HAProxy known bugs for maintenance branch 2.0 :  0 

This is maintenance branch 2.0 whose latest version is 2.0.34. 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 2.0 version other than 2.0.34, you're running with known bugs.

Quick links

Versions available in this branch

This branch contains the following releases :

DateVersionComment
2023-12-192.0.34 ⇐ last
2023-08-192.0.33 
2023-06-122.0.32 
2023-02-142.0.31 
2022-12-092.0.30 
2022-05-132.0.29 
2022-03-142.0.28 
2022-01-262.0.27 
2021-12-032.0.26 
2021-09-072.0.25 
2021-08-172.0.24 
2021-07-162.0.23 
2021-04-122.0.22 
2021-03-182.0.21 
2021-01-082.0.20 
2020-11-062.0.19 
2020-09-302.0.18 
2020-07-312.0.17 
2020-07-172.0.16 
2020-06-122.0.15 
2020-04-022.0.14 
2020-02-132.0.13 
2019-12-212.0.12 
2019-12-112.0.11 
2019-11-252.0.10 
2019-11-152.0.9 
2019-10-232.0.8 
2019-09-272.0.7 
2019-09-132.0.6 
2019-08-162.0.5 
2019-08-062.0.4 
2019-07-232.0.3 
2019-07-162.0.2 
2019-06-262.0.1 
2019-06-162.0.0 

Fixes for known bugs pending in this branch since the last release (2.0.34)

These fixes have already been queued for the next 2.0 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
0 0 0 0 0

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

Merge dateSubject - Severity (minor, medium, major, critical)

