Call for testing: OpenSSH 10.1p1

Theo de Raadt deraadt at openbsd.org
Thu Oct 2 03:22:26 AEST 2025


That was a mistake in openssh 10.0 portable, which CANNOT BE FIXED.
Reversing the number creates worse problems.

It will not be fixed.

The current call is for testing 10.1, not 10.0


> I am testing the right one, just happened SSH_PORTABLE  in version.h
> wasn't update from p2 to p1:
> 
> 11:11:50 leo at sdf-1 ~/temp $ curl -O
> https://cdn.openbsd.org/pub/OpenBSD/OpenSSH/portable/openssh-10.0p1.tar.gz
> 
> 11:11:57 leo at sdf-1 ~/temp $ tar tzvf openssh-10.0p1.tar.gz | grep version.h
> -rw-r--r--  0 djm    djm       172 Apr  9 01:02 openssh-10.0p1/version.h
> 
> 11:12:14 leo at sdf-1 ~/temp $ tar xzvf openssh-10.0p1.tar.gz
> openssh-10.0p1/version.h
> x openssh-10.0p1/version.h
> 
> 11:13:42 leo at bsdf-1 ~/temp $ cat openssh-10.0p1/version.h
> /* $OpenBSD: version.h,v 1.105 2025/04/09 07:00:21 djm Exp $ */
> 
> #define SSH_VERSION    "OpenSSH_10.0"
> 
> #define SSH_PORTABLE    "p2". <--------
> #define SSH_RELEASE    SSH_VERSION SSH_PORTABLE
> 
> 
> Regards,
> 
> --
> 
> Leo
> 
> On 10/1/25 10:48, Chris Rapier wrote:
> > I think you are testing the 10.0p2 release as opposed to 10.1p1.
> >
> > That said, I did run into that problem earlier and I can't remember
> > how I resolved it.
> >
> > Chris
> >
> > On 10/1/25 12:26, Leonardo Saavedra via openssh-unix-dev wrote:
> >> Just a little detail in version
> >>
> >> [leo at boxer tmp]$ tar -xzvf ../openssh-10.0p1.tar.gz openssh-10.0p1/
> >> version.h | xargs cat
> >> /* $OpenBSD: version.h,v 1.105 2025/04/09 07:00:21 djm Exp $ */
> >>
> >> #define SSH_VERSION    "OpenSSH_10.0"
> >>
> >> #define SSH_PORTABLE    "p2"
> >> #define SSH_RELEASE    SSH_VERSION SSH_PORTABLE
> >>
> >> [leo at boxer openssh-10.0p1]$ diff -u version.h.orig  version.h
> >> --- version.h.orig    2025-10-01 09:20:07.508606652 -0700
> >> +++ version.h    2025-10-01 09:20:15.404580439 -0700
> >> @@ -2,5 +2,5 @@
> >>
> >>   #define SSH_VERSION    "OpenSSH_10.0"
> >>
> >> -#define SSH_PORTABLE    "p2"
> >> +#define SSH_PORTABLE    "p1"
> >>   #define SSH_RELEASE    SSH_VERSION SSH_PORTABLE
> >>
> >>
> >> On 10/1/25 10:09, Leonardo Saavedra via openssh-unix-dev wrote:
> >>> Hi,
> >>>
> >>> The build process went pretty smooth in a RHEL 8.10, except the
> >>> `make tests` as follow:
> >>>
> >>>
> >>> [leo at boxer build]$ uname -a
> >>> Linux boxer 4.18.0-553.75.1.el8_10.x86_64 #1 SMP Wed Sep 10
> >>> 00:05:32 EDT 2025 x86_64 x86_64 x86_64 GNU/Linux
> >>>
> >>> [leo at boxer build]$ cat /etc/redhat-release
> >>> Red Hat Enterprise Linux release 8.10 (Ootpa)
> >>>
> >>> [leo at boxer build]$ openssl version
> >>> OpenSSL 3.5.4 30 Sep 2025 (Library: OpenSSL 3.5.4 30 Sep 2025)
> >>>
> >>> [leo at boxer build]$ ssh -V
> >>> OpenSSH_10.0p2, OpenSSL 3.5.4 30 Sep 2025
> >>>
> >>>
> >>> [...]
