From nobody Fri Jun 10 17:26:26 2022 X-Original-To: bugs@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 76299835221 for ; Fri, 10 Jun 2022 17:26:26 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (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-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4LKSYZ1ZjDz4fly for ; Fri, 10 Jun 2022 17:26:26 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (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 mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 136C61CD8C for ; Fri, 10 Jun 2022 17:26:26 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 25AHQQd6056439 for ; Fri, 10 Jun 2022 17:26:26 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 25AHQQBw056438 for bugs@FreeBSD.org; Fri, 10 Jun 2022 17:26:26 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 264600] sshd: Fssh_kex_exchange_identification: Connection closed by remote host errors Date: Fri, 10 Jun 2022 17:26:26 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bin X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: jlduran@gmail.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Bug reports List-Archive: https://lists.freebsd.org/archives/freebsd-bugs List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-bugs@freebsd.org MIME-Version: 1.0 ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1654881986; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=P2lRSKJFHyqh8wCyvPtHtsTWt6ExcYp5HS2kWGmdoTg=; b=q6dA1KK5QBmhjHZl+MqwJhOL7k3LryUCb+QxLCsZXdlMVnKTb8zPH9g+cC6tWBXS6Mjuz6 TFhiMnDAhfD+IoIgM1hoeMy6CNc4K4DCKrxyFbzqellYjzJEBhAkmVs/04/uWEDd/dA8jz rARRJQstqM+8BGFr7rkfiIVYRcUR75rxRp/ptBMRz3+hUCXUNUUKWCgcRQfwiu6I63OGfq gfWGWH3Gx51VvP2jV2mYvyL1C0BI45NLWURSOLNtr9cCMcHDW/x/dp5qTjK4KZ9IlPHwHM zT5i5Bpbep1fuNNRxfSvMr6ZM1KecNP+cEalrtC+OZJ8FnJvgIhIGFNGio2UbQ== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1654881986; a=rsa-sha256; cv=none; b=gW8vhBXcxOPyvY5pDycE0Wv7YExp4RJO8ddwXbPvcPYOblLUW2OsNgPNsE6U9JnBdaUhaC /Zy48hNNN+o+kD0JtXYGJQJNrzI/OOGUudUn8xdV0BjtvqbzDyyeedT/YD/eOspXrEQgdw MYM95tAVKz2XieGwSG3ju44UuoB9ieSOx9hGN4eDm47FhMhuPMB3mrk3+k7HBU2zShl/VR 1xjs2UX5bt4SQ67UuO06/NP4MRPYhwafnMa/bBPijIcFxKylnTuh//YCpQmYwKn5a15I2C /Ly69YfxO2/69aLF7WqcJt2+DOl5xTuxTUL38LaU5LuNJoXIchSCH+/IHwcHsw== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D264600 Bug ID: 264600 Summary: sshd: Fssh_kex_exchange_identification: Connection closed by remote host errors Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: bin Assignee: bugs@FreeBSD.org Reporter: jlduran@gmail.com After upgrading a public-facing SSH server to OpenSSH 8.8 (13.1-RELEASE), it has started spamming dmesg logs with: error: Fssh_kex_exchange_identification: Connection closed by remote ho= st To replicate it, just `nc ssh-server 22`. Per conversation with @emaste, opening this PR to track it. --=20 You are receiving this mail because: You are the assignee for the bug.=