HAProxy known bugs for maintenance branch 2.8 :  60 

This is maintenance branch 2.8 whose latest version is 2.8.9. 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 2.8 version other than 2.8.9, you're running with known bugs.

Quick links

Versions available in this branch

This branch contains the following releases :

DateVersionComment
2024-04-052.8.9 ⇐ last
2024-04-052.8.8 
2024-02-262.8.7 
2024-02-152.8.6 
2023-12-072.8.5 
2023-11-172.8.4 
2023-09-072.8.3 
2023-08-092.8.2 
2023-07-032.8.1 
2023-05-312.8.0 

Fixes for known bugs pending in this branch since the last release (2.8.9)

These fixes have already been queued for the next 2.8 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
60 0 3 20 37

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

Merge dateSubject - Severity (minor, medium, major, critical)
2024-06-07BUG/MEDIUM: quic: don't blindly rely on unaligned accesses
2024-06-07BUG/MAJOR: connection: fix server used_conns with H2 + reuse safe
2024-06-07BUG/MEDIUM: http_ana: ignore NTLM for reuse aggressive/always and no H1
2024-06-07BUG/MAJOR: server: do not delete srv referenced by session
2024-06-07BUG/MEDIUM: quic: fix connection freeze on post handshake
2024-06-07BUG/MEDIUM: server: fix dynamic servers initial settings
2024-06-06BUG/MEDIUM: ssl: wrong priority whem limiting ECDSA ciphers in ECDSA+RSA configuration
2024-06-06BUG/MINOR: hlua: fix leak in hlua_ckch_set() error path
2024-06-06BUG/MINOR: hlua: prevent LJMP in hlua_traceback()
2024-06-06BUG/MINOR: hlua: fix unsafe hlua_pusherror() usage
2024-06-06BUG/MINOR: hlua: don't use lua_pushfstring() when we don't expect LJMP
2024-06-06BUG/MINOR: quic: prevent crash on qc_kill_conn()
2024-06-06BUG/MINOR: hlua: use CertCache.set() from various hlua contexts
2024-06-06BUG/MINOR: tools: fix possible null-deref in env_expand() on out-of-memory
2024-06-06BUG/MINOR: tcpcheck: report correct error in tcp-check rule parser
2024-06-06BUG/MINOR: cfgparse: remove the correct option on httpcheck send-state warning
2024-06-06BUG/MINOR: activity: fix Delta_calls and Delta_bytes count
2024-06-06BUG/MINOR: ssl/ocsp: init callback func ptr as NULL
2024-06-06BUG/MINOR: server: Don't reset resolver options on a new default-server line
2024-06-06BUG/MINOR: http-htx: Support default path during scheme based normalization
2024-06-06BUG/MINOR: quic: adjust restriction for stateless reset emission
2024-06-06BUG/MEDIUM: mux-quic: Create sedesc in same time of the QUIC stream
2024-06-06BUG/MEDIUM: quic_tls: prevent LibreSSL < 4.0 from negotiating CHACHA20_POLY1305
2024-06-06BUG/MAJOR: quic: Crash with TLS_AES_128_CCM_SHA256 (libressl only)
2024-06-06BUG/MINOR: connection: parse PROXY TLV for LOCAL mode
2024-06-06BUG/MINOR: stats: Don't state the 303 redirect response is chunked
2024-06-06BUG/MINOR: htpp-ana/stats: Specify that HTX redirect messages have a C-L header
2024-06-06BUG/MEDIUM: fd: prevent memory waste in fdtab array
2024-06-06BUG/MEDIUM: h1: Reject CONNECT request if the target has a scheme
2024-06-06BUG/MINOR: h1: Check authority for non-CONNECT methods only if a scheme is found
2024-06-06BUG/MEDIUM: stick-tables: properly mark stktable_data as packed
2024-06-06BUG/MEDIUM: htx: mark htx_sl as packed since it may be realigned
2024-06-06BUG/MINOR: qpack: fix error code reported on QPACK decoding failure
2024-06-06BUG/MINOR: mux-quic: fix error code on shutdown for non HTTP/3
2024-06-06BUG/MINOR: log: smp_rgs array issues with inherited global log directives
2024-06-06BUG/MINOR: log: keep the ref in dup_logger()
2024-06-06BUG/MINOR: haproxy: only tid 0 must not sleep if got signal
2024-06-06BUG/MINOR: mworker: reintroduce way to disable seamless reload with -x /dev/null
2024-06-06BUG/MINOR: h1: fix detection of upper bytes in the URI
2024-06-06BUG/MINOR: backend: use cum_sess counters instead of cum_conn
2024-06-06BUG/MINOR: fd: my_closefrom() on Linux could skip contiguous series of sockets
2024-06-06BUG/MINOR: sock: handle a weird condition with connect()
2024-06-06BUG/MINOR: stconn: Fix sc_mux_strm() return value
2024-06-06BUG/MEDIUM: cache: Vary not working properly on anything other than accept-encoding
2024-04-18BUG/MINOR: server: fix slowstart behavior
2024-04-18BUG/MEDIUM: peers: Fix exit condition when max-updates-at-once is reached
2024-04-18BUG/MEDIUM: spoe: Always retry when an applet fails to send a frame
2024-04-18BUG/MEDIUM: applet: Fix applet API to put input data in a buffer
2024-04-18BUG/MEDIUM: evports: do not clear returned events list on signal
2024-04-18BUG/MEDIUM: stconn: Don't forward channel data if input data must be filtered
2024-04-18BUG/MEDIUM: grpc: Fix several unaligned 32/64 bits accesses
2024-04-18BUG/MEDIUM: peers/trace: fix crash when listing event types
2024-04-18BUG/MINOR: debug: make sure DEBUG_STRICT=0 does work as documented
2024-04-18BUG/MINOR: http-ana: Fix TX_L7_RETRY and TX_D_L7_RETRY values
2024-04-18BUG/MEDIUM: http-ana: Deliver 502 on keep-alive for fressh server connection
2024-04-18BUG/MINOR: log: invalid snprintf() usage in sess_build_logline()
2024-04-18BUG/MINOR: tools/log: invalid encode_{chunk,string} usage
2024-04-18BUG/MINOR: log: fix lf_text_len() truncate inconsistency
2024-04-18BUG/MINOR: listener: always assign distinct IDs to shards
2024-04-18BUG/MINOR: cli: Report an error to user if command or payload is too big

