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HAProxy known bugs for version v2.7.10 (maintenance branch 2.7) :  185 

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.

Quick links

• full changelog for 2.7 : here
• browse history for 2.7 : here

Other versions in the same branch

Date	Version	Comment
2024-04-05	2.7.12	⇐ last
2023-12-07	2.7.11
2023-08-09	2.7.10	⇐ yours
2023-06-07	2.7.9
2023-05-02	2.7.8
2023-04-27	2.7.7
2023-03-28	2.7.6
2023-03-17	2.7.5
2023-03-10	2.7.4
2023-02-14	2.7.3
2023-01-20	2.7.2
2022-12-19	2.7.1
2022-12-01	2.7.0

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

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

• MINOR: the bug presents a limited impact and can easily be mitigated ; users rarely upgrade just for these ones ;
• MEDIUM: the bug can cause some undesired behaviour and may require some tricky configuration changes to avoid hitting it ; users normally upgrade to get rid of them, or temporarily disable a functionality.
• MAJOR: the bug affects short term reliability and cannot easily be worked around without a significant performance penalty or without a significant functional loss ; such bugs don't stay long in the queue without a release and users must plan an upgrade as soon as possible ;
• CRITICAL: this one very rarely happens ; it indicates a short-term reliability or security issue for which there is no workaround. A release will be emitted for this fix even if it's alone and users are urged to upgrade immediately. Some distro maintainers might have been informed in advance in order to agree on a coordinated release date.

Total known bugs in this version by category :

