HAProxy known bugs for maintenance branch 2.4 :  52 

This is maintenance branch 2.4 whose latest version is 2.4.22. 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. In short, if you are running any 2.4 version other than 2.4.22, you're running with known bugs.

Quick links

Versions available in this branch

This branch contains the following releases :

DateVersionComment
2023-02-142.4.22 ⇐ last
2023-01-272.4.21 
2022-12-092.4.20 
2022-09-282.4.19 
2022-07-272.4.18 
2022-05-132.4.17 
2022-04-292.4.16 
2022-03-142.4.15 
2022-02-252.4.14 
2022-02-162.4.13 
2022-01-112.4.12 
2022-01-072.4.11 
2021-12-232.4.10 
2021-11-242.4.9 
2021-11-032.4.8 
2021-10-042.4.7 
2021-10-042.4.6 
2021-10-012.4.5 
2021-09-072.4.4 
2021-08-172.4.3 
2021-07-072.4.2 
2021-06-172.4.1 
2021-05-142.4.0 

Fixes for known bugs pending in this branch since the last release (2.4.22)

These fixes have already been queued for the next 2.4 release but no version was released with them yet. Note that fixes are backported several at a time from the development branch to maintenance branches, and the absence of a fix here doesn't mean none will be issued soon.

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

Total known bugs in the latest version of this branch by category :

TotalCRITICALMAJORMEDIUMMINOR
52 0 0 16 36

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

Merge dateSubject - Severity (minor, medium, major, critical)
2023-06-06BUG/MINOR: spoe: Only skip sending new frame after a receive attempt
2023-06-06BUG/MINOR: http_rules: fix errors paths in http_parse_redirect_rule()
2023-05-26BUG/MEDIUM: filters: Don't deinit filters for disabled proxies during startup
2023-05-26BUG/MINOR: server: don't use date when restoring last_change from state file
2023-05-26BUG/MINOR: server: don't miss server stats update on server state transitions
2023-05-26BUG/MINOR: server: don't miss proxy stats update on server state transitions
2023-05-26BUG/MINOR: server: incorrect report for tracking servers leaving drain
2023-05-26BUG/MEDIUM: spoe: Don't start new applet if there are enough idle ones
2023-05-26BUG/MINOR: debug: do not emit empty lines in thread dumps
2023-05-26BUG/MINOR: proxy: missing free in free_proxy for redirect rules
2023-05-26BUG/MINOR: log: fix memory error handling in parse_logsrv()
2023-05-26BUG/MINOR: hlua: unsafe hlua_lua2smp() usage
2023-05-26BUG/MINOR: tcp-rules: Don't shortened the inspect-delay when EOI is set
2023-05-17BUG/MINOR: clock: fix the boot time measurement method for 2.6 and older
2023-05-17BUG/MINOR: checks: postpone the startup of health checks by the boot time
2023-04-24BUG/MINOR: mux-h2: make sure to produce a log on invalid requests
2023-04-24BUG/MEDIUM: Update read expiration date on synchronous send
2023-04-24BUG/MEDIUM: proxy/sktable: prevent watchdog trigger on soft-stop
2023-04-21BUG/MINOR: cfgparse: make sure to include openssl-compat
2023-04-21BUG/MEDIUM: log: Properly handle client aborts in syslog applet
2023-04-21BUG/MINOR: stick_table: alert when type len has incorrect characters
2023-04-21BUG/MEDIUM: resolvers: Force the connect timeout for DNS resolutions
2023-04-21BUG/MINOR: hlua: enforce proper running context for register_x functions
2023-04-21BUG/MINOR: log: free log forward proxies on deinit()
2023-04-21BUG/MINOR: sink: free forward_px on deinit()
2023-04-21BUG/MEDIUM: dns: Properly handle error when a response consumed
2023-04-21BUG/MEDIUM: channel: Improve reports for shut in co_getblk()
2023-04-21BUG/MEDIUM: mux-h1: Wakeup H1C on shutw if there is no I/O subscription
2023-04-21BUG/MEDIUM: mux-h2: erase h2c->wait_event.tasklet on error path
2023-04-21BUG/MEDIUM: connection: Preserve flags when a conn is removed from an idle list
2023-04-21BUG/MEDIUM: connection: Clear flags when a conn is removed from an idle list
2023-04-21BUG/MINOR: sock_unix: match finalname with tempname in sock_unix_addrcmp()
2023-04-21BUG/MINOR: protocol: fix minor memory leak in protocol_bind_all()
2023-04-21BUG/MINOR: proto_ux: report correct error when bind_listener fails
2023-04-21BUG/MEDIUM: spoe: Don't set the default traget for the SPOE agent frontend
2023-04-21BUG/MEDIUM: listener: duplicate inherited FDs if needed
2023-04-21BUG/MINOR: mux-h2: make sure the h2c task exists before refreshing it
2023-04-21BUG/MINOR: init: make sure to always limit the total number of threads
2023-04-21BUG/MINOR: init: properly detect NUMA bindings on large systems
2023-04-21BUG/MINOR: ssl: Use 'date' instead of 'now' in ocsp stapling callback
2023-04-21BUG/MINOR: http-ana: Do a L7 retry on read error if there is no response
2023-04-21BUG/MINOR: http-check: Skip C-L header for empty body when it's not mandatory
2023-04-21BUG/MINOR: http-check: Don't set HTX_SL_F_BODYLESS flag with a log-format body
2023-04-21BUG/MINOR: ring: do not realign ring contents on resize
2023-04-21BUG/MINOR: cache: Check cache entry is complete in case of Vary
2023-04-21BUG/MINOR: cache: Cache response even if request has "no-cache" directive
2023-04-21BUG/MINOR: mworker: prevent incorrect values in uptime
2023-04-21BUG/MEDIUM: sched: allow a bit more TASK_HEAVY to be processed when needed
2023-04-21BUG/MINOR: sched: properly report long_rq when tasks remain in the queue
2023-04-21BUG/MEDIUM: mworker: don't register mworker_accept_wrapper() when master FD is wrong
2023-04-21BUG/MINOR: mworker: stop doing strtok directly from the env
2023-04-14BUG/MINOR: ssl: ssl-(min|max)-ver parameter not duplicated for bundles in crt-list

Known bugs fixed in the development branch after the last commit in this branch

It is important to understand that not all of these commits are necessarily relevant to this version, but clicking on them will show the bug description. All fixes are made first in the development branch and then backported to the maintenance branches. This ensures no fix is lost when upgrading. If a fix was marked for backporting to this branch and is not there yet, it's likely that it is still missing. Do not hesitate to ask on the haproxy mailing list if you feel like a fix has been skipped.

DateSubject
2023-06-06BUG/MINOR: proxy/server: free default-server on deinit
2023-06-06BUG/MINOR: proxy: add missing interface bind free in free_proxy
2023-06-06BUG/MINOR: cfgparse-tcp: leak when re-declaring interface from bind line

Back to the list of branches and versions
Back to the HAProxy page