HAProxy known bugs for version v2.9.5 (maintenance branch 2.9) :  68 

This version (2.9.5) is a release belonging to maintenance branch 2.9 whose latest version is 2.9.7. 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
2024-04-052.9.7 ⇐ last
2024-02-262.9.6 
2024-02-152.9.5 ⇐ yours
2024-01-312.9.4 
2024-01-182.9.3 
2024-01-112.9.2 
2023-12-152.9.1 
2023-12-052.9.0 

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

These fixes have already been queued for a more recent 2.9 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
68 0 7 19 42

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

Merge dateSubject - Severity (minor, medium, major, critical)
2024-04-08BUG/MINOR: cli: Report an error to user if command or payload is too big
2024-04-08BUG/MAJOR: connection: fix server used_conns with H2 + reuse safe
2024-04-08BUG/MEDIUM: http_ana: ignore NTLM for reuse aggressive/always and no H1
2024-04-08BUG/MAJOR: server: do not delete srv referenced by session
2024-04-08BUG/MEDIUM: ssl: Fix crash when calling "update ssl ocsp-response" when an update is ongoing
2024-04-08BUG/MAJOR: ocsp: Separate refcount per instance and per store
2024-04-08BUG/MEDIUM: quic: fix connection freeze on post handshake
2024-04-08BUG/MEDIUM: server: fix dynamic servers initial settings
2024-04-05BUG/MINOR: init: relax LSTCHK_NETADM checks for non root
2024-04-05BUG/MINOR: proxy: fix logformat expression leak in use_backend rules
2024-04-03BUG/MEDIUM: stick-table: use the update lock when reading tables from peers
2024-04-03BUG/MEDIUM: stconn: Don't forward shutdown to SE if iobuf is not empty
2024-04-03BUG/MINOR: backend: properly handle redispatch 0
2024-04-03BUG/MEDIUM: stick-tables: fix a small remaining race in expiration task
2024-04-03BUG/MINOR: log/balance: detect if user tries to use unsupported algo
2024-03-29BUG/MINOR: server: ignore 'enabled' for dynamic servers
2024-03-29BUG/MINOR: server: fix persistence cookie for dynamic servers
2024-03-29BUG/MINOR: ssl: Detect more 'ocsp-update' incompatibilities
2024-03-29BUG/MINOR: ssl: Wrong ocsp-update "incompatibility" error message
2024-03-26BUG/MINOR: server: 'source' interface ignored from 'default-server' directive
2024-03-26BUG/MEDIUM: mux-fcgi: Properly handle EOM flag on end-of-trailers HTX block
2024-03-26BUG/MINOR: mux-quic: close all QCS before freeing QCC tasklet
2024-03-26BUG/MEDIUM: ssl: Fix crash in ocsp-update log function
2024-03-26BUG/MINOR: session: ensure conn owner is set after insert into session
2024-03-26BUG/MEDIUM: spoe: Return an invalid frame on recv if size is too small
2024-03-26BUG/MINOR: spoe: Be sure to be able to quickly close IDLE applets on soft-stop
2024-03-26BUG/MEDIUM: spoe: Don't rely on stream's expiration to detect processing timeout
2024-03-26BUG/MINOR: listener: Don't schedule frontend without task in listener_release()
2024-03-26BUG/MINOR: listener: Wake proxy's mngmt task up if necessary on session release
2024-03-26BUG/MEDIUM: hlua: streams don't support mixing lua-load with lua-load-per-thread (2nd try)
2024-03-26DEBUG: lua: precisely identify if stream is stuck inside lua or not
2024-03-26BUG/MINOR: hlua: fix missing lock in hlua_filter_delete()
2024-03-26BUG/MINOR: hlua: missing lock in hlua_filter_new()
2024-03-26BUG/MINOR: hlua: segfault when loading the same filter from different contexts
2024-03-26CI: github: add -DDEBUG_LIST to the default builds
2024-03-26BUG/MINOR: ssl: fix possible ctx memory leak in sample_conv_aes_gcm()
2024-03-26BUG/MEDIUM: quic: fix handshake freeze under high traffic
2024-03-26BUG/MINOR: cfgparse: report proper location for log-format-sd errors
2024-03-26BUG/MINOR: ssl/cli: typo in new ssl crl-file CLI description
2024-03-26BUG/MINOR: sink: fix a race condition in the TCP log forwarding code
2024-03-26BUG/MINOR: hlua: don't call ha_alert() in hlua_event_subscribe()
2024-03-26BUG/MAJOR: hlua: improper lock usage with hlua_ctx_resume()
2024-03-26BUG/MEDIUM: hlua: improper lock usage with SET_SAFE_LJMP()
2024-03-26BUG/MINOR: hlua: improper lock usage in hlua_filter_new()
2024-03-26BUG/MINOR: hlua: improper lock usage in hlua_filter_callback()
2024-03-26BUG/MINOR: hlua: fix possible crash in hlua_filter_new() under load
2024-03-26BUG/MINOR: hlua: don't use lua_tostring() from unprotected contexts
2024-03-26BUG/MINOR: hlua: fix unsafe lua_tostring() usage with empty stack
2024-03-26BUG/MINOR: tools: seed the statistical PRNG slightly better
2024-03-26BUG/MINOR: hlua: Fix log level to the right value when set via TXN:set_loglevel
2024-03-26BUG/MINOR: config/quic: Alert about PROXY protocol use on a QUIC listener
2024-03-26BUG/MINOR: mux-h1: Properly report when mux is blocked during a nego
2024-03-26BUG/MINOR: ssl/cli: duplicate cleaning code in cli_parse_del_crtlist
2024-03-26BUG/MINOR: ist: only store NUL byte on succeeded alloc
2024-03-26BUG/MINOR: quic: fix output of show quic
2024-03-26BUG/MEDIUM: cli: Warn if pipelined commands are delimited by a \n
2024-03-26BUG/MAJOR: server: fix stream crash due to deleted server
2024-03-26BUG/MINOR: stats: drop srv refcount on early release
2024-03-26BUG/MINOR: ist: allocate nul byte on istdup
2024-03-26BUG/MEDIUM: quic: fix transient send error with listener socket
2024-03-26BUG/MEDIUM: hlua: Don't loop if a lua socket does not consume received data
2024-03-26BUG/MEDIUM: hlua: Be able to garbage collect uninitialized lua sockets
2024-03-26BUG/MEDIUM: applet: Immediately free appctx on early error
2024-03-26BUG/MINOR: qpack: reject invalid dynamic table capacity
2024-03-26BUG/MINOR: qpack: reject invalid increment count decoding
2024-03-26BUG/MINOR: quic: reject HANDSHAKE_DONE as server
2024-03-26BUG/MINOR: quic: reject unknown frame type
2024-03-12BUG/MINOR: mux-h2: count rejected DATA frames against the connection's flow control
2024-02-26BUG/MAJOR: ssl/ocsp: crash with ocsp when old process exit or using ocsp CLI
2024-02-22BUG/MAJOR: promex: fix crash on deleted server

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