Total	CRITICAL	MAJOR	MEDIUM	MINOR
185	0	7	67	111

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

Merge date	Subject - Severity (minor, medium, major, critical)
2024-04-05	BUG/MINOR: proxy: fix logformat expression leak in use_backend rules
2024-04-05	BUG/MEDIUM: hlua: streams don't support mixing lua-load with lua-load-per-thread (2nd try)
2024-04-05	DEBUG: lua: precisely identify if stream is stuck inside lua or not
2024-04-03	BUG/MINOR: backend: properly handle redispatch 0
2024-04-03	BUG/MINOR: server: ignore 'enabled' for dynamic servers
2024-03-29	BUG/MEDIUM: cli: Warn if pipelined commands are delimited by a \n
2024-03-29	BUG/MINOR: server: 'source' interface ignored from 'default-server' directive
2024-03-29	BUG/MEDIUM: mux-fcgi: Properly handle EOM flag on end-of-trailers HTX block
2024-03-29	BUG/MINOR: mux-quic: close all QCS before freeing QCC tasklet
2024-03-29	BUG/MINOR: session: ensure conn owner is set after insert into session
2024-03-29	BUG/MEDIUM: spoe: Return an invalid frame on recv if size is too small
2024-03-29	BUG/MINOR: spoe: Be sure to be able to quickly close IDLE applets on soft-stop
2024-03-29	BUG/MEDIUM: spoe: Don't rely on stream's expiration to detect processing timeout
2024-03-29	BUG/MINOR: listener: Don't schedule frontend without task in listener_release()
2024-03-29	BUG/MINOR: listener: Wake proxy's mngmt task up if necessary on session release
2024-03-29	BUG/MINOR: hlua: fix missing lock in hlua_filter_delete()
2024-03-29	BUG/MINOR: hlua: missing lock in hlua_filter_new()
2024-03-29	BUG/MINOR: hlua: segfault when loading the same filter from different contexts
2024-03-29	BUG/MINOR: ssl: fix possible ctx memory leak in sample_conv_aes_gcm()
2024-03-29	BUG/MINOR: cfgparse: report proper location for log-format-sd errors
2024-03-29	BUG/MINOR: ssl/cli: typo in new ssl crl-file CLI description
2024-03-29	BUG/MAJOR: hlua: improper lock usage with hlua_ctx_resume()
2024-03-29	BUG/MEDIUM: hlua: improper lock usage with SET_SAFE_LJMP()
2024-03-29	BUG/MINOR: hlua: improper lock usage in hlua_filter_new()
2024-03-29	BUG/MINOR: hlua: improper lock usage in hlua_filter_callback()
2024-03-29	BUG/MINOR: hlua: fix possible crash in hlua_filter_new() under load
2024-03-29	BUG/MINOR: hlua: don't use lua_tostring() from unprotected contexts
2024-03-29	BUG/MINOR: hlua: fix unsafe lua_tostring() usage with empty stack
2024-03-29	BUG/MINOR: tools: seed the statistical PRNG slightly better
2024-03-29	BUG/MINOR: hlua: Fix log level to the right value when set via TXN:set_loglevel
2024-03-29	BUG/MINOR: ssl/cli: duplicate cleaning code in cli_parse_del_crtlist
2024-03-29	BUG/MINOR: ist: only store NUL byte on succeeded alloc
2024-03-29	BUG/MINOR: quic: fix output of show quic
2024-03-29	BUG/MAJOR: server: fix stream crash due to deleted server
2024-03-29	BUG/MINOR: stats: drop srv refcount on early release
2024-03-29	BUG/MINOR: ist: allocate nul byte on istdup
2024-03-29	BUG/MEDIUM: quic: fix transient send error with listener socket
2024-03-29	BUG/MEDIUM: hlua: Don't loop if a lua socket does not consume received data
2024-03-29	BUG/MEDIUM: hlua: Be able to garbage collect uninitialized lua sockets
2024-03-29	BUG/MEDIUM: applet: Immediately free appctx on early error
2024-03-29	BUG/MINOR: qpack: reject invalid dynamic table capacity
2024-03-29	BUG/MINOR: qpack: reject invalid increment count decoding
2024-03-29	BUG/MINOR: quic: reject HANDSHAKE_DONE as server
2024-03-29	BUG/MINOR: quic: reject unknown frame type
2024-03-29	BUG/MAJOR: promex: fix crash on deleted server
2024-03-29	BUG/MINOR: ext-check: cannot use without preserve-env
