HAProxy known bugs for version v2.1.11 (maintenance branch 2.1) :  108 

This version (2.1.11) is a release belonging to maintenance branch 2.1 whose latest version is 2.1.12. 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.

Quick links

Other versions in the same branch

This branch contains the following releases :

DateVersionComment
2021-03-182.1.12 ⇐ last
2021-01-082.1.11 ⇐ yours
2020-11-052.1.10 
2020-09-302.1.9 
2020-07-312.1.8 
2020-06-092.1.7 
2020-06-082.1.6 
2020-05-292.1.5 
2020-04-022.1.4 
2020-02-122.1.3 
2019-12-212.1.2 
2019-12-112.1.1 
2019-11-252.1.0 

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

These fixes have already been queued for a more recent 2.1 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
108 0 3 43 62

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

Merge dateSubject - Severity (minor, medium, major, critical)
2021-04-29BUG/MINOR: mux-fcgi: Don't send normalized uri to FCGI application
2021-04-29BUG/MEDIUM: peers: reset tables stage flags stages on new conns
2021-04-29BUG/MEDIUM: peers: re-work updates lookup during the sync on the fly
2021-04-29BUG/MEDIUM: peers: reset commitupdate value in new conns
2021-04-29BUG/MEDIUM: peers: reset starting point if peers appears longly disconnected
2021-04-29BUG/MEDIUM: peers: stop considering ack messages teaching a full resync
2021-04-29BUG/MEDIUM: peers: register last acked value as origin receiving a resync req
2021-04-29BUG/MEDIUM: peers: initialize resync timer to get an initial full resync
2021-04-29BUG/MINOR: applet: Notify the other side if data were consumed by an applet
2021-04-29BUG/MINOR: htx: Preserve HTX flags when draining data from an HTX message
2021-04-29BUG/MEDIUM: peers: re-work refcnt on table to protect against flush
2021-04-29BUG/MEDIUM: peers: re-work connection to new process during reload.
2021-04-29BUG/MINOR: peers: remove useless table check if initial resync is finished
2021-04-29BUG/MEDIUM: mux-h2: Properly handle shutdowns when received with data
2021-04-29BUG/MINOR: mworker: don't use oldpids[] anymore for reload
2021-04-29BUG/MINOR: mworker/init: don't reset nb_oldpids in non-mworker cases
2021-04-29BUG/MEDIUM: config: fix cpu-map notation with both process and threads
2021-04-29BUG/MEDIUM: mux-h2: Fix dfl calculation when merging CONTINUATION frames
2021-04-29BUG/MAJOR: mux-h2: Properly detect too large frames when decoding headers
2021-04-29BUG/MINOR: server: free srv.lb_nodes in free_server
2021-04-29BUG/MINOR: mux-h1: Release idle server H1 connection if data are received
2021-04-29BUG/MINOR: logs: Report the true number of retries if there was no connection
2021-04-29BUG/MINOR: http_htx: Remove BUG_ON() from http_get_stline() function
2021-04-29BUG/MINOR: http-fetch: Make method smp safe if headers were already forwarded
2021-04-29BUG/MINOR: connection: Fix fc_http_major and bc_http_major for TCP connections
2021-04-29BUG/MEDIUM: threads: Ignore current thread to end its harmless period
2021-04-29BUG/MEDIUM: sample: Fix adjusting size in field converter
2021-04-29BUG/MINOR: tools: fix parsing "us" unit for timers
2021-04-29MINOR/BUG: mworker/cli: do not use the unix_bind prefix for the master CLI socket
2021-04-14BUG/MEDIUM: task: close a possible data race condition on a tasklet's list link
2021-04-09BUG/MEDIUM: resolvers: Don't release resolution from a requester callbacks
2021-04-09BUG/MINOR: resolvers: Unlink DNS resolution to set RMAINT on SRV resolution
2021-04-09BUG/MAJOR: dns: disabled servers through SRV records never recover
2021-04-09BUG/MAJOR: dns: fix null pointer dereference in snr_update_srv_status
2021-04-09BUG/MINOR: stats: Apply proper styles in HTML status page.
2021-04-09BUG/MEDIUM: lua: Always init the lua stack before referencing the context
2021-04-09BUG/MEDIUM: debug/lua: Use internal hlua function to dump the lua traceback
2021-03-31BUG/MINOR: http_fetch: make hdr_ip() resistant to empty fields
2021-03-31BUG/MINOR: tcp: fix silent-drop workaround for IPv6
2021-03-31BUG/MEDIUM: mux-h1: make h1_shutw_conn() idempotent
2021-03-31BUG/MINOR: http_fetch: make hdr_ip() reject trailing characters
2021-03-31BUG/MEDIUM: thread: Fix a deadlock if an isolated thread is marked as harmless
2021-03-31BUG/MEDIUM: freq_ctr/threads: use the global_now_ms variable
2021-03-31BUG/MEDIUM: time: make sure to always initialize the global tick
2021-03-18BUG/MINOR: freq_ctr/threads: make use of the last updated global time
2021-03-18BUG/MINOR: resolvers: Add missing case-insensitive comparisons of DNS hostnames
2021-03-18BUG/MINOR: resolvers: Reset server address on DNS error only on status change
2021-03-18BUG/MINOR: resolvers: Consider server to have no IP on DNS resolution error
2021-03-12BUG/MINOR: session: Add some forgotten tests on session's listener
