HAProxy - Load balancer
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Amaury Denoyelle a15f0461a0
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BUG/MEDIUM: h3: do not access QCS <sd> if not allocated
Since the following commit, allocation of QCS stream-endpoint on FE side
has been delayed. The objective is to allocate it only for QCS attached
to an upper stream object. Stream-endpoint allocation is now performed
on qcs_attach_sc() called during HEADERS parsing.

  commit e6064c5616
  OPTIM: mux-quic: delay FE sedesc alloc to stream creation

Also, stream-endpoint is accessed through the QCS instance after HEADERS
or DATA frames parsing, to update the known input payload length. The
above patch triggered regressions as in some code paths, <sd> field is
dereferenced while still being NULL.

This patch fixes this by restricting access to <sd> field after newer
conditions.

First, after HEADERS parsing, known input length is only updated if
h3_req_headers_to_htx() previously returned a success value, which
guarantee that qcs_attach_sc() has been executed.

After DATA parsing, <sd> is only accessed after the frame validity
check. This ensures that HEADERS were already parsed, thus guaranteing
that stream-endpoint is allocated.

This should fix github issue #3211.

This must be backported up to 3.3. This is sufficient, unless above
patch is backported to previous releases, in which case the current one
must be picked with it.
2025-12-09 15:00:23 +01:00
.github REGTESTS: ssl: Move all the SSL certificates, keys, crt-lists inside "certs" directory 2025-12-08 10:40:59 +01:00
addons MINOR: applet: Add a flag to know an applet is using HTX buffers 2025-08-25 11:11:05 +02:00
admin ADMIN: dump-certs: let dry-run compare certificates 2025-11-20 16:50:20 +01:00
dev DEV: patchbot: prepare for new version 3.4-dev 2025-11-26 15:35:22 +01:00
doc DOC: config: Improve spop mode documentation 2025-12-08 15:24:05 +01:00
examples MINOR: mailers: warn if mailers are configured but not actually used 2025-06-27 16:41:18 +02:00
include MEDIUM: ssl/server: No longer store the SNI of cached TLS sessions 2025-12-08 15:22:01 +01:00
reg-tests REGTESTS: quic: tls13_ssl_crt-list_filters.vtc supported by QUIC 2025-12-09 07:42:45 +01:00
scripts SCRIPTS: build-ssl: fix rpath in AWS-LC install for openssl and bssl bin 2025-11-03 15:04:57 +01:00
src BUG/MEDIUM: h3: do not access QCS <sd> if not allocated 2025-12-09 15:00:23 +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 3.4-dev0 2025-11-26 16:12:45 +01:00
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 BUILD: Makefile: remove halog from install-admin 2025-11-19 16:52:20 +01:00
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 3.3.0 2025-11-26 15:55:57 +01:00
VERSION [RELEASE] Released version 3.4-dev0 2025-11-26 16:12:45 +01:00

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.