> >>>
> >>> unexpected ssh output
> >>> multihop restricted
> >>> multihop username
> >>> multihop wildcard username
> >>> multihop wrong username
> >>> multihop cycle no agent
> >>> multihop cycle agent unrestricted
> >>> 12d11
> >>> < ssh-ed25519
> >>> AAAAC3NzaC1lZDI1NTE5AAAAIHdIhChwRPGof+kImHrQHDaaqgvwVGIMCMik1lc2Ux1d
> >>> 13a13
> >>> > ssh-ed25519
> >>> AAAAC3NzaC1lZDI1NTE5AAAAIHdIhChwRPGof+kImHrQHDaaqgvwVGIMCMik1lc2Ux1d
> >>> 22d21
> >>> < ssh-ed25519
> >>> AAAAC3NzaC1lZDI1NTE5AAAAIHdIhChwRPGof+kImHrQHDaaqgvwVGIMCMik1lc2Ux1d
> >>> 23a23
> >>> > ssh-ed25519
> >>> AAAAC3NzaC1lZDI1NTE5AAAAIHdIhChwRPGof+kImHrQHDaaqgvwVGIMCMik1lc2Ux1d
> >>> 32d31
> >>> < ssh-ed25519
> >>> AAAAC3NzaC1lZDI1NTE5AAAAIHdIhChwRPGof+kImHrQHDaaqgvwVGIMCMik1lc2Ux1d
> >>> 33a33
> >>> > ssh-ed25519
> >>> AAAAC3NzaC1lZDI1NTE5AAAAIHdIhChwRPGof+kImHrQHDaaqgvwVGIMCMik1lc2Ux1d
> >>> 42d41
> >>> < ssh-ed25519
> >>> AAAAC3NzaC1lZDI1NTE5AAAAIHdIhChwRPGof+kImHrQHDaaqgvwVGIMCMik1lc2Ux1d
> >>> 43a43
> >>> > ssh-ed25519
> >>> AAAAC3NzaC1lZDI1NTE5AAAAIHdIhChwRPGof+kImHrQHDaaqgvwVGIMCMik1lc2Ux1d
> >>> 52d51
> >>> < ssh-ed25519
> >>> AAAAC3NzaC1lZDI1NTE5AAAAIHdIhChwRPGof+kImHrQHDaaqgvwVGIMCMik1lc2Ux1d
> >>> 53a53
> >>> > ssh-ed25519
> >>> AAAAC3NzaC1lZDI1NTE5AAAAIHdIhChwRPGof+kImHrQHDaaqgvwVGIMCMik1lc2Ux1d
> >>> 62d61
> >>> < ssh-ed25519
> >>> AAAAC3NzaC1lZDI1NTE5AAAAIHdIhChwRPGof+kImHrQHDaaqgvwVGIMCMik1lc2Ux1d
> >>> 63a63
> >>> > ssh-ed25519
> >>> AAAAC3NzaC1lZDI1NTE5AAAAIHdIhChwRPGof+kImHrQHDaaqgvwVGIMCMik1lc2Ux1d
> >>> 72d71
> >>> < ssh-ed25519
> >>> AAAAC3NzaC1lZDI1NTE5AAAAIHdIhChwRPGof+kImHrQHDaaqgvwVGIMCMik1lc2Ux1d
> >>> 73a73
> >>> > ssh-ed25519
> >>> AAAAC3NzaC1lZDI1NTE5AAAAIHdIhChwRPGof+kImHrQHDaaqgvwVGIMCMik1lc2Ux1d
> >>> unexpected ssh output
> >>> multihop cycle restricted deny
> >>> multihop cycle restricted allow
> >>> failed agent restrictions
> >>> make[1]: *** [Makefile:255: t-exec] Error 1
> >>> make[1]: Leaving directory
> >>> '/export/home/leo/src/openssh-10.0p1/regress'
> >>> make: *** [Makefile:788: t-exec] Error 2
> >>>
> >>>
> >>>
> >>> Regards,
> >>>
> >>> -- Leo
> >>>
> >>>
> >>> On 9/30/25 07:45, Damien Miller wrote:
> >>>> Hi,
> >>>>
> >>>> OpenSSH 10.1p1 is almost ready for release, so we would
> >>>> appreciate testing
> >>>> on as many platforms and systems as possible.