2024-03-29	BUG/MINOR: diag: run the final diags before quitting when using -c
2024-03-29	BUG/MEDIUM: quic: Wrong K CUBIC calculation.
2024-03-29	BUG/MINOR: quic: fix possible integer wrap around in cubic window calculation
2024-03-29	BUG/MINOR: quic: Wrong ack ranges handling when reaching the limit.
2024-03-29	BUG/MEDIUM: quic: fix crash on invalid qc_stream_buf_free() BUG_ON
2024-03-29	BUG/MEDIUM: qpack: allow 6xx..9xx status codes
2024-03-29	BUG/MEDIUM: h3: do not crash on invalid response status code
2024-03-29	BUG/MEDIUM: quic: remove unsent data from qc_stream_desc buf
2024-03-29	BUG/MEDIUM: mux-quic: report early error on stream
2024-03-29	BUG/MINOR: h3: fix checking on NULL Tx buffer
2024-03-29	BUG/MINOR: ssl: Clear the ckch instance when deleting a crt-list line
2024-03-29	BUG/MAJOR: ssl_sock: Always clear retry flags in read/write functions
2024-03-29	BUG/MEDIUM: h1: always reject the NUL character in header values
2024-03-29	BUG/MINOR: h1-htx: properly initialize the err_pos field
2024-03-29	BUG/MEDIUM: h1: Don't support LF only to mark the end of a chunk size
2024-03-29	BUG/MINOR: h1: Don't support LF only at the end of chunks
2024-03-29	BUG/MEDIUM: pool: fix rare risk of deadlock in pool_flush()
2024-03-29	BUG/MINOR: jwt: fix jwt_verify crash on 32-bit archs
2024-03-29	BUG/MEDIUM: cli: fix once for all the problem of missing trailing LFs
2024-03-29	BUG/MINOR: vars/cli: fix missing LF after "get var" output
2024-03-29	BUG/MEDIUM: cli: some err/warn msg dumps add LR into CSV output on stat's CLI
2024-03-29	MINOR: debug: make BUG_ON() catch build errors even without DEBUG_STRICT
2024-01-17	BUG/MINOR: mux-quic: do not prevent non-STREAM sending on flow control
2024-01-17	BUG/MEDIUM: spoe: Never create new spoe applet if there is no server up
2024-01-17	BUG/MEDIUM: stconn: Forward shutdown on write timeout only if it is forwardable
2024-01-17	BUG/MEDIUM: h3: fix incorrect snd_buf return value
2024-01-17	BUG/MINOR: h3: close connection on sending alloc errors
2024-01-17	BUG/MINOR: h3: properly handle alloc failure on finalize
2024-01-17	BUG/MINOR: h3: close connection on header list too big
2024-01-17	BUG/MINOR: mux-quic: always report error to SC on RESET_STREAM emission
2024-01-17	BUG/MEDIUM: stats: unhandled switching rules with TCP frontend
2024-01-17	BUG/MINOR: resolvers: default resolvers fails when network not configured
2024-01-17	BUG/MEDIUM: mux-h2: Report too large HEADERS frame only when rxbuf is empty
2024-01-17	BUG/MEDIUM: quic: QUIC CID removed from tree without locking
2024-01-17	BUG/MINOR: mworker/cli: fix set severity-output support
2023-12-07	BUG/MEDIUM: proxy: always initialize the default settings after init
2023-12-07	BUG/MINOR: quic: Possible leak of TX packets under heavy load
2023-12-07	BUG/MEDIUM: quic: Possible crash during retransmissions and heavy load
2023-12-07	BUG/MINOR: cache: Remove incomplete entries from the cache when stream is closed
2023-12-07	BUG/MINOR: sample: Make the `word` converter compatible with `-m found`
2023-12-07	BUG/MINOR: cfgparse-listen: fix warning being reported as an alert
2023-12-07	BUG/MINOR: config: Stopped parsing upon unmatched environment variables
2023-12-07	BUG/MINOR: quic_tp: fix preferred_address decoding
2023-12-07	BUG/MINOR: h3: always reject PUSH_PROMISE
2023-12-07	BUG/MINOR: h3: fix TRAILERS encoding
2023-12-07	BUG/MINOR: quic: fix CONNECTION_CLOSE_APP encoding
2023-12-07	BUG/MINOR: server: do not leak default-server in defaults sections
2023-12-07	BUG/MINOR: quic: Possible RX packet memory leak under heavy load
2023-12-07	BUG/MEDIUM: quic: Possible crash for connections to be killed
