Description of problem:
If Gnome Software has updates pending, and I reboot from gnome-shell (upper right corner, power button icon, restart) with "Install pending software updates" not checked, an empty file "null" is created in the root directory.
Version-Release number of selected component (if applicable):
device-mapper-1.02.131-3.fc25.x86_64
How reproducible:
Always
Steps to Reproduce:
1. Clean install Fedora 25 and reboot
2. Wait for some updates to appear in gnome-software
3. reboot without installing updates
Actual results:
empty file /null appears; delete the file and restart again from gnome-shell as described and the file reappears
Expected results:
file should not exist
Additional info:
chattr +i on /null and reboot, then use 'journalctl -b-1 | grep null' to see if this file is being touched at restart time, and it is:
Dec 16 10:19:30 localhost.localdomain blkdeactivate[1787]: /usr/sbin/blkdeactivate: line 469: /null: Operation not permitted
Is not reproducible with device-mapper-1.02.136-1.fc25.x86_64... hmm.
Also changing summary because I can reproduce this even without pending updates, just a regular gnome-shell restart is all that was needed to create this null file.