HAProxy known bugs for version v2.6.16 (maintenance branch 2.6) :  79 

This version (2.6.16) is a release belonging to maintenance branch 2.6 whose latest version is 2.6.17. 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.

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Other versions in the same branch

This branch contains the following releases :

DateVersionComment
2024-04-052.6.17 ⇐ last
2023-12-132.6.16 ⇐ yours
2023-08-092.6.15 
2023-06-092.6.14 
2023-05-022.6.13 
2023-03-282.6.12 
2023-03-172.6.11 
2023-03-102.6.10 
2023-02-142.6.9 
2023-01-242.6.8 
2022-12-022.6.7 
2022-09-222.6.6 
2022-09-032.6.5 
2022-08-222.6.4 
2022-08-192.6.3 
2022-07-222.6.2 
2022-06-212.6.1 
2022-05-312.6.0 

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 :

Total known bugs in this version by category :

TotalCRITICALMAJORMEDIUMMINOR
79 0 4 29 46

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

Merge dateSubject - Severity (minor, medium, major, critical)
2024-04-08BUG/MEDIUM: cli: Warn if pipelined commands are delimited by a \n
2024-04-08BUG/MINOR: ext-check: cannot use without preserve-env
2024-04-08BUG/MEDIUM: quic: remove unsent data from qc_stream_desc buf
2024-04-08BUG/MEDIUM: mux-quic: report early error on stream
2024-04-08BUG/MEDIUM: cli: fix once for all the problem of missing trailing LFs
2024-04-05BUG/MINOR: proxy: fix logformat expression leak in use_backend rules
2024-04-05BUG/MEDIUM: hlua: streams don't support mixing lua-load with lua-load-per-thread (2nd try)
2024-04-05DEBUG: lua: precisely identify if stream is stuck inside lua or not
2024-04-03BUG/MINOR: backend: properly handle redispatch 0
2024-04-03BUG/MINOR: server: ignore 'enabled' for dynamic servers
2024-04-03BUG/MINOR: server: 'source' interface ignored from 'default-server' directive
2024-04-03BUG/MEDIUM: mux-fcgi: Properly handle EOM flag on end-of-trailers HTX block
2024-04-03BUG/MINOR: mux-quic: close all QCS before freeing QCC tasklet
2024-04-03BUG/MINOR: session: ensure conn owner is set after insert into session
2024-04-03BUG/MEDIUM: spoe: Return an invalid frame on recv if size is too small
2024-04-03BUG/MINOR: spoe: Be sure to be able to quickly close IDLE applets on soft-stop
2024-04-03BUG/MEDIUM: spoe: Don't rely on stream's expiration to detect processing timeout
2024-04-03BUG/MINOR: listener: Don't schedule frontend without task in listener_release()
2024-04-03BUG/MINOR: listener: Wake proxy's mngmt task up if necessary on session release
2024-04-03BUG/MINOR: hlua: fix missing lock in hlua_filter_delete()
2024-04-03BUG/MINOR: hlua: missing lock in hlua_filter_new()
2024-04-03BUG/MINOR: hlua: segfault when loading the same filter from different contexts
2024-04-03BUG/MINOR: ssl: fix possible ctx memory leak in sample_conv_aes_gcm()
2024-04-03BUG/MINOR: cfgparse: report proper location for log-format-sd errors
2024-04-03BUG/MINOR: ssl/cli: typo in new ssl crl-file CLI description
2024-04-03BUG/MAJOR: hlua: improper lock usage with hlua_ctx_resume()
2024-04-03BUG/MEDIUM: hlua: improper lock usage with SET_SAFE_LJMP()
2024-04-03BUG/MINOR: hlua: improper lock usage in hlua_filter_new()
2024-04-03BUG/MINOR: hlua: improper lock usage in hlua_filter_callback()
2024-04-03BUG/MINOR: hlua: fix possible crash in hlua_filter_new() under load
2024-04-03BUG/MINOR: hlua: don't use lua_tostring() from unprotected contexts
2024-04-03BUG/MINOR: hlua: fix unsafe lua_tostring() usage with empty stack
2024-04-03BUG/MINOR: tools: seed the statistical PRNG slightly better
