HAProxy known bugs for maintenance branch 2.4 :  17 

This is maintenance branch 2.4 whose latest version is 2.4.24. 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 2.4.24, you're running with known bugs.

Quick links

Versions available in this branch

This branch contains the following releases :

DateVersionComment
2023-08-192.4.24 ⇐ last
2023-06-092.4.23 
2023-02-142.4.22 
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 (2.4.24)

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
17 0 1 7 9

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

Merge dateSubject - Severity (minor, medium, major, critical)
2023-11-24BUG/MEDIUM: listener/proxy: fix listeners notify for proxy resume (2nd try)
2023-10-04BUG/MINOR: server: add missing free for server->rdr_pfx
2023-10-04BUG/MAJOR: mux-h2: Report a protocol error for any DATA frame before headers
2023-10-04BUG/MINOR: freq_ctr: fix possible negative rate with the scaled API
2023-10-04BUG/MINOR: promex: fix backend_agg_check_status
2023-10-04BUG/MEDIUM: mux-fcgi: Don't swap trash and dbuf when handling STDERR records
2023-10-04BUG/MINOR: hlua/init: coroutine may not resume itself
2023-10-04BUG/MEDIUM: hlua: don't pass stale nargs argument to lua_resume()
2023-10-04BUG/MEDIUM: hlua: streams don't support mixing lua-load with lua-load-per-thread
2023-10-04BUG/MINOR: hlua/action: incorrect message on E_YIELD error
2023-10-04BUG/MEDIUM: stconn/stream: Forward shutdown on write timeout
2023-10-04BUG/MEDIUM: stconn: Wake applets on sending path if there is a pending shutdown
2023-10-04BUG/MINOR: ssl_sock: fix possible memory leak on OOM
2023-10-04BUG/MINOR: hlua_fcn: potentially unsafe stktable_data_ptr usage
2023-10-04BUG/MINOR: stktable: allow sc-set-gpt(0) from tcp-request connection
2023-10-04BUG/MINOR: hlua: fix invalid use of lua_pop on error paths
2023-09-04BUG/MEDIUM: dns: Be sure to unlock DSS when existing dns_session_io_handler()

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
2023-12-05BUG/MEDIUM: peers: fix partial message decoding
2023-12-01BUG/MINOR: server/event_hdl: properly handle AF_UNSPEC for INETADDR event
2023-12-01BUG/MINOR: sample: Make the `word` converter compatible with `-m found`
2023-12-01DEBUG: stream: Report lra/fsb values for front end back SC in stream dump
2023-12-01BUG/MINOR: cfgparse-listen: fix warning being reported as an alert
2023-11-30DEBUG: unstatify a few functions that are often present in backtraces
2023-11-30BUG/MINOR: config: Stopped parsing upon unmatched environment variables
2023-11-30BUG/MINOR: quic_tp: fix preferred_address decoding
2023-11-30BUG/MINOR: acme.sh: update the deploy script
2023-11-29BUG/MEDIUM: cli: Don't look for payload pattern on empty commands
2023-11-29BUG/MINOR: h3: always reject PUSH_PROMISE
2023-11-29BUG/MINOR: h3: fix TRAILERS encoding
2023-11-29BUG/MEDIUM: mux-quic: Stop zero-copy FF during nego if input is not empty
2023-11-29BUG/MEDIUM: master/cli: Properly pin the master CLI on thread 1 / group 1
2023-11-29BUG/MINOR: compression: possible NULL dereferences in comp_prepare_compress_request()
2023-11-29BUG/MAJOR: server/addr: fix a race during server addr:svc_port updates
2023-11-29BUG/MEDIUM: server/event_hdl: memory overrun in _srv_event_hdl_prepare_inetaddr()
2023-11-28BUG/MINOR: cache: Remove incomplete entries from the cache when stream is closed
2023-11-28BUG/MEDIUM: mux-h2: Remove H2_SF_NOTIFIED flag for H2S blocked on fast-forward
2023-11-28BUG/MEDIUM: stconn: Don't perform zero-copy FF if opposite SC is blocked
2023-11-28BUG/MINOR: quic: fix CONNECTION_CLOSE_APP encoding
2023-11-27BUG/MEDIUM: mux-h1: Properly ignore trailers when a content-length is announced

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