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Posted to bugs@httpd.apache.org by bu...@apache.org on 2020/03/04 22:12:37 UTC
[Bug 64199] New: Memory leak, or mistake in a code or in
configuration when using ipv6
https://bz.apache.org/bugzilla/show_bug.cgi?id=64199
Bug ID: 64199
Summary: Memory leak, or mistake in a code or in configuration
when using ipv6
Product: Apache httpd-2
Version: 2.4.41
Hardware: PC
OS: FreeBSD
Status: NEW
Severity: normal
Priority: P2
Component: mod_authz_core
Assignee: bugs@httpd.apache.org
Reporter: email@sremail.pl
Target Milestone: ---
The situation is simple. When doing server stress ( multiple servers ) Most of
the time I am getting granted access, but one in 1000 gets denied. I am using
IPv6.
[Wed Mar 04 20:31:01.732244 2020] [authz_core:debug] [pid 90852]
mod_authz_core.c(817): [client VVVV:VVVV:VVVV:0:ab7a:f807:c2ab:839d:59240]
AH01626: authorization result of Require ip VVVV:VVVV:VVVV::/48: granted
[Wed Mar 04 20:31:04.321152 2020] [authz_core:debug] [pid 90851]
mod_authz_core.c(817): [client VVVV:VVVV:VVVV:0:ab7a:f807:c2ab:839d:47284]
AH01626: authorization result of Require ip VVVV:VVVV:VVVV::/48: denied
<Directory "/usr/local/www/">
Allowoverride FileInfo
Options +FollowSymLinks -SymLinksIfOwnerMatch +Includes
AllowOverride All
AuthType Basic
AuthBasicProvider file
AuthName "Password Required"
AuthUserFile "/usr/local/etc/apache24/.htpasswd"
<RequireAny>
Require ip XX.XX.XX.XX
Require ip XX.XX.XX.XX
Require ip XX.XX.XX.XX
Require ip VVVV:VVVV:VVVV::/48
Require valid-user
</RequireAny>
</Directory>
#apachectl -V
Server version: Apache/2.4.41 (FreeBSD)
Server built: unknown
Server's Module Magic Number: 20120211:88
Server loaded: APR 1.7.0, APR-UTIL 1.6.1
Compiled using: APR 1.7.0, APR-UTIL 1.6.1
Architecture: 64-bit
Server MPM: prefork
threaded: no
forked: yes (variable process count)
Server compiled with....
-D APR_HAS_SENDFILE
-D APR_HAS_MMAP
-D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)
-D APR_USE_FLOCK_SERIALIZE
-D APR_USE_PTHREAD_SERIALIZE
-D SINGLE_LISTEN_UNSERIALIZED_ACCEPT
-D APR_HAS_OTHER_CHILD
-D AP_HAVE_RELIABLE_PIPED_LOGS
-D DYNAMIC_MODULE_LIMIT=256
-D HTTPD_ROOT="/usr/local"
-D SUEXEC_BIN="/usr/local/sbin/suexec"
-D DEFAULT_PIDLOG="/var/run/httpd.pid"
-D DEFAULT_SCOREBOARD="/var/run/apache_runtime_status"
-D DEFAULT_ERRORLOG="/var/log/httpd-error.log"
-D AP_TYPES_CONFIG_FILE="etc/apache24/mime.types"
-D SERVER_CONFIG_FILE="etc/apache24/httpd.conf"
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[Bug 64199] Memory leak, or mistake in a code or in configuration
when using ipv6
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=64199
--- Comment #1 from Joe Orton <jo...@redhat.com> ---
Quite surprising, not aware of similar reports. Might need some help debugging
it. e.g. add an abort() before the "return AUTHZ_DENIED" in mod_authz_host.c's
ip_check_authorization() function and then capture a core dump for the rare
failure case and see if something looks corrupt. What CPU architecture?
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