Hi,
HAProxy 2.9.15 was released on 2025/03/21. It added 19 new commits
after version 2.9.14.
This is a small update with various non-sensitive fixes to stabilize the
last version of 2.9. At this point it should not be deployed and systems
must be updated to 3.0 or newer. This version is essentially for those
who got caught at the last minute and forgot the deadline. Only a subset
of the pending fixes were backported here:
- reloads that transfer listening sockets to the new worker process could
make the older worker consume a lot of CPU for no apparent reason for
the time it remained present. The cause was that these FDs were
registered in epoll and when a new connection arrived to the new
process, the old one would also be notified without being able to
unregister it since already closed (well-known epoll pitfall). Now
these FDs are properly unregistered after being transfered so it's
possible that some users with long-running old processes will observe
a lower CPU usage on these old processes.
- in API issue in the applets could have resulted in some shutdown or
error conditions to be missed in the future, so as a prevention it
was fixed. Turns out, after fixing this, it uncovered a bug in the
CLI's "_getsocks" handler that was causing an infinite loop during
reloads, and another one in the SPOE applet where the appled would
never shut down (neither appeared in a released version), and these
bug were also fixed.
- SPOE applets could be woken in loops during stopping, thus eating a lot
of CPU until the process stopped. Note that this only concerns versions
3.0 and earlier.
- a BUG_ON() could be triggered when using filters with no http_payload
callback.
- a bug in htx_xfer_blks() could result in occasionally transfering more
blocks than requested on 32-bit platforms.
- some TLSv1.3 signature algorithms were not recognized by the
ClientHello parser which was written before TLSv1.3. The ones that
were not correctly supported were based on RSA-PSS and would have
resulted in presenting a possibly wrong certificate when both RSA and
ECDSA ones were present for the same SNI.
- a startup race can randomly affect the setting of CPU affinity of
certain threads during boot, if the thread starts faster than the
parent updates the pthread identifier upon return. When it happens,
the affinity setting will often be silently ignored, but on some libs
such as musl, it can also result in a segfault at boot.
- a few isses on the peers section parser and config consistency checker
possibly causing issues or even a segfault.
- h2: leading and trailing spaces are now properly trimmed in header
values.
- the h3 mux will no longer forget to send the FIN when the server
responds before the end of the request. Without this, a client could
remain stuck waiting for it.
- servers attached to a ring wouldn't wait before trying to reconnect,
causing connection storms in case of a server failure.
Please do not open issues about this version since it won't be fixed ;-)
Please find the usual URLs below :
Site index : https://www.haproxy.org/
Documentation : https://docs.haproxy.org/
Wiki : https://github.com/haproxy/wiki/wiki
Discourse : https://discourse.haproxy.org/
Slack channel : https://slack.haproxy.org/
Issue tracker : https://github.com/haproxy/haproxy/issues
Sources : https://www.haproxy.org/download/2.9/src/
Git repository : https://git.haproxy.org/git/haproxy-2.9.git/
Git Web browsing : https://git.haproxy.org/?p=haproxy-2.9.git
Changelog : https://www.haproxy.org/download/2.9/src/CHANGELOG
Dataplane API :
https://github.com/haproxytech/dataplaneapi/releases/latest
Pending bugs : https://www.haproxy.org/l/pending-bugs
Reviewed bugs : https://www.haproxy.org/l/reviewed-bugs
Code reports : https://www.haproxy.org/l/code-reports
Latest builds : https://www.haproxy.org/l/dev-packages
Willy
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Complete changelog :
Amaury Denoyelle (2):
BUG/MINOR: h3: do not report transfer as aborted on preemptive response
CLEANUP: h3: fix documentation of h3_rcv_buf()
Aurelien DARRAGON (1):
BUG/MINOR: sink: add tempo between 2 connection attempts for sft servers
Christopher Faulet (8):
BUG/MINOR: spoe: Check the shared waiting queue to shut applets during
stopping
BUG/MINOR: spoe: Allow applet creation when closing the last one during
stopping
BUG/MEDIUM: spoe: Don't wakeup idle applets in loop during stopping
REGTESTS: Fix truncated.vtc to send 0-CRLF
BUG/MEDIUM: filters: Handle filters registered on data with no payload
callback
BUG/MINOR: mux-h2: Properly handle full or truncated HTX messages on shut
BUG/MINOR: cli: Fix memory leak on error for _getsocks command
BUG/MINOR: cli: Fix a possible infinite loop in _getsocks()
Valentine Krasnobaeva (2):
BUG/MINOR: cfgparse: fix NULL ptr dereference in cfg_parse_peers
BUG/MEIDUM: startup: return to initial cwd only after
check_config_validity()
William Lallemand (2):
BUG/MEDIUM: ssl: chosing correct certificate using RSA-PSS with TLSv1.3
BUG/MEDIUM: htx: wrong count computation in htx_xfer_blks()
Willy Tarreau (4):
BUG/MEDIUM: fd: mark FD transferred to another process as FD_CLONED
BUG/MEDIUM: thread: use pthread_self() not ha_pthread[tid] in set_affinity
BUG/MINOR: h2: always trim leading and trailing LWS in header values
MINOR: version: Set the EOL of the 2.9 branch
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