> >>>>
> >>>> Snapshot releases for portable OpenSSH are available from
> >>>> http://www.mindrot.org/openssh_snap/
> >>>>
> >>>> The OpenBSD version is available in CVS HEAD:
> >>>> http://www.openbsd.org/anoncvs.html
> >>>>
> >>>> Portable OpenSSH is also available via git using the
> >>>> instructions at http://www.openssh.com/portable.html#cvs
> >>>> At https://anongit.mindrot.org/openssh.git/ or via a mirror at Github:
> >>>> https://github.com/openssh/openssh-portable
> >>>>
> >>>> Running the regression tests supplied with Portable OpenSSH does not
> >>>> require installation and is a simply:
> >>>>
> >>>> $ ./configure && make tests
> >>>>
> >>>> Live testing on suitable non-production systems is also appreciated.
> >>>> Please send reports of success or failure to
> >>>> openssh-unix-dev at mindrot.org. Security bugs should be reported
> >>>> directly to openssh at openssh.com.
> >>>>
> >>>> Below is a summary of changes. More detail may be found in the
> >>>> ChangeLog
> >>>> in the portable OpenSSH tarballs.
> >>>>
> >>>> Thanks to the many people who contributed to this release.
> >>>>
> >>>> Potentially-incompatible changes
> >>>> --------------------------------
> >>>>
> >>>>   * ssh(1): add a warning when the connection negotiates a non-post
> >>>>     quantum key agreement algorithm.
> >>>>
> >>>>     This warning has been added due to the risk of "store now, decrypt
> >>>>     later" attacks. More details at https://openssh.com/pq.html
> >>>>
> >>>>     This warning may be controlled via a new WarnWeakCrypto ssh_config
> >>>>     option, defaulting to on. This option is likely to control
> >>>>     additional weak crypto warnings in the future.
> >>>>
> >>>>   * ssh(1), sshd(8): major changes to handling of DSCP marking/IPQoS
> >>>>
> >>>>     Both the client and the server have changed the default DCSP
> >>>>     (a.k.a IPQos) values and the way these values are selected at
> >>>>     runtime.
> >>>>
> >>>>     Both endpoints now use Expedited Forward (EF) for interactive
> >>>>     traffic by default. This provides better prioritisation,
> >>>>     especially on wireless media (cf. RFC 8325). Non-interactive
> >>>>     traffic now uses the operating system default DSCP marking.
> >>>>     Both the interactive and non-interactive DSCP values may be
> >>>>     overridden via the IPQoS keyword in ssh_config(5) and
> >>>>     sshd_config(5).
> >>>>
> >>>>     The DSCP value selected may now change over the course of a
> >>>>     connection. ssh(1) and sshd(8) will automatically select between
> >>>>     the interactive and non-interactive IPQoS values depending on
> >>>>     the type of SSH channels open. E.g. if a sftp session is using
> >>>>     the connectionn, then the non-interactive value will be used.
> >>>>
> >>>>     This is important now that the default interactive IPQoS is EF
> >>>>     (Expedited Forwarding), as many networks are configured to allow
> >>>>     only relatively small amounts of traffic of this class and
> >>>> they will
> >>>>     aggressively deprioritise the entire connection if this is
> >>>> exceeded.
> >>>>
> >>>>   * ssh-add(1): when adding certificates to an agent, set the expiry
> >>>>     to the certificate expiry time plus a short (5 min) grace period.
