HAProxy - Load balancer
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Remi Tricot-Le Breton 7482b6ebf0 BUG/MEDIUM: ssl: Crash because of dangling ckch_store reference in a ckch instance
When updating CAs via the CLI, we need to create new copies of all the
impacted ckch instances (as in referenced in the ckch_inst_link list of
the updated CA) in order to use them instead of the old ones once the
updated is completed. This relies on the ckch_inst_rebuild function that
would set the ckch_store field of the ckch_inst. But we forgot to also
add the newly created instances in the ckch_inst list of the
corresponding ckch_store.

When updating a certificate afterwards, we iterate over all the
instances linked in the ckch_inst list of the ckch_store (which is
missing some instances because of the previous command) and rebuild the
instances before replacing the ckch_store. The previous ckch_store,
still referenced by the dangling ckch instance then gets deleted which
means that the instance keeps a reference to a free'd object.

Then if we were to once again update the CA file, we would iterate over
the ckch instances referenced in the cafile_entry's ckch_inst_link list,
which includes the first mentioned ckch instance with the dead
ckch_store reference. This ends up crashing during the ckch_inst_rebuild
operation.

This bug was raised in GitHub #3165.
This patch should be backported to all stable branches.
2025-10-28 10:43:45 +01:00
.github CI: github: build halog on the vtest job 2025-09-26 16:29:29 +02:00
addons MINOR: applet: Add a flag to know an applet is using HTX buffers 2025-08-25 11:11:05 +02:00
admin ADMIN: reload: introduce -vv mode 2025-09-29 19:29:10 +02:00
dev DEV: patchbot: use git reset+checkout instead of pull 2025-10-08 04:38:35 +02:00
doc BUG/MINOR: quic: rename and duplicate stream settings 2025-10-23 16:49:20 +02:00
examples MINOR: mailers: warn if mailers are configured but not actually used 2025-06-27 16:41:18 +02:00
include BUG/MEDIUM: cli: do not return ACKs one char at a time 2025-10-27 16:57:07 +01:00
reg-tests REGTESTS: remove experimental from quic/retry.vtc 2025-10-17 20:55:43 +02:00
scripts CI: scripts: build curl with ECH support 2025-09-25 17:05:46 +02:00
src BUG/MEDIUM: ssl: Crash because of dangling ckch_store reference in a ckch instance 2025-10-28 10:43:45 +01:00
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 3.3-dev10 2025-10-18 11:24:05 +02:00
CONTRIBUTING CLEANUP: assorted typo fixes in the code and comments 2025-04-02 11:12:20 +02:00
INSTALL BUILD: makefile: bump the default minimum linux version to 4.17 2025-09-05 09:44:56 +02:00
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 BUG/MEDIUM: build: limit excessive and counter-productive gcc-15 vectorization 2025-10-23 10:06:52 +02:00
README.md DOC: change the link to the FreeBSD CI in README.md 2024-06-03 15:21:29 +02:00
SUBVERS BUILD: use format tags in VERDATE and SUBVERS files 2013-12-10 11:22:49 +01:00
VERDATE [RELEASE] Released version 3.3-dev10 2025-10-18 11:24:05 +02:00
VERSION [RELEASE] Released version 3.3-dev10 2025-10-18 11:24:05 +02:00

HAProxy

alpine/musl AWS-LC openssl no-deprecated 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.