb/mods-enabled/pap
  # Instantiating module "eap" from file /usr/local/etc/raddb/mods-enabled/eap
   # Linked to sub-module rlm_eap_md5
   # Linked to sub-module rlm_eap_gtc
   gtc {
        challenge = "Password: "
        auth_type = "PAP"
   }
   # Linked to sub-module rlm_eap_tls
   tls {
        tls = "tls-common"
   }
   tls-config tls-common {
        verify_depth = 0
        ca_path = "/usr/local/etc/raddb/certs"
        pem_file_type = yes
        private_key_file = "/usr/local/etc/raddb/certs/server.pem"
        certificate_file = "/usr/local/etc/raddb/certs/server.pem"
        ca_file = "/usr/local/etc/raddb/certs/ca.pem"
        private_key_password = <<< secret >>>
        fragment_size = 1024
        include_length = yes
        auto_chain = yes
        check_crl = no
        check_all_crl = no
        ca_path_reload_interval = 0
        cipher_list = "DEFAULT"
        cipher_server_preference = no
        reject_unknown_intermediate_ca = no
        ecdh_curve = ""
        tls_max_version = "1.2"
        tls_min_version = "1.2"
    cache {
        enable = no
        lifetime = 24
        max_entries = 255
    }
    verify {
        skip_if_ocsp_ok = no
    }
    ocsp {
        enable = no
        override_cert_url = yes
        url = "http://127.0.0.1/ocsp/"
        use_nonce = yes
        timeout = 0
        softfail = no
    }
   }
   # Linked to sub-module rlm_eap_ttls
   ttls {
        tls = "tls-common"
        default_eap_type = "md5"
        copy_request_to_tunnel = no
        use_tunneled_reply = no
        virtual_server = "inner-tunnel"
        include_length = yes
        require_client_cert = no
   }
tls: Using cached TLS configuration from previous invocation
   # Linked to sub-module rlm_eap_peap
   peap {
        tls = "tls-common"
        default_eap_type = "mschapv2"
        copy_request_to_tunnel = no
        use_tunneled_reply = no
        proxy_tunneled_request_as_eap = yes
        virtual_server = "inner-tunnel"
        soh = no
        require_client_cert = no
   }
tls: Using cached TLS configuration from previous invocation
   # Linked to sub-module rlm_eap_mschapv2
   mschapv2 {
        with_ntdomain_hack = no
        send_error = no
   }
  # Instantiating module "auth_log" from file /usr/local/etc/raddb/mods-enabled/detail.log
rlm_detail (auth_log): 'User-Password' suppressed, will not appear in detail output
  # Instantiating module "reply_log" from file /usr/local/etc/raddb/mods-enabled/detail.log
  # Instantiating module "pre_proxy_log" from file /usr/local/etc/raddb/mods-enabled/detail.log
  # Instantiating module "post_proxy_log" from file /usr/local/etc/raddb/mods-enabled/detail.log
  # Instantiating module "mschap" from file /usr/local/etc/raddb/mods-enabled/mschap
rlm_mschap (mschap): using internal authentication
  # Instantiating module "detail" from file /usr/local/etc/raddb/mods-enabled/detail
 } # modules
radiusd: #### Loading Virtual Servers ####
server { # from file /usr/local/etc/raddb/radiusd.conf
} # server
server buffered-sql { # from file /usr/local/etc/raddb/sites-enabled/buffered-sql
 # Loading preacct {...}
} # server buffered-sql
server inner-tunnel { # from file /usr/local/etc/raddb/sites-enabled/inner-tunnel
 # Loading authenticate {...}
Compiling Auth-Type PAP for attr Auth-Type
Compiling Auth-Type CHAP for attr Auth-Type
Compiling Auth-Type MS-CHAP for attr Auth-Type
 # Loading authorize {...}
Ignoring "sql" (see raddb/mods-available/README.rst)
Ignoring "ldap" (see raddb/mods-available/README.rst)
 # Loading session {...}
 # Loading post-proxy {...}
 # Loading post-auth {...}
 # Skipping contents of 'if' as it is always 'false' -- /usr/local/etc/raddb/sites-enabled/inner-tunnel:366
Compiling Post-Auth-Type REJECT for attr Post-Auth-Type
} # server inner-tunnel
server default { # from file /usr/local/etc/raddb/sites-enabled/default
 # Loading authenticate {...}
Compiling Auth-Type PAP for attr Auth-Type
Compiling Auth-Type CHAP for attr Auth-Type
Compiling Auth-Type MS-CHAP for attr Auth-Type
 # Loading authorize {...}
Compiling Autz-Type New-TLS-Connection for attr Autz-Type
 # Loading preacct {...}
 # Loading accounting {...}
 # Loading post-proxy {...}
 # Loading post-auth {...}
Compiling Post-Auth-Type REJECT for attr Post-Auth-Type
Compiling Post-Auth-Type Challenge for attr Post-Auth-Type
Compiling Post-Auth-Type Client-Lost for attr Post-Auth-Type
} # server default
radiusd: #### Opening IP addresses and Ports ####
listen {
        type = "detail"
  listen {
        filename = "/var/log/radacct/detail-*"
        load_factor = 10
        poll_interval = 1
        retry_interval = 30
        one_shot = no
        track = no
  }
}
listen {
        type = "auth"
        ipaddr = 127.0.0.1
        port = 18120
detail (/var/log/radacct/detail-*): Polling for detail file
}
listen {
        type = "auth"
        ipaddr = *
        port = 0
   limit {
        max_connections = 16
        lifetime = 0
        idle_timeout = 30
   }
detail (/var/log/radacct/detail-*): Detail listener state unopened waiting 1.044287 sec
}
listen {
        type = "acct"
        ipaddr = *
        port = 0
   limit {
        max_connections = 16
        lifetime = 0
        idle_timeout = 30
   }
}
listen {
        type = "auth"
        ipv6addr = ::
        port = 0
   limit {
        max_connections = 16
        lifetime = 0
        idle_timeout = 30
   }
}
listen {
        type = "acct"
        ipv6addr = ::
        port = 0
   limit {
        max_connections = 16
        lifetime = 0
        idle_timeout = 30
   }
}
Listening on detail file /var/log/radacct/detail-* as server buffered-sql
Listening on auth address 127.0.0.1 port 18120 bound to server inner-tunnel
Listening on auth address * port 1812 bound to server default
Listening on acct address * port 1813 bound to server default
Listening on auth address :: port 1812 bound to server default
Listening on acct address :: port 1813 bound to server default
Listening on proxy address * port 20474
Listening on proxy address :: port 33334
Ready to process requests
Segmentation fault