> >>>>
> >>>>     This will cause the agent to automtically remove certificates
> >>>> shortly
> >>>>     after they expire. A new ssh-add -N option disables this
> >>>> behaviour.
> >>>>
> >>>>   * All: remove experimental support for XMSS keys. This was never
> >>>>     enabled by default. We expect to implement a new post-quantu
> >>>>     signature scheme in the near future.
> >>>>
> >>>>   * ssh(1), sshd(8): deprecate support for IPv4 type-of-service (TOS)
> >>>>     keywords in the IPQoS configuration directive.
> >>>>
> >>>>     Type of Service (ToS) was deprecated in the late nineties and
> >>>>     replaced with the Differentiated Services architecture. Diffserv
> >>>>     has significant advantages for operators because this mechanism
> >>>>     offers more granularity.
> >>>>
> >>>>     OpenSSH switched its default IPQoS from ToS to DSCP values in
> >>>> 2018.
> >>>>
> >>>>     IPQoS configurations with 'lowdelay', 'reliability', or
> >>>>     'throughput' will be ignored and instead the system default QoS
> >>>>     settings apply. Additionally, a debug message is logged about the
> >>>>     deprecation with a suggestion to use DSCP.
> >>>>
> >>>>   * ssh-agent(1), sshd(8): move agent listener sockets from /tmp to
> >>>>     under ~/.ssh/agent for both ssh-agent(1) and forwarded sockets
> >>>>     in sshd(8).
> >>>>
> >>>>     This ensures processes that have restricted filesystem access
> >>>>     that includes /tmp do not ambiently have the ability to use keys
> >>>>     in an agent.
> >>>>
> >>>>     Moving the default directory has the consequence that the OS will
> >>>>     no longer clean up stale agent sockets, so ssh-agent now gains
> >>>>     this ability.
> >>>>
> >>>>     To support $HOME on NFS, the socket path includes a truncated
> >>>> hash of
> >>>>     the hostname. ssh-agent will by default only clean up sockets from
> >>>>     the same hostname.
> >>>>
> >>>>     ssh-agent(1) gains some new flags: -U suppresses the automatic
> >>>>     cleanup of stale sockets when it starts. -u forces a cleanup
> >>>>     without keeping a running agent, -uu forces a cleanup that ignores
> >>>>     the hostname. -T makes ssh-agent put the socket back in /tmp.
> >>>>
> >>>> Changes since OpenSSH 10.0
> >>>> ==========================
> >>>>
> >>>> New features
> >>>> ------------
> >>>>
> >>>>   * ssh(1), sshd(8): add SIGINFO handlers to log active channel and
> >>>>     session information.
> >>>>
> >>>>   * sshd(8): when refusing a certificate for user authentication, log
> >>>>     enough information to identify the certificate in addition to the
> >>>>     reason why it was being denied. Makes debugging certificate
> >>>>     authorisation problems a bit easier.
> >>>>
> >>>>   * ssh(1), ssh-agent(1): support ed25519 keys hosted on PKCS#11
> >>>>     tokens.
> >>>>
> >>>>   * ssh(1): add a ssh_config(5) RefuseConnection option that, when
> >>>>      encountered while processing an active section in a
> >>>>      configuration terminates ssh(1) with an error message that
> >>>>      contains the argument to the option.
> >>>>
> >>>>      This may be useful for expressing reminders or warnings in config
> >>>>      files, for example:
> >>>>
> >>>>      Match host foo
> >>>>             RefuseConnection "foo is deprecated, use splork instead"
> >>>>
> >>>>   * sshd(8): make the X11 display number check relative to
> >>>>     X11DisplayOffset. This will allows people to use X11DisplayOffset
> >>>>     to configure much higher port ranges if they really want, while
> >>>>     not changing the default behaviour.
