linuxmint / linuxmint/cinnamon
[SECURITY] screensaver (lockscreen) leak actual state
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- Dominant language
- JavaScript
- Stars
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- Forks
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- Merged PRs (30d)
- 3
Description
* Cinnamon version 3.8.8
* Distribution Debian 10 Buster
* Graphics hardware *and* driver used :
lspci -nnk | grep -i vga -A3
00:02.0 VGA compatible controller [0300]: Intel Corporation UHD Graphics 620 [8086:5917] (rev 07)
Subsystem: Dell UHD Graphics 620 [1028:081c]
Kernel driver in use: i915
Kernel modules: i915
* 64 bit
Issue
The lock-screen can be partly bypass by adding a screen (HDMI and DVI tested).
Screen content behind lock-screen is displayed and mouse is partly usable.
Sometimes only the background is displayed, other times it's all actual work... I don't know why...
Nothing change visually wen typing but keyboad is always focused on password field and it's possible to login.
Steps to reproduce
- Lock your screen
- Add a display device
- enjoy
Expected behaviour
lock-screen just lock the screen
Other information
Please forgive my poor English :'(
Contributor guide
No contributing guide indexed for this repository
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the lock-screen behavior with an external display connected after locking, then trace the lock-screen and display-handling entry points involved. Compare what appears on the added screen and whether the password field still accepts input. Done means adding a display while locked never reveals the desktop or permits interaction before authentication.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- javascript
- Domain
- desktop, security
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100