Relevant log output from client utilities

No response

Backtrace from LLDB or GDB

Ready to process requests
Process 37422 stopped
* thread #1, name = 'radiusd', stop reason = signal SIGSEGV: invalid permissions for mapped object (fault address: 0x2766a9e0de0)
    frame #0: 0x000002766a9e0de0
(lldb) bt all
* thread #1, name = 'radiusd', stop reason = signal SIGSEGV: invalid permissions for mapped object (fault address: 0x2766a9e0de0)
  * frame #0: 0x000002766a9e0de0
    frame #1: 0x00000008235e58fb libfreeradius-radius.so`fr_event_loop(el=0x000002766a959520) at event.c:747:5
    frame #2: 0x000000000026958e radiusd`radius_event_process at process.c:6600:9
    frame #3: 0x0000000000259709 radiusd`main(argc=2, argv=0x0000000820bf3898) at radiusd.c:641:19
    frame #4: 0x0000000000230180 radiusd`_start(ap=<unavailable>, cleanup=<unavailable>) at crt1_c.c:71:7
  thread #2, name = 'radiusd'
    frame #0: 0x000000082a1ad82a libc.so.7`__sys_nanosleep + 10
    frame #1: 0x00000008274c131c libthr.so.3`___lldb_unnamed_symbol712 + 44
    frame #2: 0x000000082a12bdf6 libc.so.7`__usleep + 70
    frame #3: 0x0000000000279f7d radiusd`detail_handler_thread(arg=0x000002766a98f5a0) at detail.c:1094:4
    frame #4: 0x00000008274b59c5 libthr.so.3`___lldb_unnamed_symbol560 + 309
(lldb)
@zi0r zi0r added the defect category: a defect or misbehaviour label Jan 1, 2025
@alandekok
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This works for me with the current v3.2.x branch. Please try again with that.