> >>>>
> >>>>   * unit tests: the unit test framework now includes some basic
> >>>>     benchmarking capabilities. Run with "make UNITTEST_BENCHMARK=yes"
> >>>>     on OpenBSD or "make unit-bench" on Portable OpenSSH.
> >>>>
> >>>> Bugfixes
> >>>> --------
> >>>>
> >>>>   * sshd(8): fix mistracking of MaxStartups process exits in some
> >>>>     situations. At worst, this could cause all MaxStartups slots to
> >>>>     fill and sshd to refuse new connections.
> >>>>
> >>>>   * ssh(1): fix delay on X client startup when ObscureKeystrokeTiming
> >>>>     is enabled. bz#3820
> >>>>
> >>>>   * sshd(8): increase the maximum size of the supported configuration
> >>>>     from 256KB to 4MB, which ought to be enough for anybody. Fail
> >>>>     early and visibly when this limit is breached. bz3808
> >>>>
> >>>>   * sftp(1): during sftp uploads, avoid a condition where a failed
> >>>>     write could be ignored if a subsequent write succeeded. This is
> >>>>     unlikely but technically possible because sftp servers are
> >>>>     allowed to reorder requests.
> >>>>
> >>>>   * sftp(1): avoid a fatal() when sftp tab-completes filenames that
> >>>>     share common utf-8 characters that don't encode to a complete
> >>>>     codepoint.
> >>>>
> >>>>   * sshd(8): avoid a race condition when the sshd-auth process exits
> >>>>     tha could cause a spurious error message to be logged.
> >>>>
> >>>>   * sshd(8): log at level INFO when PerSourcePenalties actually
> >>>>     blocks access to a source address range. Previously this was
> >>>>     logged at level VERBOSE, which hid enforcement actions under
> >>>>     default config settings.
> >>>>
> >>>>   * sshd(8): GssStrictAcceptor was missing from sshd -T output; fix
> >>>>
> >>>>   * sshd(8): Make the MaxStartups and PerSourceNetBlockSize options
> >>>>     first-match-wins as advertised. bz3859
> >>>>
> >>>>   * ssh(1): fix an incorrect return value check in the local forward
> >>>>     cancellation path that would cause failed cancellations not to be
> >>>>     logged.
> >>>>
> >>>>   * sshd(8): make "Match !final" not trigger a 2nd pass ssh_config
> >>>>     parsing pass (unless hostname canonicalisation or a separate
> >>>>     "Match final" does). bz3843
> >>>>
> >>>>   * ssh(1): better debug diagnostics when loading keys. Will now list
> >>>>     key fingerprint and algorithm (not just algorithm number) as well
> >>>>     as making it explicit which keys didn't load.
> >>>>
> >>>>   * All: fix a number of memory leaks found by LeakSanitizer,
> >>>>     Coverity and manual inspection.
> >>>>
> >>>>   * sshd(8): : Output the current name for PermitRootLogin's
> >>>>     "prohibit-password" in sshd -T instead of its deprecated alias
> >>>>     "without-password".  bz#3788
> >>>>
> >>>>   * ssh(1): make writing known_hosts lines more atomic by writing
> >>>>     the entire line in one operation and using unbuffered stdio.
> >>>>
> >>>>     Usually writes to this file are serialised on the "Are you
> >>>> sure you
> >>>>     want to continue connecting?" prompt, but if host key checking is
> >>>>     disabled and connections were being made with high concurrency
> >>>>     then interleaved writes might have been possible.
> >>>>
> >>>> Portability
> >>>> -----------
> >>>>
> >>>>   * sshd(8): check the username didn't change during the PAM
> >>>>     transactions.
> >>>>
> >>>>     PAM modules can change the user during their execution, but
> >>>>     this is not supported by sshd(8). If such a case was incorrectly
> >>>>     configured by the system administrator, then sshd(8) could end up
> >>>>     using a different username to the one authorised by PAM.
> >>>>
> >>>>   * sshd(8): don't log audit messages with UNKNOWN hostname to avoid
> >>>>     slow DNS lookups in the audit subsystem.
