#1135951 linux-image-6.12.85+deb13-amd64: secure data is visible when waking from suspsend

Package:
src:linux
Source:
src:linux
Submitter:
Daniel Convissor
Date:
2026-05-13 17:57:05 UTC
Severity:
normal
Tags:
#1135951#5
Date:
2026-05-07 15:44:00 UTC
From:
To:
Dear Maintainer,

The following issue arose since upgrading to Debian 13 from 11...

Have a laptop with the lid closed, in suspend/sleep mode. Upon opening the lid,
sometimes the contents of the desktop flash on the screen for a second, then
the screen locks. This can reveal secure information to attackers.

I recorded a video of it happening. Note the lid LED blinking prior to opening
the lid, which indicates the laptop is in suspend/sleep mode.
https://www.analysisandsolutions.com/int/debian-13-laptop-wake-reveals-
desktop.mp4

Thank you.
#1135951#10
Date:
2026-05-07 19:05:21 UTC
From:
To:
Control: tag -1 moreinfo

Is this on GNOME (I think that's what I see in the video) or some other
desktop environment?

Ben.
#1135951#17
Date:
2026-05-07 19:21:37 UTC
From:
To:
Hi Ben:

Yes, GNOME desktop.  Should I file the bug there instead?

Thank you,
#1135951#24
Date:
2026-05-10 18:04:25 UTC
From:
To:
Hi,

Maybe this then is rather an issue in src:gdm3, but not completely
sure so will leave this to Ben for further looking.

Regards,
Salvatore
#1135951#29
Date:
2026-05-13 17:54:01 UTC
From:
To:
Control: reassign -1 gnome-shell

There is no need to open a new report; I am reassigning this one.

Ben.