Christopher Faulet a8887e55a0 BUG/MEDIUM: htx: Fix function used to change part of a block value when defrag
htx_replace_blk_value() is buggy when a defrag is performed. It only happens
on data expension. But in that case, because a defragmentation is performed,
the blocks data are moved and old data of the updated block are no longer
accessible.

To fix the bug, we now use a chunk to temporarily copy the new data of the
block. This way we can safely perform the HTX defragmentation and then
recopy the data from the chunk to the HTX message.

It is theorically possible to hit this bug but concretly it is pretty hard.

This patch should be backported to all stable versions.
2026-02-18 13:26:21 +01:00
2026-02-04 14:59:47 +01:00
2026-02-04 14:59:47 +01:00
2026-02-04 14:59:47 +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.

Languages
C 98%
Shell 0.9%
Makefile 0.5%
Lua 0.2%
Python 0.2%