> >>>>
> >>>>   * All: when making a copy of struct passwd, ensure struct fields are
> >>>>     non-NULL. Android libc can return NULL pw_gecos, for example.
> >>>>
> >>>>   * All: Remove status bits from OpenSSL >=3 version check.
> >>>>
> >>>>   * sshd(8), ssh(1): Use SSH_TUN_COMPAT_AF on FreeBSD. Otherwise tun
> >>>>     forwarding from other OSes fails as soon as the first IPv6 message
> >>>>     is sent by the other side (which is usually a Router Solicitation
> >>>>     ICMPv6 message which is sent as soon as the interface is up).
> >>>>
> >>>>   * ssh(1), ssh-agent(8): check for nlist function presence before
> >>>>     attenmpting to use it instead of relying on the presence of the
> >>>>     nlist.h header.  Mac OS X, in particular has the header, but only
> >>>>     has the function in the 32bit libraries.
> >>>>
> >>>>   * All: fill in missing system header files.
> >>>>
> >>>>     Create replacement header files inside openbsd-compat for common
> >>>>     headers that are missing on a given platform. Usually these are
> >>>>     just empty, but in some cases they'll include the equivalent file.
> >>>>     This avoids having to wrap those includes in '#ifdef HAVE_FOO_H'
> >>>>     and reduces the diff between Portable OpenSSH and OpenBSD.
> >>>>
> >>>>   * sshd(8): handle futex_time64 properly in seccomp sandbox
> >>>>     Previously we only allowed __NR_futex, but some 32-bit systems
> >>>>     apparently support __NR_futex_time64. We had support for this
> >>>>     in the sandbox, but because of a macro error only __NR_futex was
> >>>>     allowlisted.
> >>>>
> >>>>   * Add contrib/gnome-ssh-askpass4 for GNOME 40+ using the GCR API.
> >>>>
> >>>>   * sshd(8): let ga_init() fail gracefully if getgrouplist does.
> >>>>     Apparently getgrouplist() can fail on OSX when passed a
> >>>>     non-existent group name. Other platforms seem to return a group
> >>>>     list consisting of the numeric gid passed to the function. bz3848
> >>>>
> >>>>   * ssh-agent(1): exit 0 from SIGTERM under systemd socket-activation,
> >>>>     preventing a graceful shutdown of an agent via systemd from
> >>>>     incorrectly marking the service as "failed".
> >>>>
> >>>>   * build: wrap some autoconf macros in AC_CACHE_CHECK.
> >>>>
> >>>>     This allows skipping/overriding the OSSH_CHECK_CFLAG_COMPILE and
> >>>>     OSSH_CHECK_CFLAG_LINK macros used to discover supported compiler
> >>>>     or linker flags. E.g.
> >>>>
> >>>>       $ ./configure ossh_cv_cflag__fzero_call_used_regs_used=no
> >>>>       [...]
> >>>>       checking if cc supports compile flag
> >>>> -fzero-call-used-regs=used and linking succeeds... (cached) no
> >>>>
> >>>> Reporting Bugs:
> >>>> ===============
> >>>>
> >>>> - Please read https://www.openssh.com/report.html
> >>>>    Security bugs should be reported directly to openssh at openssh.com
> >>>>
> >>>> OpenSSH is brought to you by Markus Friedl, Niels Provos, Theo de
> >>>> Raadt, Kevin Steves, Damien Miller, Darren Tucker, Jason McIntyre,
> >>>> Tim Rice and Ben Lindstrom.
> >>>>
> >>>> _______________________________________________
> >>>> openssh-unix-dev mailing list
> >>>> openssh-unix-dev at mindrot.org
> >>>> https://lists.mindrot.org/mailman/listinfo/openssh-unix-dev
> >>> _______________________________________________
> >>> openssh-unix-dev mailing list
> >>> openssh-unix-dev at mindrot.org
> >>> https://lists.mindrot.org/mailman/listinfo/openssh-unix-dev
> >> _______________________________________________
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> >
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