HAProxy known bugs for version v2.6.13 (maintenance branch 2.6) : 28

This version (2.6.13) is a release belonging to maintenance branch 2.6 whose latest version is 2.6.13. If your version is not the last one in the maintenance branch, you are missing fixes for known bugs, and by not updating you are needlessly taking the responsibility for the risk of unexpected service outages and exposing your web site to possible security issues.

The HAProxy development team takes a great care of maintaining stable versions so that all users can apply bug fixes without having to take the risk of upgrading to a new branch. In turn users are expected to apply the fixes when the development team estimates that they were worth being backported to stable branches.

Quick links

full changelog for 2.6 : here
browse history for 2.6 : here

Other versions in the same branch

This branch contains the following releases :

Date Version Comment

2023-05-02 2.6.13 ⇐ yours ⇐ last

2023-03-28 2.6.12

2023-03-17 2.6.11

2023-03-10 2.6.10

2023-02-14 2.6.9

2023-01-24 2.6.8

2022-12-02 2.6.7

2022-09-22 2.6.6

2022-09-03 2.6.5

2022-08-22 2.6.4

2022-08-19 2.6.3

2022-07-22 2.6.2

2022-06-21 2.6.1

2022-05-31 2.6.0

Date	Version	Comment
2023-05-02	2.6.13	⇐ yours ⇐ last
2023-03-28	2.6.12
2023-03-17	2.6.11
2023-03-10	2.6.10
2023-02-14	2.6.9
2023-01-24	2.6.8
2022-12-02	2.6.7
2022-09-22	2.6.6
2022-09-03	2.6.5
2022-08-22	2.6.4
2022-08-19	2.6.3
2022-07-22	2.6.2
2022-06-21	2.6.1
2022-05-31	2.6.0

Known bugs affecting this version, and already fixed in the maintenance branch

These fixes have already been queued for a more recent 2.6 version. Some of them might have already been released in a more recent version than yours, and other ones might still be pending in the maintenance branch for a future release. The list may be empty if you're already on the latest version and no new fix was backported.

Bugs are almost always tagged with a severity (some people forget the severity tag when the bug is minor). The following severities are used :

MINOR: the bug presents a limited impact and can easily be mitigated ; users rarely upgrade just for these ones ;
MEDIUM: the bug can cause some undesired behaviour and may require some tricky configuration changes to avoid hitting it ; users normally upgrade to get rid of them, or temporarily disable a functionality.
MAJOR: the bug affects short term reliability and cannot easily be worked around without a significant performance penalty or without a significant functional loss ; such bugs don't stay long in the queue without a release and users must plan an upgrade as soon as possible ;
CRITICAL: this one very rarely happens ; it indicates a short-term reliability or security issue for which there is no workaround. A release will be emitted for this fix even if it's alone and users are urged to upgrade immediately. Some distro maintainers might have been informed in advance in order to agree on a coordinated release date.

Total known bugs in this version by category :

Total CRITICAL MAJOR MEDIUM MINOR

28 0 0 4 24

Total	CRITICAL	MAJOR	MEDIUM	MINOR
28	0	0	4	24

Click on the subjects below to get the full description of the bug :

Merge date	Subject - Severity (minor, medium, major, critical)
2023-06-06	BUG/MINOR: quic: Possible crash when SSL session init fails
2023-06-06	BUG/MINOR: spoe: Only skip sending new frame after a receive attempt
2023-06-05	BUG/MINOR: quic: Missing Retry token length on receipt
2023-06-05	BUG/MINOR: quic: Wrong token length check (quic_generate_retry_token())
2023-06-05	BUG/MEDIUM: mux-quic: fix EOI for request without payload
2023-06-05	BUG/MINOR: mux-quic: handle properly Tx buf exhaustion
2023-06-05	BUG/MINOR: mux-quic: differentiate failure on qc_stream_desc alloc
2023-06-05	BUG/MINOR: quic: do not alloc buf count on alloc failure
2023-06-05	BUG/MINOR: mux-quic: handle properly recv ncbuf alloc failure
2023-06-05	BUG/MINOR: mux-quic: properly handle buf alloc failure
2023-05-26	BUG/MINOR: hlua: unsafe hlua_lua2smp() usage
2023-05-26	BUG/MINOR: tcp-rules: Don't shortened the inspect-delay when EOI is set
2023-05-17	BUG/MINOR: clock: fix the boot time measurement method for 2.6 and older
2023-05-17	BUG/MINOR: checks: postpone the startup of health checks by the boot time
2023-05-17	BUG/MINOR: log: fix memory error handling in parse_logsrv()
2023-05-17	BUG/MINOR: errors: handle malloc failure in usermsgs_put()
2023-05-11	BUG/MINOR: http_rules: fix errors paths in http_parse_redirect_rule()
2023-05-11	BUG/MINOR: proxy: missing free in free_proxy for redirect rules
2023-05-11	BUG/MEDIUM: mux-fcgi: Don't request more room if mux is waiting for more data
2023-05-11	BUG/MINOR: quic: Buggy acknowlegments of acknowlegments function
2023-05-11	BUG/MEDIUM: filters: Don't deinit filters for disabled proxies during startup
2023-05-11	BUG/MINOR: quic: Possible crash when dumping version information
2023-05-11	BUG/MINOR: quic: Wrong key update cipher context initialization for encryption
2023-05-11	BUG/MINOR: debug: do not emit empty lines in thread dumps
2023-05-11	BUG/MINOR: mux-quic: prevent quic_conn error code to be overwritten
2023-05-11	DEV: haring: automatically disable DEBUG_STRICT
2023-05-11	BUG/MINOR: resolvers: Use sc_need_room() to wait more room when dumping stats
2023-05-11	BUG/MEDIUM: spoe: Don't start new applet if there are enough idle ones
2023-05-10	BUG/MINOR: fd: always remove late updates when freeing fd_updt[]

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