2023-12-07	BUG/MINOR: sock: mark abns sockets as non-suspendable and always unbind them
2023-12-07	BUG/MINOR: startup: set GTUNE_SOCKET_TRANSFER correctly
2023-12-07	BUG/MINOR: proxy/stktable: missing frees on proxy cleanup
2023-12-07	BUG/MINOR: stream/cli: report correct stream age in "show sess"
2023-12-07	BUG/MEDIUM: mux-fcgi: fail earlier on malloc in takeover()
2023-12-07	BUG/MEDIUM: mux-h1: fail earlier on malloc in takeover()
2023-12-07	BUG/MEDIUM: mux-h2: fail earlier on malloc in takeover()
2023-12-07	BUG/MAJOR: quic: complete thread migration before tcp-rules
2023-11-20	BUG/MINOR: stconn: Use HTX-aware channel's functions to get info on buffer
2023-11-20	BUG/MINOR: stconn: Fix streamer detection for HTX streams
2023-11-15	BUG/MEDIUM: quic: fix sslconns on quic_conn alloc failure
2023-11-15	BUG/MEDIUM: quic: fix actconn on quic_conn alloc failure
2023-11-14	BUG/MEDIUM: stream: Don't call mux .ctl() callback if not implemented
2023-11-14	BUG/MEDIUM: mworker: set the master variable earlier
2023-11-14	BUG/MINOR: http-client: Don't forget to commit changes on HTX message
2023-11-14	BUG/MEDIUM: stream: Properly handle abortonclose when set on backend only
2023-11-14	BUG/MINOR: stconn: Handle abortonclose if backend connection was already set up
2023-11-14	BUG/MEDIUM: connection: report connection errors even when no mux is installed
2023-11-14	BUG/MINOR: sink: don't learn srv port from srv addr
2023-11-14	BUG/MEDIUM: applet: Remove appctx from buffer wait list on release
2023-11-14	BUG/MINOR: quic: fix retry token check inconsistency
2023-11-14	BUG/MEDIUM: quic: Avoid some crashes upon TX packet allocation failures
2023-11-14	BUG/MEDIUM: quic: Possible crashes when sending too short Initial packets
2023-11-14	BUG/MEDIUM: quic: Avoid trying to send ACK frames from an empty ack ranges tree
2023-11-14	BUG/MINOR: quic: idle timer task requeued in the past
2023-11-14	BUG/MEDIUM: pool: fix releasable pool calculation when overloaded
2023-11-14	BUG/MEDIUM: freq-ctr: Don't report overshoot for long inactivity period
2023-11-14	BUG/MINOR: mux-h1: Properly handle http-request and http-keep-alive timeouts
2023-11-14	BUG/MINOR: stick-table/cli: Check for invalid ipv4 key
2023-11-14	BUG/MEDIUM: pattern: don't trim pools under lock in pat_ref_purge_range()
2023-11-14	BUG/MINOR: cfgparse/stktable: fix error message on stktable_init() failure
2023-11-14	BUG/MINOR: stktable: missing free in parse_stick_table()
2023-11-14	BUG/MINOR: tcpcheck: Report hexstring instead of binary one on check failure
2023-11-14	BUG/MEDIUM: ssl: segfault when cipher is NULL
2023-11-14	BUG/MINOR: mux-quic: fix early close if unset client timeout
2023-11-14	BUG/MINOR: ssl: suboptimal certificate selection with TLSv1.3 and dual ECDSA/RSA
2023-11-14	BUG/MINOR: ssl: use a thread-safe sslconns increment
2023-11-14	BUG/MINOR: quic: do not consider idle timeout on CLOSING state
2023-11-14	BUG/MEDIUM: server: "proto" not working for dynamic servers
2023-11-14	DEBUG: mux-h2/flags: fix list of h2c flags used by the flags decoder
2023-11-14	BUG/MINOR: ssl: load correctly @system-ca when ca-base is define
2023-10-27	BUG/MINOR: mux-h2: update tracked counters with req cnt/req err
2023-10-27	BUG/MINOR: mux-h2: commit the current stream ID even on reject
2023-10-27	BUG/MEDIUM: peers: Fix synchro for huge number of tables
2023-10-27	BUG/MEDIUM: peers: Be sure to always refresh recconnect timer in sync task
2023-10-27	BUG/MINOR: trace: fix trace parser error reporting
2023-10-27	BUG/MINOR: mux-h2: fix http-request and http-keep-alive timeouts again