2024-04-03BUG/MINOR: hlua: Fix log level to the right value when set via TXN:set_loglevel
2024-04-03BUG/MINOR: ssl/cli: duplicate cleaning code in cli_parse_del_crtlist
2024-04-03BUG/MINOR: ist: only store NUL byte on succeeded alloc
2024-04-03BUG/MAJOR: server: fix stream crash due to deleted server
2024-04-03BUG/MINOR: stats: drop srv refcount on early release
2024-04-03BUG/MINOR: ist: allocate nul byte on istdup
2024-04-03BUG/MEDIUM: hlua: Don't loop if a lua socket does not consume received data
2024-04-03BUG/MEDIUM: hlua: Be able to garbage collect uninitialized lua sockets
2024-04-03BUG/MEDIUM: applet: Immediately free appctx on early error
2024-04-03BUG/MINOR: qpack: reject invalid dynamic table capacity
2024-04-03BUG/MINOR: qpack: reject invalid increment count decoding
2024-04-03BUG/MINOR: quic: reject HANDSHAKE_DONE as server
2024-04-03BUG/MINOR: quic: reject unknown frame type
2024-04-03BUG/MAJOR: promex: fix crash on deleted server
2024-04-03BUG/MINOR: diag: run the final diags before quitting when using -c
2024-04-03BUG/MEDIUM: quic: Wrong K CUBIC calculation.
2024-04-03BUG/MINOR: quic: fix possible integer wrap around in cubic window calculation
2024-04-03BUG/MINOR: quic: Wrong ack ranges handling when reaching the limit.
2024-04-03BUG/MEDIUM: quic: fix crash on invalid qc_stream_buf_free() BUG_ON
2024-04-03BUG/MEDIUM: qpack: allow 6xx..9xx status codes
2024-04-03BUG/MEDIUM: h3: do not crash on invalid response status code
2024-04-03BUG/MINOR: h3: fix checking on NULL Tx buffer
2024-04-03BUG/MINOR: ssl: Clear the ckch instance when deleting a crt-list line
2024-04-03BUG/MAJOR: ssl_sock: Always clear retry flags in read/write functions
2024-04-03BUG/MEDIUM: h1: always reject the NUL character in header values
2024-04-03BUG/MEDIUM: h1: Don't support LF only to mark the end of a chunk size
2024-04-03BUG/MINOR: h1: Don't support LF only at the end of chunks
2024-04-03BUG/MINOR: h1-htx: properly initialize the err_pos field
2024-04-03BUG/MEDIUM: pool: fix rare risk of deadlock in pool_flush()
2024-04-03BUG/MINOR: jwt: fix jwt_verify crash on 32-bit archs
2024-04-03BUG/MINOR: vars/cli: fix missing LF after "get var" output
2024-04-03BUG/MEDIUM: cli: some err/warn msg dumps add LR into CSV output on stat's CLI
2024-04-03MINOR: debug: make BUG_ON() catch build errors even without DEBUG_STRICT
2024-01-19BUG/MINOR: mux-quic: do not prevent non-STREAM sending on flow control
2024-01-19BUG/MEDIUM: h3: fix regression which completely prevents any send
2024-01-17BUG/MEDIUM: spoe: Never create new spoe applet if there is no server up
2024-01-17BUG/MEDIUM: stconn: Forward shutdown on write timeout only if it is forwardable
2024-01-17BUG/MEDIUM: h3: fix incorrect snd_buf return value
2024-01-17BUG/MINOR: h3: close connection on sending alloc errors
2024-01-17BUG/MINOR: h3: properly handle alloc failure on finalize
2024-01-17BUG/MINOR: h3: close connection on header list too big
2024-01-17BUG/MEDIUM: stats: unhandled switching rules with TCP frontend
2024-01-17BUG/MINOR: resolvers: default resolvers fails when network not configured
2024-01-17BUG/MEDIUM: mux-h2: Report too large HEADERS frame only when rxbuf is empty
2024-01-17BUG/MINOR: mworker/cli: fix set severity-output support
2024-01-17BUG/MEDIUM: proxy: always initialize the default settings after init
2024-01-17BUG/MEDIUM: mworker: set the master variable earlier
2024-01-17BUG/MEDIUM: connection: report connection errors even when no mux is installed

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