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HAProxy - Load balancer
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Greg Kroah-Hartman b63cae7f9b BUG/MINOR: resolvers: fix memory leak on AAAA additional records 
Commit c84c15d393 ("BUG/MINOR: resolvers: Apply dns-accept-family
setting on additional records") converted a switch statement to an
if/else chain but left the break; in the AAAA branch. In the new
form, break exits the surrounding for loop instead of a switch case.

For every AAAA additional record in an SRV response:
  - answer_record allocated at line 1460 is never freed and never
    inserted into answer_tree -> ~580 bytes leaked per response
  - all subsequent additional records in the response are silently
    discarded

A DNS server controlling SRV responses for haproxy service discovery
can leak memory at MB/min rates given default resolution intervals.
Also breaks IPv6 SRV target resolution outright since the AAAA record
is leaked rather than attached to its SRV entry.
2026-04-09 16:31:05 +02:00
.github CI: github: add the architecture to the cache key for vtest2 2026-04-08 11:16:59 +02:00
addons MINOR: promex: export "haproxy_sticktable_local_updates" metric 2026-03-18 11:18:37 +01:00
admin CLEANUP: fix typos and spelling in comments and documentation 2026-03-30 09:24:19 +02:00
dev CLEANUP: fix typos and spelling in comments and documentation 2026-03-30 09:24:19 +02:00
doc MINOR: lua: add tune.lua.openlibs to restrict loaded Lua standard libraries 2026-04-09 14:31:10 +02:00
examples MINOR: ssl/log: add keylog format variables and env vars 2026-04-01 16:28:49 +02:00
include MEDIUM: check: Revamp the way the protocol and xprt are determined 2026-04-08 18:41:48 +02:00
reg-tests REGTESTS: lua: add tune.lua.openlibs to all Lua reg-tests 2026-04-09 14:32:12 +02:00
scripts CI: VTest build with git clone + cache 2026-04-07 18:35:23 +02:00
src BUG/MINOR: resolvers: fix memory leak on AAAA additional records 2026-04-09 16:31:05 +02:00
tests TESTS: quic: add unit-tests for QUIC TX part 2025-09-08 14:49:03 +02:00
.cirrus.yml CI: cirrus-ci: bump FreeBSD image to 14-3 2025-10-09 14:06:48 +02:00
.gitattributes MINOR: Configure the cpp userdiff driver for *.[ch] in .gitattributes 2021-02-22 18:17:57 +01:00
.gitignore MINOR: tevt/dev: Add term_events tool 2025-01-31 10:41:50 +01:00
.mailmap DOC: update Tim's address in .mailmap 2021-09-16 09:14:14 +02:00
.travis.yml MEDIUM: mworker: remove USE_SYSTEMD requirement for -Ws 2024-11-20 12:07:38 +01:00
BRANCHES DOC: clarify the experimental status for certain features 2025-10-17 18:41:13 +02:00
BSDmakefile BUILD: makefile: commit the tiny FreeBSD makefile stub 2023-05-24 17:17:36 +02:00
CHANGELOG [RELEASE] Released version 3.4-dev8 2026-04-03 11:46:05 +02:00
CONTRIBUTING CLEANUP: assorted typo fixes in the code and comments 2025-04-02 11:12:20 +02:00
INSTALL MINOR: version: mention that it's development again 2025-11-26 16:11:47 +01:00
LICENSE LICENSE: add licence exception for OpenSSL 2012-09-07 13:52:26 +02:00
MAINTAINERS MAJOR: spoe: Let the SPOE back into the game 2024-05-22 09:04:38 +02:00
Makefile MINOR: xprt_qstrm: define new xprt module for QMux protocol 2026-04-02 14:02:04 +02:00
README.md DOC: remove openssl no-deprecated CI image 2026-02-19 10:39:23 +01:00
SUBVERS BUILD: use format tags in VERDATE and SUBVERS files 2013-12-10 11:22:49 +01:00
VERDATE [RELEASE] Released version 3.4-dev8 2026-04-03 11:46:05 +02:00
VERSION [RELEASE] Released version 3.4-dev8 2026-04-03 11:46:05 +02:00

README.md

HAProxy

alpine/musl AWS-LC Illumos NetBSD FreeBSD VTest

HAProxy logo

HAProxy is a free, very fast and reliable reverse-proxy offering high availability, load balancing, and proxying for TCP and HTTP-based applications.

Installation

The INSTALL file describes how to build HAProxy. A list of packages is also available on the wiki.

Getting help

The discourse and the mailing-list are available for questions or configuration assistance. You can also use the slack or IRC channel. Please don't use the issue tracker for these.

The issue tracker is only for bug reports or feature requests.

Documentation

The HAProxy documentation has been split into a number of different files for ease of use. It is available in text format as well as HTML. The wiki is also meant to replace the old architecture guide.

Please refer to the following files depending on what you're looking for:

  • INSTALL for instructions on how to build and install HAProxy
  • BRANCHES to understand the project's life cycle and what version to use
  • LICENSE for the project's license
  • CONTRIBUTING for the process to follow to submit contributions

The more detailed documentation is located into the doc/ directory:

License

HAProxy is licensed under GPL 2 or any later version, the headers under LGPL 2.1. See the LICENSE file for a more detailed explanation.