From nobody Fri Aug 15 11:57:45 2025 X-Original-To: current@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4c3LGB3zT8z64yLq for ; Fri, 15 Aug 2025 11:57:54 +0000 (UTC) (envelope-from david@catwhisker.org) Received: from mx.catwhisker.org (mx.catwhisker.org [107.204.234.170]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4c3LG83QvGz3b13 for ; Fri, 15 Aug 2025 11:57:52 +0000 (UTC) (envelope-from david@catwhisker.org) Authentication-Results: mx1.freebsd.org; dkim=none; spf=pass (mx1.freebsd.org: domain of david@catwhisker.org designates 107.204.234.170 as permitted sender) smtp.mailfrom=david@catwhisker.org; dmarc=none Received: from albert.catwhisker.org (localhost [127.0.0.1]) by albert.catwhisker.org (8.18.1/8.18.1) with ESMTP id 57FBvjn2095938 for ; Fri, 15 Aug 2025 11:57:45 GMT (envelope-from david@albert.catwhisker.org) Received: (from david@localhost) by albert.catwhisker.org (8.18.1/8.18.1/Submit) id 57FBvjc9095937 for current@freebsd.org; Fri, 15 Aug 2025 04:57:45 -0700 (PDT) (envelope-from david) Date: Fri, 15 Aug 2025 04:57:45 -0700 From: David Wolfskill To: current@freebsd.org Subject: sshd Assertion failed after main-n279609-e9bcf7cb96de -> main-n279623-5205b32de3fb Message-ID: Mail-Followup-To: David Wolfskill , current@freebsd.org List-Id: Discussions about the use of FreeBSD-current List-Archive: https://lists.freebsd.org/archives/freebsd-current List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-current@FreeBSD.org MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="Sjl3hp1gsVaqg11H" Content-Disposition: inline X-Spamd-Result: default: False [-5.39 / 15.00]; SIGNED_PGP(-2.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.99)[-0.992]; MIME_GOOD(-0.20)[multipart/signed,text/plain]; R_SPF_ALLOW(-0.20)[+ip4:107.204.234.170]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; FREEFALL_USER(0.00)[david]; ASN(0.00)[asn:7018, ipnet:107.192.0.0/12, country:US]; MISSING_XM_UA(0.00)[]; MIME_TRACE(0.00)[0:+,1:+,2:~]; DMARC_NA(0.00)[catwhisker.org]; MLMMJ_DEST(0.00)[current@freebsd.org]; MID_RHS_MATCH_FROMTLD(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; TO_DN_NONE(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[current@freebsd.org]; TO_MATCH_ENVRCPT_ALL(0.00)[]; RCVD_TLS_LAST(0.00)[]; ARC_NA(0.00)[] X-Rspamd-Queue-Id: 4c3LG83QvGz3b13 X-Spamd-Bar: ----- --Sjl3hp1gsVaqg11H Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Yesterday, I had updated the developemnt machines to: FreeBSD 15.0-PRERELEASE #302 main-n279609-e9bcf7cb96de: Thu Aug 14 10:55:32= UTC 2025 root@freebeast.catwhisker.org:/common/S4/obj/usr/src/amd64.am= d64/sys/GENERIC amd64 1500060 1500060 Today's update was to: FreeBSD freebeast.catwhisker.org 15.0-PRERELEASE FreeBSD 15.0-PRERELEASE #3= 03 main-n279623-5205b32de3fb: Fri Aug 15 11:10:29 UTC 2025 root@freebea= st.catwhisker.org:/common/S4/obj/usr/src/amd64.amd64/sys/GENERIC amd64 1500= 060 1500060 The cited machine runs headless, so inability to ssh in is proving awkward. (I was able to login on the serial console, and ssh out =66rom there, FWIW.) I also note that "sudo" claims my login isn't in sudoers; while that is (technically) true, it has been thus for years: I'm using group membership (in "wheel" -- as I have for decades), though "groups" seems to detect the group membership OK. I had worked around recent issues with library bumps, and I run ssh =66rom base (vs. ports/packages). If I "service sshd stop", then fire up sshd in debug mode from the seroial console, then try to ssh in, I see a fair bit of stuff that I suspect is not especially relevant or interesting (because t loks fairly normal), ending with: =2E.. debug1: attempt 1 failures 0 [preauth] debug1: userauth_pubkey: publickey test pkalg rsa-sha2-512 pkblob RSA SHA25= 6:Oo/+Lm/ZaJCct0htUaKgWUM1x/EB11h/FDUnzhJLI4w [preauth] Assertion failed: (saved_egroupslen > 0), function temporarily_use_uid, fil= e /usr/src/crypto/openssh/uidswap.c, line 134. Abort Maybe that's a sufficient clue for someone cleverer than I. Peace, david --=20 David H. Wolfskill david@catwhisker.org Of course firing the statistician will force the statistics to conform! See https://www.catwhisker.org/~david/publickey.gpg for my public key. --Sjl3hp1gsVaqg11H Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iNUEARYKAH0WIQSTLzOSbomIK53fjFliipiWhXYx5QUCaJ8guV8UgAAAAAAuAChp c3N1ZXItZnByQG5vdGF0aW9ucy5vcGVucGdwLmZpZnRoaG9yc2VtYW4ubmV0OTMy RjMzOTI2RTg5ODgyQjlEREY4QzU5NjI4QTk4OTY4NTc2MzFFNQAKCRBiipiWhXYx 5bXEAQCfDQxWaRQkm+0bfmH8b194KkwfNa5kkNEGlfqsgQTp2gD/ernOYpcofb41 r3k11S4OanCzFqZzhYZqdM7QwCA7GQg= =DtrA -----END PGP SIGNATURE----- --Sjl3hp1gsVaqg11H--