Created attachment 944937 [details]
actual results

Description of problem:


Hello,

I just cleaned my keyboard with locked screen and figured out that I've created 50 MB of screenshots.

I don't want to call it a security issue, but if unauthorized person can consume "unlimited" space on /home or in border case /root (which is usually the same filesystem as /) on a "secured" machine and skip any authentication, then it's a kind of a DOS attack.

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1. have standard gnome3 installation
2. lock your screen
3. hold or tap printscreen key

Actual results:

screenshots are taken and stored in ~/Pictures

Expected results:

nobody should be able to generate such data on a locked machine.

Additional info:

if there is some "DOS" tracker bug for gnome-shell/lock-screen then please add  Bug 1013299 there as well. It could be nice knowledge base for office surprises.