Windows 10 bug

Jan 15, 2021 at 5:25pm
This one is kind of neat, I would love to know how an RO operation "corrupts" something, maybe a file trigger?: https://www.bleepingcomputer.com/news/security/windows-10-bug-corrupts-your-hard-drive-on-seeing-this-files-icon/

Or maybe it borks the file table pointer? I thought it was neat.

EDIT: For anyone who wants to play with it but doesn't have a Hypervisor, Windows Sandbox is a thing.
Last edited on Jan 15, 2021 at 5:36pm
Jan 16, 2021 at 2:56pm
Typical ... put in some special hidden something and someone will find it and cause trouble with it.

There have been so many complete fails like this... at one time there was a hidden cpu instruction and if you called it, the computer froze and needed a boot (early pentium, I think?). Edit: there have been many, many of these, early pentium included.
Last edited on Jan 16, 2021 at 3:01pm
Jan 16, 2021 at 6:57pm
Although it looks like a read-only (RO) operation, it must somehow not be. If the $i30 file contains timestamps for access time then updating the time is a write operation. Is it some kind of strange loop since you're accessing the $i30 file itself?
Jan 16, 2021 at 7:00pm
at one time there was a hidden cpu instruction and if you called it, the computer froze and needed a boot

Maybe the infamous F00F bug:
https://en.wikipedia.org/wiki/Pentium_F00F_bug
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