@zi0r
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zi0r commented Jan 2, 2025

Same issue with the latest 3.2.x (commit ga01143c).

Listening on proxy address :: port 30279
Ready to process requests
Process 29154 stopped
* thread #1, name = 'radiusd', stop reason = signal SIGSEGV: invalid permissions for mapped object (fault address: 0xc53e85e2de0)
    frame #0: 0x00000c53e85e2de0
(lldb) bt all
* thread #1, name = 'radiusd', stop reason = signal SIGSEGV: invalid permissions for mapped object (fault address: 0xc53e85e2de0)
  * frame #0: 0x00000c53e85e2de0
    frame #1: 0x000000082228dea4 libfreeradius-radius.so`fr_event_loop(el=0x00000c53e855be20) at event.c:747:5
    frame #2: 0x00000000004518e2 radiusd`radius_event_process at process.c:6617:9
    frame #3: 0x000000000043978c radiusd`main(argc=2, argv=0x0000000820b3a990) at radiusd.c:653:19
    frame #4: 0x00000000004106c0 radiusd`_start(ap=<unavailable>, cleanup=<unavailable>) at crt1_c.c:71:7
  thread #2, name = 'radiusd'
    frame #0: 0x000000082abec82a libc.so.7`__sys_nanosleep + 10
    frame #1: 0x0000000827f5731c libthr.so.3`___lldb_unnamed_symbol712 + 44
    frame #2: 0x000000082ab6adf6 libc.so.7`__usleep + 70
    frame #3: 0x000000000045afa1 radiusd`detail_handler_thread(arg=0x00000c53e8591920) at detail.c:1094:4
    frame #4: 0x0000000827f4b9c5 libthr.so.3`___lldb_unnamed_symbol560 + 309
(lldb) frame info
frame #0: 0x00000a36059e2de0
(lldb) up
frame #1: 0x0000000820979ea4 libfreeradius-radius.so`fr_event_loop(el=0x00000a360595bb60) at event.c:747:5
   744                          }
   745 
   746                          if (el->events[i].filter == EVFILT_WRITE) {
-> 747                                  ef->write_handler(el, ef->fd, ef->ctx);
   748                                  continue;
   749                          }
   750 
(lldb) up
frame #2: 0x00000000004518e2 radiusd`radius_event_process at process.c:6617:9
   6614 {
   6615         if (!el) return 0;
   6616
-> 6617         return fr_event_loop(el);
   6618 }
(lldb) up
frame #3: 0x000000000043978c radiusd`main(argc=2, argv=0x00000008207dd2d0) at radiusd.c:653:19
   650          /*
   651           *  Process requests until HUP or exit.
   652           */
-> 653          while ((status = radius_event_process()) == 0x80) {
   654  #ifdef WITH_STATS
   655                  radius_stats_init(1);
   656  #endif
(lldb) up
frame #4: 0x00000000004106c0 radiusd`_start(ap=<unavailable>, cleanup=<unavailable>) at crt1_c.c:71:7
   68   #endif
   69  
   70           handle_static_init(argc, argv, env);
-> 71           exit(main(argc, argv, env));
   72   }
(lldb) up
error: Already at the top of the stack.
(lldb) t 2
* thread #2, name = 'radiusd'
    frame #0: 0x000000082867e82a libc.so.7`__sys_nanosleep + 10
libc.so.7`__sys_nanosleep:
->  0x82867e82a <+10>: jb     0x82867b6a8
    0x82867e830 <+16>: retq   
    0x82867e831:       int3   
    0x82867e832:       int3   
(lldb) up
frame #1: 0x0000000825ead31c libthr.so.3`___lldb_unnamed_symbol712 + 44
libthr.so.3`___lldb_unnamed_symbol712:
->  0x825ead31c <+44>: movl   %eax, %ebx
    0x825ead31e <+46>: movq   %r15, %rdi
    0x825ead321 <+49>: movl   $0x1, %esi
    0x825ead326 <+54>: callq  0x825ea02c0    ; ___lldb_unnamed_symbol555
(lldb) up
frame #2: 0x00000008285fcdf6 libc.so.7`__usleep + 70
libc.so.7`__usleep:
->  0x8285fcdf6 <+70>: movq   (%rbx), %rcx
    0x8285fcdf9 <+73>: cmpq   -0x10(%rbp), %rcx
    0x8285fcdfd <+77>: jne    0x8285fce06    ; <+86>
    0x8285fcdff <+79>: addq   $0x18, %rsp
(lldb) up
frame #3: 0x000000000045afa1 radiusd`detail_handler_thread(arg=0x00000a3605991920) at detail.c:1094:4
   1091                 RADIUS_PACKET *packet;
   1092
   1093                 while ((packet = detail_poll(this)) == NULL) {
-> 1094                         usleep(detail_delay(data));