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
2024-06-12BUG/MINOR: quic: fix padding of INITIAL packets
2024-06-12BUG/MAJOR: mux-h1: Prevent any UAF on H1 connection after draining a request
2024-06-12BUG/MINOR: promex: Skip resolvers metrics when there is no resolver section
2024-06-11BUG/MEDIUM: log: fix lf_expr_postcheck() behavior with default section
2024-06-11BUG/MEDIUM: proxy: fix UAF with {tcp,http}checks logformat expressions
2024-06-11BUG/MINOR: proxy: fix header_unique_id leak on deinit()
2024-06-11BUG/MINOR: proxy: fix source interface and usesrc leaks on deinit()
2024-06-11BUG/MINOR: proxy: fix dyncookie_key leak on deinit()
2024-06-11BUG/MINOR: proxy: fix check_{command,path} leak on deinit()
2024-06-11BUG/MINOR: proxy: fix email-alert leak on deinit()
2024-06-11BUG/MINOR: proxy: fix log_tag leak on deinit()
2024-06-11BUG/MINOR: proxy: fix server_id_hdr_name leak on deinit()
2024-06-10BUG/MINOR: mux-h1: Use the right variable to set NEGO_FF_FL_EXACT_SIZE flag
2024-06-10BUG/MAJOR: mux-h1: Properly copy chunked input data during zero-copy nego
2024-06-10BUG/MEDIUM: stconn/mux-h1: Fix suspect change causing timeouts
2024-06-10BUG/MINOR: quic: ensure Tx buf is always purged
2024-06-10BUG/MINOR: quic: fix computed length of emitted STREAM frames
2024-06-07BUG/MEDIUM: ssl: bad auth selection with TLS1.2 and WolfSSL

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