Reproducible SystemSettingsBroker stack overflow error!
Posted: Mon Sep 06, 2021 9:19 am
I have no clue how to report bugs in Windows. Microsoft makes it exceedingly difficult to reach employees who know their stuff. My only hope is to get this post reported/escalated.
Repro steps:
Have a display enhancement - enabled monitor, like a laptop.
sc start DisplayEnhancementService
Click brightness control in action center (notifications button in boom right corner)
Change your brightness.
sc stop DisplayEnhancementService
sc disable DisplayEnhancementService
(both required due to design flaw, disable alone fails to stop it first.)
Change your brightness.
Observe crash in sys UI:
---------------------------
SystemSettingsBroker.exe - System Error
---------------------------
The system detected an overrun of a stack-based buffer in this application. This overrun could potentially allow a malicious user to gain control of this application.
---------------------------
OK
---------------------------
Repro steps:
Have a display enhancement - enabled monitor, like a laptop.
sc start DisplayEnhancementService
Click brightness control in action center (notifications button in boom right corner)
Change your brightness.
sc stop DisplayEnhancementService
sc disable DisplayEnhancementService
(both required due to design flaw, disable alone fails to stop it first.)
Change your brightness.
Observe crash in sys UI:
---------------------------
SystemSettingsBroker.exe - System Error
---------------------------
The system detected an overrun of a stack-based buffer in this application. This overrun could potentially allow a malicious user to gain control of this application.
---------------------------
OK
---------------------------