   1095
   1096                         /*
   1097                          *      If we're supposed to exit then tell
(lldb) p *this
(rad_listen_t) {
  next = 0x00000a3605991ae0
  type = RAD_LISTEN_DETAIL
  fd = 9
  server = 0x00000a360592ae90 "buffered-sql"
  status = 1
  count = 0
  children = NULL
  parent = NULL
  dual = false
  proxy_protocol = false
  nodup = true
  synchronous = false
  dead = false
  workers = 0
  tls = NULL
  check_client_connections = false
  nonblock = false
  blocked = false
  recv = 0x00000000004593f2 (radiusd`detail_recv at detail.c:375:1)
  send = 0x0000000000458b24 (radiusd`detail_send at detail.c:65:1)
  proxy_send = 0x0000000000000000
  encode = 0x000000000045ae93 (radiusd`detail_encode at detail.c:1032:1)
  decode = 0x000000000045aea6 (radiusd`detail_decode at detail.c:1060:1)
  proxy_encode = 0x0000000000000000
  proxy_decode = 0x0000000000000000
  print = 0x000000000045acfd (radiusd`detail_print at detail.c:995:1)
  cs = NULL
  data = 0x00000a36059c4060
  stats = {
    total_requests = 0
    total_invalid_requests = 0
    total_dup_requests = 0
    total_responses = 0
    total_access_accepts = 0
    total_access_rejects = 0
    total_access_challenges = 0
    total_malformed_requests = 0
    total_bad_authenticators = 0
    total_packets_dropped = 0
    total_no_records = 0
    total_unknown_types = 0
    total_timeouts = 0
    total_conflicts = 0
    unresponsive_child = 0
    last_packet = 0
    elapsed = ([0] = 0, [1] = 0, [2] = 0, [3] = 0, [4] = 0, [5] = 0, [6] = 0, [7] = 0)
  }
}
(lldb) p *data
error: radiusd 0x000440c5: DW_TAG_member '__mbstate8' refers to type 0x00000000000440de which extends beyond the bounds of 0x000440bc
(listen_detail_t) {
  ev = NULL
  name = 0x00000a36059e2de0 "/var/log/radacct/detail-*"
  delay_time = 1000000
  filename = 0x00000a36059e2de0 "/var/log/radacct/detail-*"
  filename_work = 0x00000a36059e2e60 "/var/log/radacct/detail.work"
  ctx = 0x0000000000000000
  vps = NULL
  work_fd = -1
  master_pipe = ([0] = 9, [1] = 10)
  child_pipe = ([0] = 11, [1] = 12)
  pthread_id = 0x00000a3605212700
  fp = NULL
  offset = 0
  state = STATE_UNOPENED
  timestamp = 0
  running = 0
  client_ip = {
    af = 0
    ipaddr = {
      ip4addr = (s_addr = 0)
      ip6addr = {
        __u6_addr = (__u6_addr8 = "", __u6_addr16 = unsigned short[] @ 0x00001c06d7ad6284, __u6_addr32 = unsigned int[] @ 0x00001c06d7ad6284)
      }
    }
    prefix = '\0'
    scope = 0
  }
  last_offset = 0
  timestamp_offset = 0
  done_entry = false
  track = false
  load_factor = 10
  poll_interval = 1
  retry_interval = 30
  signal = 1
  packets = 0
  tries = 0
  one_shot = false
  outstanding = 0
  has_rtt = 0
  srtt = 0
  rttvar = 0
  counter = 0
  last_packet = (tv_sec = 0, tv_usec = 0)
  detail_client = {
    list = NULL
    ipaddr = {
      af = 2
      ipaddr = {
        ip4addr = (s_addr = 4294967295)
        ip6addr = {
          __u6_addr = (__u6_addr8 = "\xff\xff\xff\xff", __u6_addr16 = unsigned short[] @ 0x00001c06d7ad6304, __u6_addr32 = unsigned int[] @ 0x00001c06d7ad6304)
        }
      }
      prefix = '\0'
      scope = 0
    }
    src_ipaddr = {
      af = 0
      ipaddr = {
        ip4addr = (s_addr = 0)
        ip6addr = {
          __u6_addr = (__u6_addr8 = "", __u6_addr16 = unsigned short[] @ 0x00001c06d7ad6320, __u6_addr32 = unsigned int[] @ 0x00001c06d7ad6320)
        }
      }
      prefix = '\0'
      scope = 0
    }
    longname = 0x00000a36059e2de0 "/var/log/radacct/detail-*"
    shortname = 0x0000000000000000
    secret = 0x00000a36059e2de0 "/var/log/radacct/detail-*"
    require_ma = FR_BOOL_FALSE
    dynamic_require_ma = false
    limit_proxy_state = FR_BOOL_FALSE
    nas_type = 0x00000a36059b2e10 "none"
    login = 0x0000000000000000
    password = 0x0000000000000000
    server = 0x0000000000000000
