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[Bug 62552] Loading mod_md segfaults when using DBDriver from mod_authn_dbd


https://bz.apache.org/bugzilla/show_bug.cgi?id=62552

--- Comment #16 from Manuel Schmitt (manitu) <manuel.schmitt@xxxxxxxxx> ---
We have a similar issue at

    https://bugs.gentoo.org/666406

with the difference that it has NOT to do with mod_md (we are not using it).

We can confirm "our" bug with apache 2.4.33 and 2.4.34. Our module order and
list is:

        LoadModule access_compat_module modules/mod_access_compat.so
        LoadModule actions_module modules/mod_actions.so
        LoadModule alias_module modules/mod_alias.so
        LoadModule auth_basic_module modules/mod_auth_basic.so
        LoadModule authn_anon_module modules/mod_authn_anon.so
        LoadModule authn_core_module modules/mod_authn_core.so
        LoadModule authn_dbd_module modules/mod_authn_dbd.so
        LoadModule authn_dbm_module modules/mod_authn_dbm.so
        LoadModule authn_file_module modules/mod_authn_file.so
        LoadModule authz_core_module modules/mod_authz_core.so
        LoadModule authz_dbd_module modules/mod_authz_dbd.so
        LoadModule authz_dbm_module modules/mod_authz_dbm.so
        LoadModule authz_groupfile_module modules/mod_authz_groupfile.so
        LoadModule authz_host_module modules/mod_authz_host.so
        LoadModule authz_owner_module modules/mod_authz_owner.so
        LoadModule authz_user_module modules/mod_authz_user.so
        LoadModule autoindex_module modules/mod_autoindex.so
        LoadModule cgi_module modules/mod_cgi.so
        LoadModule cgid_module modules/mod_cgid.so
        LoadModule dbd_module modules/mod_dbd.so
        LoadModule deflate_module modules/mod_deflate.so
        LoadModule dir_module modules/mod_dir.so
        LoadModule env_module modules/mod_env.so
        LoadModule expires_module modules/mod_expires.so
        LoadModule ext_filter_module modules/mod_ext_filter.so
        LoadModule filter_module modules/mod_filter.so
        LoadModule headers_module modules/mod_headers.so
        LoadModule include_module modules/mod_include.so
        LoadModule info_module modules/mod_info.so
        LoadModule log_config_module modules/mod_log_config.so
        LoadModule logio_module modules/mod_logio.so
        LoadModule macro_module modules/mod_macro.so
        LoadModule mime_module modules/mod_mime.so
        LoadModule mime_magic_module modules/mod_mime_magic.so
        LoadModule negotiation_module modules/mod_negotiation.so
        LoadModule reqtimeout_module modules/mod_reqtimeout.so
        LoadModule rewrite_module modules/mod_rewrite.so
        LoadModule setenvif_module modules/mod_setenvif.so
        LoadModule socache_shmcb_module modules/mod_socache_shmcb.so
        LoadModule speling_module modules/mod_speling.so
        LoadModule ssl_module modules/mod_ssl.so
        LoadModule status_module modules/mod_status.so
        LoadModule unique_id_module modules/mod_unique_id.so
        LoadModule unixd_module modules/mod_unixd.so
        LoadModule usertrack_module modules/mod_usertrack.so
        LoadModule vhost_alias_module modules/mod_vhost_alias.so

The problem does NOT arise with 2.4.27.

More over we did find out that it happens only if

a) ssl module is loaded
b) a "DBDriver mysql" is used

together - but if there is only a) or b).

The issue is also there when using openssl 1.0.2o instead of p.


Since we are using Gentoo, we also did a full rebuild of all components
(apache, apr, apr-util, openssl, mysql client lib) against each other
(especially openssl). Nothing helped.

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