Package: manpages
Version: 5.13-1
Severity: normal
File: /usr/share/man/man7/kernel_lockdown.7.gz

The kernel_lockdown(7) manpage states:

 • Unencrypted hibernation/suspend to swap are disallowed as the kernel
   image is saved to a medium that can then be accessed.

I have a swap partition in LVM on an encrypted volume, so it could
arguably count as encrypted. However "systemctl hibernate" fails
and places the following line into the system log:

[  727.705737] Lockdown: systemd-logind: hibernation is restricted; see man 
kernel_lockdown.7

It is unclear to me whether I'm seeing false documentation or a bug in
the implementation or my local configuration.

Please clarify the kernel_lockdown(7) manpage with regards to this
relatively common situation of swap on LVM on LUKS.


Best regards.

-- System Information:
Debian Release: bookworm/sid
  APT prefers testing
  APT policy: (500, 'testing'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 5.19.0-2-amd64 (SMP w/12 CPU threads; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), 
LANGUAGE=en_US:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

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