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
2024-03-01BUG/MINOR: tools: seed the statistical PRNG slightly better
2024-03-01BUG/MINOR: hlua: Fix log level to the right value when set via TXN:set_loglevel
2024-03-01BUG/MINOR: config/quic: Alert about PROXY protocol use on a QUIC listener
2024-02-28BUG/MINOR: mux-h1: Properly report when mux is blocked during a nego
2024-02-28BUG/MEDIUM: mux-h1: Fix again 0-copy forwarding of chunks with an unknown size
2024-02-27BUG/MINOR: ssl/cli: duplicate cleaning code in cli_parse_del_crtlist
2024-02-27BUG/MEDIUM: server: fix dynamic servers initial settings
2024-02-26BUG/MAJOR: ssl/ocsp: crash with ocsp when old process exit or using ocsp CLI
2024-02-26BUG/MEDIUM: applet: Fix HTX .rcv_buf callback function to release outbuf buffer
2024-02-23BUG/MINOR: ist: only store NUL byte on succeeded alloc
2024-02-23BUG/MINOR: quic: fix output of show quic
2024-02-23BUG/MAJOR: cli: Restore non-interactive mode behavior with pipelined commands
2024-02-23BUG/MEDIUM: cli: Warn if pipelined commands are delimited by a \n
2024-02-23BUG/MEDIUM: mux-quic: do not crash on qcs_destroy for connection error
2024-02-22BUG/MAJOR: server: fix stream crash due to deleted server
2024-02-22BUG/MAJOR: promex: fix crash on deleted server
2024-02-22BUG/MINOR: stats: drop srv refcount on early release
2024-02-22BUG/MINOR: ist: allocate nul byte on istdup
2024-02-22BUG/MINOR: log: fix potential lf->name memory leak
2024-02-21BUG/MEDIUM: mux-h1: Don't emit 0-CRLF chunk in h1_done_ff() when iobuf is empty
2024-02-21BUG/MINOR: quic: initialize msg_flags before sendmsg
2024-02-19BUG/MEDIUM: quic: fix transient send error with listener socket
2024-02-16BUG/MEDIUM: hlua: Don't loop if a lua socket does not consume received data
2024-02-16BUG/MEDIUM: hlua: Be able to garbage collect uninitialized lua sockets
2024-02-16BUG/MEDIUM: applet: Immediately free appctx on early error
2024-02-15BUG/MINOR: qpack: reject invalid dynamic table capacity
2024-02-15BUG/MINOR: qpack: reject invalid increment count decoding
2024-02-15BUG/MINOR: quic: reject HANDSHAKE_DONE as server
2024-02-15BUG/MINOR: quic: reject unknown frame type
2024-02-14BUG/MAJOR: stconn: Check support for zero-copy forwarding on both sides
2024-02-14BUG/MEDIUM: stconn: Don't check pending shutdown to wake an applet up
2024-02-14BUG/MEDIUM: stconn: Allow expiration update when READ/WRITE event is pending
2024-02-14BUG/MEDIUM: stconn/applet: Block 0-copy forwarding if producer needs more room
2024-02-14BUG/MEDIUM: applet: Add a flag to state an applet is using zero-copy forwarding
2024-02-14BUG/MAJOR: mux-h1: Fix zero-copy forwarding when sending chunks of unknown size
2024-02-12BUG/MEDIUM: quic: Wrong K CUBIC calculation.
2024-02-12BUG/MEDIUM: ssl: Fix crash when calling "update ssl ocsp-response" when an update is ongoing
2024-02-10BUG/MEDIUM: pool: fix rare risk of deadlock in pool_flush()
2024-02-09BUG/MINOR: applet: Always release empty appctx buffers after processing
2024-02-08BUG/MEDIUM: cli: fix once for all the problem of missing trailing LFs
2024-02-08BUG/MINOR: vars/cli: fix missing LF after "get var" output
2024-02-08BUG/MINOR: server/cli: add missing LF at the end of certain notice/error lines
2024-02-08BUG/MINOR: mux-h2: count rejected DATA frames against the connection's flow control
2024-02-07BUG/MINOR: ssl: Reenable ocsp auto-update after an "add ssl crt-list"
2024-02-07BUG/MINOR: ssl: Destroy ckch instances before the store during deinit
2024-02-07BUG/MEDIUM: ocsp: Separate refcount per instance and per store
2024-02-07BUG/MINOR: ssl: Clear the ckch instance when deleting a crt-list line
2024-02-07BUG/MINOR: ssl: Duplicate ocsp update mode when dup'ing ckch
2024-02-07BUG/MINOR: quic: fix possible integer wrap around in cubic window calculation
2024-02-05DEBUG: make the "debug dev {debug|warn|check}" command print a message
2024-02-05MINOR: debug: add an optional message argument to the BUG_ON() family
2024-02-05BUG/MINOR: ssl: Fix error message after ssl_sock_load_ocsp call
2024-02-05MINOR: debug: make BUG_ON() catch build errors even without DEBUG_STRICT
2024-02-05BUILD: quic: Variable name typo inside a BUG_ON().
2024-02-05BUG/MINOR: quic: Wrong ack ranges handling when reaching the limit.
2024-02-03BUG/MINOR: diag: run the final diags before quitting when using -c
2024-02-03BUG/MINOR: diag: always show the version before dumping a diag warning
2024-01-31BUG/MINOR: ssl/quic: fix 0RTT define
2024-01-31BUG/MEDIUM: h1: always reject the NUL character in header values
2024-01-31BUG/MINOR: h1-htx: properly initialize the err_pos field
2024-01-30BUG/MEDIUM: h1: Don't support LF only to mark the end of a chunk size
2024-01-30BUG/MINOR: h1: Don't support LF only at the end of chunks
2024-01-29BUG/MEDIUM: quic: fix crash on invalid qc_stream_buf_free() BUG_ON
2024-01-29BUG/MEDIUM: qpack: allow 6xx..9xx status codes
2024-01-29BUG/MEDIUM: h3: do not crash on invalid response status code
2024-01-29BUG/MAJOR: ssl_sock: Always clear retry flags in read/write functions
2024-01-26BUG/MEDIUM: quic: remove unsent data from qc_stream_desc buf
2024-01-25BUG/MINOR: quic: newreno QUIC congestion control algorithm no more available
2024-01-24BUG/MEDIUM: cache: Fix crash when deleting secondary entry
2024-01-24BUG/MINOR: hlua: fix uninitialized var in hlua_core_get_var()
2024-01-24BUG/MINOR: jwt: fix jwt_verify crash on 32-bit archs
2024-01-24BUG/MEDIUM: cli: some err/warn msg dumps add LR into CSV output on stat's CLI
2024-01-18BUG/MEDIUM: mux-h2: refine connection vs stream error on headers
2024-01-16BUG/MEDIUM: quic: keylog callback not called (USE_OPENSSL_COMPAT)
2024-01-12BUG/MINOR: mux-h2: also count streams for refused ones
2024-01-12BUG/MINOR: mux-quic: do not prevent non-STREAM sending on flow control
2024-01-10BUG/MINOR: map: list-based matching potential ordering regression
2024-01-05BUG/MEDIUM: spoe: Never create new spoe applet if there is no server up
2024-01-05BUG/MEDIUM: stconn: Set fsb date if zero-copy forwarding is blocked during nego
2024-01-05BUG/MEDIUM: stconn: Forward shutdown on write timeout only if it is forwardable
2024-01-04BUG/MEDIUM: h3: fix incorrect snd_buf return value
2024-01-02BUG/MINOR: server: fix server_find_by_name() usage during parsing
2023-12-22BUG/MINOR: h3: disable fast-forward on buffer alloc failure
2023-12-22BUG/MINOR: h3: close connection on sending alloc errors
2023-12-22BUG/MINOR: h3: close connection on header list too big
2023-12-21BUG/MINOR: quic: Missing call to TLS message callbacks
2023-12-21BUG/MINOR: quic: Wrong keylog callback setting.
2023-12-21BUG/MINOR: mux-quic: disable fast-fwd if connection on error
2023-12-21MEDIUM: mux-quic: add BUG_ON if sending on locally closed QCS
2023-12-21BUG/MINOR: mux-quic: always report error to SC on RESET_STREAM emission
2023-12-21BUG/MEDIUM: server/dns: perform svc_port updates atomically from SRV records
2023-12-21BUG/MINOR: server/dns: use server_set_inetaddr() to unset srv addr from DNS
2023-12-21BUG/MINOR: server/event_hdl: propagate map port info through inetaddr event
2023-12-21BUG/MEDIUM: stats: unhandled switching rules with TCP frontend
2023-12-21BUG/MAJOR: stconn: Disable zero-copy forwarding if consumer is shut or in error
2023-12-20BUG/MINOR: h3: properly handle alloc failure on finalize
2023-12-20BUG/MINOR: server: Use the configured address family for the initial resolution

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