2023-10-27	BUG/MEDIUM: mux-h2: Don't report an error on shutr if a shutw is pending
2023-10-27	BUG/MINOR: mux-h2: make up other blocked streams upon removal from list
2023-10-27	BUG/MINOR: mux-h1: Send a 400-bad-request on shutdown before the first request
2023-10-27	BUG/MEDIUM: quic-conn: free unsent frames on retransmit to prevent crash
2023-10-27	BUG/MINOR: mux-quic: fix free on qcs-new fail alloc
2023-10-27	BUG/MINOR: h3: strengthen host/authority header parsing
2023-10-27	BUG/MINOR: mux-quic: support initial 0 max-stream-data
2023-10-27	BUG/MEDIUM: mux-quic: fix RESET_STREAM on send-only stream
2023-10-27	BUG/MINOR: quic: reject packet with no frame
2023-10-27	BUG/MINOR: quic: Avoid crashing with unsupported cryptographic algos
2023-10-27	BUG/MINOR: hq-interop: simplify parser requirement
2023-10-27	BUG/MEDIUM: h1: Ignore C-L value in the H1 parser if T-E is also set
2023-10-27	BUG/MINOR: mux-h1: Ignore C-L when sending H1 messages if T-E is also set
2023-10-27	BUG/MINOR: mux-h1: Handle read0 in rcv_pipe() only when data receipt was tried
2023-10-27	BUG/MEDIUM: hlua: Initialize appctx used by a lua socket on connect only
2023-10-27	BUG/MEDIUM: http-ana: Try to handle response before handling server abort
2023-10-17	BUG/MEDIUM: quic_conn: let the scheduler kill the task when needed
2023-10-06	BUG/MEDIUM: actions: always apply a longest match on prefix lookup
2023-10-04	BUG/MINOR: mux-quic: remove full demux flag on ncbuf release
2023-10-04	BUG/MEDIUM: server/cli: don't delete a dynamic server that has streams
2023-10-04	BUG/MINOR: server: add missing free for server->rdr_pfx
2023-10-04	BUG/MAJOR: mux-h2: Report a protocol error for any DATA frame before headers
2023-10-04	BUG/MINOR: freq_ctr: fix possible negative rate with the scaled API
2023-10-04	BUG/MINOR: promex: fix backend_agg_check_status
2023-10-04	BUG/MEDIUM: mux-fcgi: Don't swap trash and dbuf when handling STDERR records
2023-10-04	BUG/MINOR: hlua/init: coroutine may not resume itself
2023-10-04	BUG/MEDIUM: hlua: don't pass stale nargs argument to lua_resume()
2023-09-29	Revert "BUG/MEDIUM: quic: missing check of dcid for init pkt including a token"
2023-09-29	BUG/MEDIUM: hlua: streams don't support mixing lua-load with lua-load-per-thread
2023-09-29	BUG/MINOR: quic: Wrong cluster secret initialization
2023-09-29	BUG/MINOR: quic: Leak of frames to send.
2023-09-29	BUILD: bug: make BUG_ON() void to avoid a rare warning
2023-09-07	BUG/MINOR: hlua/action: incorrect message on E_YIELD error
2023-09-07	BUG/MEDIUM: stconn/stream: Forward shutdown on write timeout
2023-09-07	BUG/MINOR: quic: Wrong RTT computation (srtt and rrt_var)
2023-09-07	BUG/MINOR: quic: Wrong RTT adjusments
2023-09-07	BUG/MEDIUM: h1-htx: Ensure chunked parsing with full output buffer
2023-09-07	BUG/MAJOR: quic: Really ignore malformed ACK frames.
2023-09-07	BUG/MINOR: quic: Possible skipped RTT sampling
2023-09-07	BUG/MEDIUM: stconn: Don't block sends if there is a pending shutdown
2023-09-07	BUG/MEDIUM: stconn: Wake applets on sending path if there is a pending shutdown
2023-09-07	BUG/MINOR: checks: do not queue/wake a bounced check
2023-09-07	BUG/MINOR: ssl/cli: can't find ".crt" files when replacing a certificate
2023-09-07	BUG/MINOR: ssl_sock: fix possible memory leak on OOM
2023-09-07	BUG/MINOR: hlua_fcn: potentially unsafe stktable_data_ptr usage
2023-09-07	BUG/MINOR: stktable: allow sc-set-gpt(0) from tcp-request connection
2023-09-07	BUG/MINOR: hlua: fix invalid use of lua_pop on error paths
2023-09-07	BUG/MEDIUM: quic: fix tasklet_wakeup loop on connection closing

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