2021-03-12BUG/MINOR: proxy/session: Be sure to have a listener to increment its counters
2021-03-12BUG/MEDIUM: filters: Set CF_FL_ANALYZE on channels when filters are attached
2021-03-12BUG/MEDIUM: session: NULL dereference possible when accessing the listener
2021-03-12BUG/MINOR: ssl: don't truncate the file descriptor to 16 bits in debug mode
2021-03-12BUG/MINOR: hlua: Don't strip last non-LWS char in hlua_pushstrippedstring()
2021-03-05BUG/MEDIUM: lists: Avoid an infinite loop in MT_LIST_TRY_ADDQ().
2021-03-05BUG/MEDIUM: lists: Lock the element while we check if it is in a list.
2021-03-03BUG/MEDIUM: dns: Consider the fact that dns answers are case-insensitive
2021-03-03BUG/MINOR: http-ana: Don't increment HTTP error counter on read error/timeout
2021-03-03BUG/MINOR: mux-h2: Fix typo in scheme adjustment
2021-03-01BUG/MEDIUM: spoe: Kill applets if there are pending connections and nbthread > 1
2021-03-01BUG/MINOR: connection: Use the client's dst family for adressless servers
2021-03-01BUG/MINOR: tcp-act: Don't forget to set the original port for IPv4 set-dst rule
2021-03-01BUG/MINOR: http-ana: Only consider dst address to process originalto option
2021-03-01BUG/MINOR: mux-h1: Immediately report H1C errors from h1_snd_buf()
2021-02-26BUG/MEDIUM: resolvers: Reset address for unresolved servers
2021-02-26BUG/MEDIUM: resolvers: Reset server address and port for obselete SRV records
2021-02-26BUG/MINOR: resolvers: new callback to properly handle SRV record errors
2021-02-26BUG/MINOR: proxy: wake up all threads when sending the hard-stop signal
2021-02-26BUG/MEDIUM: cli/shutdown sessions: make it thread-safe
2021-02-26BUG/MEDIUM: proxy: use thread-safe stream killing on hard-stop
2021-02-26BUG/MEDIUM: vars: make functions vars_get_by_{name,desc} thread-safe
2021-02-26BUG/MINOR: sample: secure convs that accept base64 string and var name as args
2021-02-26BUG/MINOR: ssl/cli: potential null pointer dereference in "set ssl cert"
2021-02-26BUG/MEDIUM: mux-h1: Fix handling of responses to CONNECT other than 200-ok
2021-02-26BUG/MINOR: server: Be sure to cut the last parsed field of a server-state line
2021-02-26BUG/MINOR: server: Init params before parsing a new server-state line
2021-02-26BUG/MINOR: sample: Always consider zero size string samples as unsafe
2021-02-26BUG/MINOR: checks: properly handle wrapping time in __health_adjust()
2021-02-26BUG/MINOR: session: atomically increment the tracked sessions counter
2021-02-26BUG/MINOR: server: Remove RMAINT from admin state when loading server state
2021-02-26BUG/MINOR: server: Don't call fopen() with server-state filepath set to NULL
2021-02-26BUG/MINOR: cfgparse: do not mention "addr:port" as supported on proxy lines
2021-02-26BUG/MINOR: stats: revert the change on ST_CONVDONE
2021-02-26BUG/MEDIUM: config: don't pick unset values from last defaults section
2021-02-26BUG/MINOR: server: Fix server-state-file-name directive
2021-02-26BUG/MINOR: backend: hold correctly lock when killing idle conn
2021-02-26BUG/MINOR: tools: Fix a memory leak on error path in parse_dotted_uints()
2021-02-26BUG/MINOR: server: re-align state file fields number
2021-02-26BUG/MEDIUM: mux-h1: Always set CS_FL_EOI for response in MSG_DONE state
2021-02-26BUG/MINOR: http-ana: Don't increment HTTP error counter on internal errors
2021-02-05BUG/MEDIUM: mux-h2: do not quit the demux loop before setting END_REACHED
2021-02-05BUG/MEDIUM: mux-h2: handle remaining read0 cases
2021-02-05BUG/MEDIUM: ssl/cli: abort ssl cert is freeing the old store
2021-02-05BUG/MINOR: ssl: init tmp chunk correctly in ssl_sock_load_sctl_from_file()
2021-02-05BUG/MINOR: xxhash: make sure armv6 uses memcpy()
2021-02-05BUG/MEDIUM: ssl: check a connection's status before computing a handshake
2021-02-05BUG/MINOR: stick-table: Always call smp_fetch_src() with a valid arg list
2021-02-05BUG/MINOR: config: fix leak on proxy.conn_src.bind_hdr_name
2021-02-01BUG/MEDIUM: filters/htx: Fix data forwarding when payload length is unknown
2021-01-28BUG/MEDIUM: stats: add missing INF_BUILD_INFO definition
2021-01-26BUG/MEDIUM: mux-h2: fix read0 handling on partial frames
2021-01-26BUG/MINOR: mworker: define _GNU_SOURCE for strsignal()
2021-01-26BUG/MINOR: mux_h2: missing space between "st" and ".flg" in the "show fd" helper
2021-01-26BUG/MINOR: peers: Wrong "new_conn" value for "show peers" CLI command.
2021-01-26BUG/MINOR: threads: Fixes the number of possible cpus report for Mac.
2021-01-26BUG/MINOR: init: Use a dynamic buffer to set HAPROXY_CFGFILES env variable
2021-01-26BUG/MINOR: init: enforce strict-limits when using master-worker
2021-01-26BUG/MINOR: sample: Memory leak of sample_expr structure in case of error
2021-01-26BUG/MINOR: sample: check alloc_trash_chunk return value in concat()

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