Messages in this thread | | | Date | Fri, 30 May 1997 15:29:05 -0400 (EDT) | From | "Daniel G. Linder" <> | Subject | Re: linux-kernel-digest V1 #922 |
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>From: "Richard B. Johnson" <root@analogic.com> >Date: Thu, 29 May 1997 20:15:59 -0400 (EDT) >Subject: 2.1.41 <not SMP> > >A kernel crash, "Unable to handle NULL Pointer dereference at 000000"... >will be caused by:: > ># od -x /dev/kmem > >I used to be able to __READ__ page zero. I think you can't do that anymore. >If so, /dev/kmem should not access the restricted page. Users can crash >the machine with simple commands. > >Cheers, > Dick
Not a big point, but your command shows a "#" implying root did this. Can a normal user cause a crash, also? I'm going to try this on my 2.1.40 box after sending this letter.
Dan -- Daniel Linder W:(402) 393-3997 C:(402) 490-1673 P:(402) 579-1615 National / TechTeam WebCentric www.webcentric.net / www.techteam.com
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