    number = 0
    cs = NULL
    auth = {
      total_requests = 0
      total_invalid_requests = 0
      total_dup_requests = 0
      total_responses = 0
      total_access_accepts = 0
      total_access_rejects = 0
      total_access_challenges = 0
      total_malformed_requests = 0
      total_bad_authenticators = 0
      total_packets_dropped = 0
      total_no_records = 0
      total_unknown_types = 0
      total_timeouts = 0
      total_conflicts = 0
      unresponsive_child = 0
      last_packet = 0
      elapsed = ([0] = 0, [1] = 0, [2] = 0, [3] = 0, [4] = 0, [5] = 0, [6] = 0, [7] = 0)
    }
    acct = {
      total_requests = 0
      total_invalid_requests = 0
      total_dup_requests = 0
      total_responses = 0
      total_access_accepts = 0
      total_access_rejects = 0
      total_access_challenges = 0
      total_malformed_requests = 0
      total_bad_authenticators = 0
      total_packets_dropped = 0
      total_no_records = 0
      total_unknown_types = 0
      total_timeouts = 0
      total_conflicts = 0
      unresponsive_child = 0
      last_packet = 0
      elapsed = ([0] = 0, [1] = 0, [2] = 0, [3] = 0, [4] = 0, [5] = 0, [6] = 0, [7] = 0)
    }
    coa = {
      total_requests = 0
      total_invalid_requests = 0
      total_dup_requests = 0
      total_responses = 0
      total_access_accepts = 0
      total_access_rejects = 0
      total_access_challenges = 0
      total_malformed_requests = 0
      total_bad_authenticators = 0
      total_packets_dropped = 0
      total_no_records = 0
      total_unknown_types = 0
      total_timeouts = 0
      total_conflicts = 0
      unresponsive_child = 0
      last_packet = 0
      elapsed = ([0] = 0, [1] = 0, [2] = 0, [3] = 0, [4] = 0, [5] = 0, [6] = 0, [7] = 0)
    }
    dsc = {
      total_requests = 0
      total_invalid_requests = 0
      total_dup_requests = 0
      total_responses = 0
      total_access_accepts = 0
      total_access_rejects = 0
      total_access_challenges = 0
      total_malformed_requests = 0
      total_bad_authenticators = 0
      total_packets_dropped = 0
      total_no_records = 0
      total_unknown_types = 0
      total_timeouts = 0
      total_conflicts = 0
      unresponsive_child = 0
      last_packet = 0
      elapsed = ([0] = 0, [1] = 0, [2] = 0, [3] = 0, [4] = 0, [5] = 0, [6] = 0, [7] = 0)
    }
    response_window = (tv_sec = 0, tv_usec = 0)
    proto = 0
    limit = {
      max_connections = 0
      num_connections = 0
      max_requests = 0
      num_requests = 0
      lifetime = 0
      idle_timeout = 0
      read_timeout = 0
      write_timeout = 0
    }
    tls_required = false
    lifetime = 0
    dynamic = 0
    created = 0
    last_new_client = 0
    client_server = 0x0000000000000000
    rate_limit = false
    ev = NULL
    coa_name = 0x0000000000000000
    coa_home_server = NULL
    coa_home_pool = NULL
    defines_coa_server = false
  }
}
(lldb) 
(lldb) up
frame #4: 0x0000000825ea19c5 libthr.so.3`___lldb_unnamed_symbol560 + 309
libthr.so.3`___lldb_unnamed_symbol560:
->  0x825ea19c5 <+309>: movq   %rax, %rdi
    0x825ea19c8 <+312>: callq  0x825eaf540    ; symbol stub for: _pthread_exit
    0x825ea19cd <+317>: movl   $0x1, %edi
    0x825ea19d2 <+322>: callq  0x825eaf540    ; symbol stub for: _pthread_exit
(lldb) up
error: Already at the top of the stack.
root@134R-test:/usr/local/etc/raddb/sites-enabled # radiusd -v
radiusd: FreeRADIUS Version 3.2.7, for host amd64-portbld-freebsd13.4, built on Jan  2 2025 at 17:52:40
FreeRADIUS Version 3.2.7
Copyright (C) 1999-2023 The FreeRADIUS server project and contributors
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE
You may redistribute copies of FreeRADIUS under the terms of the
GNU General Public License
For more information about these matters, see the file named COPYRIGHT

