Date: Wed, 27 May 1998 11:30:13 -0500 From: Jonathan Lemon <jlemon@americantv.com> To: Brian Feldman <brianfeldman@hotmail.com> Cc: freebsd-current@FreeBSD.ORG Subject: Re: current instabilities Message-ID: <19980527113013.57367@right.PCS> In-Reply-To: <19980527032329.16263.qmail@m2.findmail.com>; from Brian Feldman on May 05, 1998 at 03:23:29AM -0000 References: <19980527032329.16263.qmail@m2.findmail.com>
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On May 05, 1998 at 03:23:29AM -0000, Brian Feldman wrote: > 2) "options VM86" - EVIL EVIL EVIL! This really allows way too much > access to the memory by a mortal, and it's an effective DoS attack if a > user runs doscmd, say, and a certain executable (this time, I happened > to try ZSnes). Think there may be a way to make this safer? (I locked > myself up, and it didn't panic so I don't know what exact function > caused it). Also, could USER_LDT possibly be used as a DoS attack, like > it seems to me it could? Uh. I've tried really hard to make sure that VM86 won't lock the system up. Are you sure that it is VM86, and not USER_LDT? If there is something in doscmd that can freeze the system, I'd like to know about it so I can get it fixed. :-) -- Jonathan To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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