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Type: Bug
Resolution: Duplicate
Priority: Normal
Fix Version/s: None
Affects Version/s: rhel-9.4
Component/s: rhel-bootc-container
Labels:
None

Regression:
No
Severity:
None

Pool Team:

rhel-sst-bootc

Story Points:
None
Blocked:
False
Blocked Reason:

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Product Documentation Required:
None
Sprint:
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Preliminary Testing:
None
Test Coverage:
None

Experience:

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Planning:
None

What were you trying to do that didn't work?

I was switching a RHEL for Edge system to use a bootable container image (i.e. Bifrost/image mode for RHEL) and when it rebooted into the new container image, sshd failed to start due to host key permissions.

What is the impact of this issue to you?

This prevents users from migrating from an ostree commit based RHEL for Edge model to the image mode for RHEL model.

Please provide the package NVR for which the bug is seen:

openssh-server-8.7p1-38.el9_4.4.x86_64

How reproducible is this bug?:

Always

Steps to reproduce

Create a blueprint that includes the bootc RPM
Use osbuild to produce an edge-commit and edge-installer artifact
Deploy the edge-commit (via edge-installer) to a system/VM
Create a Containerfile that includes packages found in RHEL for Edge (https://gitlab.cee.redhat.com/miabbott/rhel-for-edge-bootc-spike/-/blob/main/Containerfile?ref_type=heads)
Build the container image and push to a registry
Use `bootc switch` to switch to the container image
Reboot

Expected results

System boots normally; sshd starts successfully

Actual results

$ systemctl status sshd.service --no-pager
● sshd.service - OpenSSH server daemon
     Loaded: loaded (/usr/lib/systemd/system/sshd.service; enabled; preset: enabled)
     Active: activating (auto-restart) (Result: exit-code) since Thu 2024-09-12 21:51:04 UTC; 33s ago
       Docs: man:sshd(8)
             man:sshd_config(5)
    Process: 857 ExecStart=/usr/sbin/sshd -D $OPTIONS (code=exited, status=1/FAILURE)
   Main PID: 857 (code=exited, status=1/FAILURE)
        CPU: 16ms
[core@localhost ~]$ sudo journalctl -b -u sshd --no-pager
Sep 12 21:51:04 localhost.localdomain systemd[1]: Starting OpenSSH server daemon...
Sep 12 21:51:04 localhost.localdomain sshd[857]: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Sep 12 21:51:04 localhost.localdomain sshd[857]: @         WARNING: UNPROTECTED PRIVATE KEY FILE!          @
Sep 12 21:51:04 localhost.localdomain sshd[857]: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Sep 12 21:51:04 localhost.localdomain sshd[857]: Permissions 0640 for '/etc/ssh/ssh_host_rsa_key' are too open.
Sep 12 21:51:04 localhost.localdomain sshd[857]: It is required that your private key files are NOT accessible by others.
Sep 12 21:51:04 localhost.localdomain sshd[857]: This private key will be ignored.
Sep 12 21:51:04 localhost.localdomain sshd[857]: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Sep 12 21:51:04 localhost.localdomain sshd[857]: @         WARNING: UNPROTECTED PRIVATE KEY FILE!          @
Sep 12 21:51:04 localhost.localdomain sshd[857]: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Sep 12 21:51:04 localhost.localdomain sshd[857]: Permissions 0640 for '/etc/ssh/ssh_host_ecdsa_key' are too open.
Sep 12 21:51:04 localhost.localdomain sshd[857]: It is required that your private key files are NOT accessible by others.
Sep 12 21:51:04 localhost.localdomain sshd[857]: This private key will be ignored.
Sep 12 21:51:04 localhost.localdomain sshd[857]: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Sep 12 21:51:04 localhost.localdomain sshd[857]: @         WARNING: UNPROTECTED PRIVATE KEY FILE!          @
Sep 12 21:51:04 localhost.localdomain sshd[857]: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Sep 12 21:51:04 localhost.localdomain sshd[857]: Permissions 0640 for '/etc/ssh/ssh_host_ed25519_key' are too open.
Sep 12 21:51:04 localhost.localdomain sshd[857]: It is required that your private key files are NOT accessible by others.
Sep 12 21:51:04 localhost.localdomain sshd[857]: This private key will be ignored.
Sep 12 21:51:04 localhost.localdomain sshd[857]: sshd: no hostkeys available -- exiting.
Sep 12 21:51:04 localhost.localdomain systemd[1]: sshd.service: Main process exited, code=exited, status=1/FAILURE
Sep 12 21:51:04 localhost.localdomain systemd[1]: sshd.service: Failed with result 'exit-code'.
Sep 12 21:51:04 localhost.localdomain systemd[1]: Failed to start OpenSSH server daemon.
Sep 12 21:51:47 localhost.localdomain systemd[1]: sshd.service: Scheduled restart job, restart counter is at 1.
Sep 12 21:51:47 localhost.localdomain systemd[1]: Stopped OpenSSH server daemon.
Sep 12 21:51:47 localhost.localdomain systemd[1]: Starting OpenSSH server daemon...
Sep 12 21:51:47 localhost.localdomain sshd[4571]: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Sep 12 21:51:47 localhost.localdomain sshd[4571]: @         WARNING: UNPROTECTED PRIVATE KEY FILE!          @
Sep 12 21:51:47 localhost.localdomain sshd[4571]: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Sep 12 21:51:47 localhost.localdomain sshd[4571]: Permissions 0640 for '/etc/ssh/ssh_host_rsa_key' are too open.
Sep 12 21:51:47 localhost.localdomain sshd[4571]: It is required that your private key files are NOT accessible by others.
Sep 12 21:51:47 localhost.localdomain sshd[4571]: This private key will be ignored.
Sep 12 21:51:47 localhost.localdomain sshd[4571]: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Sep 12 21:51:47 localhost.localdomain sshd[4571]: @         WARNING: UNPROTECTED PRIVATE KEY FILE!          @
Sep 12 21:51:47 localhost.localdomain sshd[4571]: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Sep 12 21:51:47 localhost.localdomain sshd[4571]: Permissions 0640 for '/etc/ssh/ssh_host_ecdsa_key' are too open.
Sep 12 21:51:47 localhost.localdomain sshd[4571]: It is required that your private key files are NOT accessible by others.
Sep 12 21:51:47 localhost.localdomain sshd[4571]: This private key will be ignored.
Sep 12 21:51:47 localhost.localdomain sshd[4571]: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Sep 12 21:51:47 localhost.localdomain sshd[4571]: @         WARNING: UNPROTECTED PRIVATE KEY FILE!          @
Sep 12 21:51:47 localhost.localdomain sshd[4571]: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Sep 12 21:51:47 localhost.localdomain sshd[4571]: Permissions 0640 for '/etc/ssh/ssh_host_ed25519_key' are too open.
Sep 12 21:51:47 localhost.localdomain sshd[4571]: It is required that your private key files are NOT accessible by others.
Sep 12 21:51:47 localhost.localdomain sshd[4571]: This private key will be ignored.
Sep 12 21:51:47 localhost.localdomain sshd[4571]: sshd: no hostkeys available -- exiting.
Sep 12 21:51:47 localhost.localdomain systemd[1]: sshd.service: Main process exited, code=exited, status=1/FAILURE
Sep 12 21:51:47 localhost.localdomain systemd[1]: sshd.service: Failed with result 'exit-code'.
Sep 12 21:51:47 localhost.localdomain systemd[1]: Failed to start OpenSSH server daemon.

Extra Info

This may be related to https://fedoraproject.org/wiki/Changes/SSHKeySignSuidBit

There was a service added to the Fedora openssh-server RPM to handle this change: https://src.fedoraproject.org/rpms/openssh/pull-request/40

But it doesn't seem to be present in the RHEL version of openssh-server

Details

Description

What were you trying to do that didn't work?

What is the impact of this issue to you?

Please provide the package NVR for which the bug is seen:

How reproducible is this bug?:

Steps to reproduce

Expected results

Actual results

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