Additional details:
OS: FreeBSD 13.4-RELEASE amd64
CONFIGURE_ARGS: --without-rlm_python --without-edir --without-rlm_sql_firebird --without-rlm_freetds --without-freetds --with-rlm-krb5-dir=/ --without-rlm_idn --without-rlm_json --without-rlm_ldap --with-rlm_sql_mysql --with-pcre --with-rlm_perl --without-rlm_sql_postgresql --without-rlm_python3 --with-rlm_redis --with-rlm_rediswho --without-rlm_rest --without-rlm_ruby --without-rlm_sql_sqlite --without-rlm_unbound --without-rlm_sql_unixodbc --with-experimental-modules --quiet --with-docdir=/usr/local/share/doc/freeradius --with-logdir=/var/log --with-openssl-includes=/usr/include --prefix=/usr/local --libdir=/usr/local/lib/freeradius-3.2.6.1 --localstatedir=/var --without-rlm_eap_ikev2 --without-rlm_eap_tnc --without-rlm_eap2 --without-rlm_opendirectory --without-rlm_sql_db2 --without-rlm_sql_iodbc --without-rlm_sql_sybase --without-rlm_yubikey --without-rlm_sql_oracle --without-rlm_securid --without-rlm_cache_memcached --with-vmps --with-collectdclient-lib-dir=/dev/null --disable-openssl-version-check --with-pic --prefix=/usr/local ${_LATE_CONFIGURE_ARGS}

  • Ignore the 3.2.6.1--this was just a quick way to test

@zi0r
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zi0r commented Jan 2, 2025

I did some additional testing and replaced usleep(detail_delay(data)); with usleep(10000); and still get the same crash.

It appears as if something with usleep() is the issue, rather than somewhere else in the *data structure.

@alandekok
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I don't think the issue is related to sleep. It's more likely that FreeBSD does something with kqueue that we don't expect, and therefore the internal event handlers aren't doing the right thing. We'll have to spin up a FreeBSD system to be sure.

@zi0r
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zi0r commented Jan 4, 2025

I can provision a box if that would be of any use to you--would just need SSH pub keys.

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