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Aurelien DARRAGON ac1f413590 BUG/MINOR: stats: fix segfault caused by uninitialized value in "show schema json" 
Since b3d5708 ("MINOR: stats: remove implicit static trash_chunk usage")
a segfault can occur when issuing "show schema json" on the stats socket.

Indeed, now the dumping functions don't rely on trash_chunk anymore, but
instead they rely on the appctx->chunk buffer. However, unlike other
stats dumping commands, the "show schema json" only have an io handler,
and no parse function. With other command, the parse function is
responsible for pre-setting some data, including applet ctx reservation.

Thus due to "show schema json" lacking parsing function, the applet ctx is
used uninitialized, which is a bug obviously.

To fix the issue we simply add a parse function for "show schema json",
although all it does for now is calling applet_reserve_svcctx() for the
current applet ctx.

This issue was reported by @dsuch in GH #2825. It must be backported up
to 3.0.
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VERDATE [RELEASE] Released version 3.2-dev1 2024-12-11 14:17:46 +01:00
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README.md

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.