From: Sylvain Saboua Subject: pledge(2) prevents retrieving got repository using anonymous account ? To: Gameoftrees Cc: Misc Date: Sat, 17 Jan 2026 02:47:28 +0100 I get the following in /var/log/authlog on my server: Jan 17 02:17:16 lap sshd-session[82216]: Accepted none for anonymous from 10.0.0.21 port 57399 ssh2 Jan 17 02:17:16 lap sshd-session[75831]: fatal: bad ownership or modes for chroot directory "/home/git" Yet : $ ls -ld /home/git drwxr-x--- 6 _gotd _gotd 512 Jan 16 23:41 /home/git/ $ grep anonymous /etc/group _gotd:*:501:_gotwebd,sylvain,anonymous anonymous:*:1001: $ grep anonymous /etc/password anonymous::1001:1001:Anonymous:/home/anonymous:/usr/local/bin/gotsh $ grep -v ^# /etc/ssh/sshd_config ListenAddress lap PermitRootLogin no MaxAuthTries 6 MaxSessions 6 PasswordAuthentication no X11Forwarding yes Subsystem sftp internal-sftp Match User anonymous ChrootDirectory /home/git DisableForwarding yes PermitTTY no PasswordAuthentication yes PermitEmptyPasswords yes AuthenticationMethods none retrieval attempt output, I suspect the pledge/repledge (2 lines) just before closing of the connection: $ cd /tmp $ got clone -vvv ssh://anonymous@lap/geomant Connecting to ssh://anonymous@lap/geomant debug1: OpenSSH_10.0p2, LibreSSL 3.3.6 debug3: Running on Darwin 25.2.0 Darwin Kernel Version 25.2.0: Tue Nov 18 21:09:55 PST 2025; root:xnu-12377.61.12~1/RELEASE_ARM64_T8103 arm64 debug3: Started with: /usr/bin/ssh -v -v -v -- anonymous@lap git-upload-pack \\'/geomant\\' debug1: Reading configuration data /Users/sylvansab/.ssh/config debug1: /Users/sylvansab/.ssh/config line 9: Applying options for lap debug1: Reading configuration data /etc/ssh/ssh_config debug1: /etc/ssh/ssh_config line 21: include /etc/ssh/ssh_config.d/* matched no files debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts' -> '/Users/sylvansab/.ssh/known_hosts' debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts2' -> '/Users/sylvansab/.ssh/known_hosts2' debug1: Authenticator provider $SSH_SK_PROVIDER did not resolve; disabling debug3: channel_clear_timeouts: clearing debug1: Connecting to lap port 22. debug1: Connection established. debug1: identity file /Users/sylvansab/.ssh/id_ed25519 type 3 debug1: identity file /Users/sylvansab/.ssh/id_ed25519-cert type -1 debug1: Local version string SSH-2.0-OpenSSH_10.0 debug1: Remote protocol version 2.0, remote software version OpenSSH_10.2 debug1: compat_banner: match: OpenSSH_10.2 pat OpenSSH* compat 0x04000000 debug3: fd 5 is O_NONBLOCK debug1: Authenticating to lap:22 as 'anonymous' debug3: record_hostkey: found key type ED25519 in file /Users/sylvansab/.ssh/known_hosts:5 debug3: load_hostkeys_file: loaded 1 keys from lap debug1: load_hostkeys: fopen /Users/sylvansab/.ssh/known_hosts2: No such file or directory debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts: No such file or directory debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts2: No such file or directory debug3: order_hostkeyalgs: have matching best-preference key type ssh-ed25519-cert-v01@openssh.com, using HostkeyAlgorithms verbatim debug3: send packet: type 20 debug1: SSH2_MSG_KEXINIT sent debug3: receive packet: type 20 debug1: SSH2_MSG_KEXINIT received debug2: local client KEXINIT proposal debug2: KEX algorithms: mlkem768x25519-sha256,sntrup761x25519-sha512,sntrup761x25519-sha512@openssh.com,curve25519-sha256,curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256,ext-info-c,kex-strict-c-v00@openssh.com debug2: host key algorithms: ssh-ed25519-cert-v01@openssh.com,ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,sk-ssh-ed25519-cert-v01@openssh.com,sk-ecdsa-sha2-nistp256-cert-v01@openssh.com,rsa-sha2-512-cert-v01@openssh.com,rsa-sha2-256-cert-v01@openssh.com,ssh-ed25519,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,sk-ssh-ed25519@openssh.com,sk-ecdsa-sha2-nistp256@openssh.com,rsa-sha2-512,rsa-sha2-256 debug2: ciphers ctos: chacha20-poly1305@openssh.com,aes128-gcm@openssh.com,aes256-gcm@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128-gcm@openssh.com,aes256-gcm@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr debug2: MACs ctos: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1 debug2: MACs stoc: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1 debug2: compression ctos: none,zlib@openssh.com debug2: compression stoc: none,zlib@openssh.com debug2: languages ctos: debug2: languages stoc: debug2: first_kex_follows 0 debug2: reserved 0 debug2: peer server KEXINIT proposal debug2: KEX algorithms: mlkem768x25519-sha256,sntrup761x25519-sha512,sntrup761x25519-sha512@openssh.com,curve25519-sha256,curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,ext-info-s,kex-strict-s-v00@openssh.com debug2: host key algorithms: rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256,ssh-ed25519 debug2: ciphers ctos: chacha20-poly1305@openssh.com,aes128-gcm@openssh.com,aes256-gcm@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128-gcm@openssh.com,aes256-gcm@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr debug2: MACs ctos: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1 debug2: MACs stoc: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1 debug2: compression ctos: none,zlib@openssh.com debug2: compression stoc: none,zlib@openssh.com debug2: languages ctos: debug2: languages stoc: debug2: first_kex_follows 0 debug2: reserved 0 debug3: kex_choose_conf: will use strict KEX ordering debug1: kex: algorithm: mlkem768x25519-sha256 debug1: kex: host key algorithm: ssh-ed25519 debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: compression: none debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: compression: none debug3: send packet: type 30 debug1: expecting SSH2_MSG_KEX_ECDH_REPLY debug3: receive packet: type 31 debug1: SSH2_MSG_KEX_ECDH_REPLY received debug1: Server host key: ssh-ed25519 SHA256:KISxYDnYhDdE5furF1w2UZ15rU/LAIGtU0onOGm0HW0 debug3: record_hostkey: found key type ED25519 in file /Users/sylvansab/.ssh/known_hosts:5 debug3: load_hostkeys_file: loaded 1 keys from lap debug1: load_hostkeys: fopen /Users/sylvansab/.ssh/known_hosts2: No such file or directory debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts: No such file or directory debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts2: No such file or directory debug1: Host 'lap' is known and matches the ED25519 host key. debug1: Found key in /Users/sylvansab/.ssh/known_hosts:5 debug3: send packet: type 21 debug1: ssh_packet_send2_wrapped: resetting send seqnr 3 debug2: ssh_set_newkeys: mode 1 debug1: rekey out after 134217728 blocks debug1: SSH2_MSG_NEWKEYS sent debug1: Sending SSH2_MSG_EXT_INFO debug3: send packet: type 7 debug1: expecting SSH2_MSG_NEWKEYS debug3: receive packet: type 21 debug1: ssh_packet_read_poll2: resetting read seqnr 3 debug1: SSH2_MSG_NEWKEYS received debug2: ssh_set_newkeys: mode 0 debug1: rekey in after 134217728 blocks debug2: KEX algorithms: mlkem768x25519-sha256,sntrup761x25519-sha512,sntrup761x25519-sha512@openssh.com,curve25519-sha256,curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256,ext-info-c,kex-strict-c-v00@openssh.com debug2: host key algorithms: ssh-ed25519-cert-v01@openssh.com,ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,sk-ssh-ed25519-cert-v01@openssh.com,sk-ecdsa-sha2-nistp256-cert-v01@openssh.com,rsa-sha2-512-cert-v01@openssh.com,rsa-sha2-256-cert-v01@openssh.com,ssh-ed25519,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,sk-ssh-ed25519@openssh.com,sk-ecdsa-sha2-nistp256@openssh.com,rsa-sha2-512,rsa-sha2-256 debug2: ciphers ctos: chacha20-poly1305@openssh.com,aes128-gcm@openssh.com,aes256-gcm@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128-gcm@openssh.com,aes256-gcm@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr debug2: MACs ctos: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1 debug2: MACs stoc: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1 debug2: compression ctos: none,zlib@openssh.com debug2: compression stoc: none,zlib@openssh.com debug2: languages ctos: debug2: languages stoc: debug2: first_kex_follows 0 debug2: reserved 0 debug3: send packet: type 5 debug3: receive packet: type 7 debug1: SSH2_MSG_EXT_INFO received debug3: kex_input_ext_info: extension server-sig-algs debug1: kex_ext_info_client_parse: server-sig-algs= debug3: kex_input_ext_info: extension publickey-hostbound@openssh.com debug1: kex_ext_info_check_ver: publickey-hostbound@openssh.com=<0> debug3: kex_input_ext_info: extension ping@openssh.com debug1: kex_ext_info_check_ver: ping@openssh.com=<0> debug3: receive packet: type 6 debug2: service_accept: ssh-userauth debug1: SSH2_MSG_SERVICE_ACCEPT received debug3: send packet: type 50 debug3: receive packet: type 7 debug1: SSH2_MSG_EXT_INFO received debug3: kex_input_ext_info: extension server-sig-algs debug1: kex_ext_info_client_parse: server-sig-algs= debug3: receive packet: type 52 Authenticated to lap ([10.0.0.11]:22) using "none". debug2: fd 6 setting O_NONBLOCK debug1: channel 0: new session [client-session] (inactive timeout: 0) debug3: ssh_session2_open: channel_new: 0 debug2: channel 0: send open debug3: send packet: type 90 debug1: Requesting no-more-sessions@openssh.com debug3: send packet: type 80 debug1: Entering interactive session. debug1: pledge: filesystem debug3: client_repledge: enter Connection to lap closed by remote host. debug3: send packet: type 1 debug1: channel 0: free: client-session, nchannels 1 debug3: channel 0: status: The following connections are open: #0 client-session (t3 [session] nr0 nm0 i0/0 o0/0 e[write]/0 fd 6/7/8 sock -1 cc -1 nc0 io 0x00/0x00) Transferred: sent 3072, received 2840 bytes, in 0.0 seconds Bytes per second: sent 254262.5, received 235060.4 debug1: Exit status -1 got-fetch-pack: unexpected end of file got: unexpected end of file $ -- Sylvain Saboua looking for a PDP-11