Public bug reported: Can't connect to a local installation of openssh-server.
ssh localhost fails with "Broken pipe", here's the tail of ssh -vv: ... debug1: Enabling compression at level 6. debug1: Authentication succeeded (publickey). Authenticated to localhost ([127.0.0.1]:22). debug1: channel 0: new [client-session] debug2: channel 0: send open debug1: Requesting no-more-sessi...@openssh.com debug1: Entering interactive session. Write failed: Broken pipe Those lines are appearing in auth.log: Sep 26 14:09:10 natali sshd[6076]: Accepted publickey for wiz from 127.0.0.1 port 48624 ssh2 Sep 26 14:09:10 natali sshd[6076]: fatal: privsep_preauth: preauth child terminated by signal 11 Also, any ssh invocation (even -h) ends with "Segmentation fault": usage: ssh [-1246AaCfgKkMNnqsTtVvXxYy] [-b bind_address] [-c cipher_spec] [-D [bind_address:]port] [-e escape_char] [-F configfile] [-I pkcs11] [-i identity_file] [-L [bind_address:]port:host:hostport] [-l login_name] [-m mac_spec] [-O ctl_cmd] [-o option] [-p port] [-R [bind_address:]port:host:hostport] [-S ctl_path] [-W host:port] [-w local_tun[:remote_tun]] [user@]hostname [command] Segmentation fault ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: openssh-server 1:6.0p1-3ubuntu1 ProcVersionSignature: Ubuntu 3.5.0-15.22-generic 3.5.4 Uname: Linux 3.5.0-15-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.5.2-0ubuntu4 Architecture: amd64 Date: Wed Sep 26 14:01:24 2012 InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120724.2) ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SSHDConfig: Error: command ['pkexec', '/usr/sbin/sshd', '-T'] failed with exit code -11: SourcePackage: openssh UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: openssh (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug quantal running-unity -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openssh in Ubuntu. https://bugs.launchpad.net/bugs/1056756 Title: sshd: preauth child terminated by signal 11 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1056756/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs