** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu)
Status: Incomplete => Triaged
** Also affects: linux (Ubuntu Bionic)
Importance: Medium
Status: Triaged
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https://bugs.launchpad.net/bugs/1765761
Title:
Missing documentation for lockdown
Status in linux package in Ubuntu:
Triaged
Status in linux source package in Bionic:
Triaged
Bug description:
When attempting to load unsigned modules and the signatures are
enforced, a message shows in dmesg pointing to an inexistant manpage:
[...]
[ 5.154346] Adding 1003516k swap on /dev/mapper/10--3--99--105--vg-swap_1.
Priority:-2 extents:1 across:1003516k FS
[ 5.277619] new mount options do not match the existing superblock, will
be ignored
[ 95.502081] random: crng init done
[ 110.298603] PKCS#7 signature not signed with a trusted key
[ 110.298628] Lockdown: Loading of unsigned modules is restricted; see man
kernel_lockdown.7
ubuntu@sacred-civet:~$ man kernel_lockdown.7
man: can't set the locale; make sure $LC_* and $LANG are correct
No manual entry for kernel_lockdown.7
ubuntu@sacred-civet:~$ man 7 kernel_lockdown
man: can't set the locale; make sure $LC_* and $LANG are correct
No manual entry for kernel_lockdown in section 7
ubuntu@sacred-civet:~$ man kernel_lockdown
man: can't set the locale; make sure $LC_* and $LANG are correct
No manual entry for kernel_lockdown
ubuntu@sacred-civet:~$
ubuntu@sacred-civet:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu Bionic Beaver (development branch)
Release: 18.04
Codename: bionic
ubuntu@sacred-civet:~$ cat /proc/version_signature
Ubuntu 4.15.0-13.14-generic 4.15.10
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