[BUG] Killing Linux with memory mapping

Thierry vignaud (tvignaud@mandrakesoft.com)
Thu, 10 Jun 1999 21:02:04 +0200

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Hi.
My brother has just discover a way to kill a linux box :
* lauch an X11 app that use the DGA extension to take control of the
video frame buffer.
* switch to a console before the application take control of the screen
* and see linux reboot instantly (in fact when the program access to the
mapped buffer)

The application may write in a buffer that don't exist.

Contact Sylvain Vignaud <VIGNAUD.Sylvain@eulersff.com> to further
information.

Maybe the problem can be avoided if the console is the fbcon.

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