Bugtraq mailing list archives
/dev/tcx0 crashes SunOS 4.1.4 on Sparc 20's
From: dly () BAYNETWORKS COM (Dixon Ly)
Date: Mon, 19 May 1997 19:29:20 -0700
A while ago, I asked on Sun Managers group who I should tell about a crash bug I found on Sparc 20's running SunOS 4.1.4. The general consensus was not to tell anyone except maybe send a message to CERT. So I did. Since then more people have suggested that I should send it to Bugtraqs as well....so while I still have messages sprouting from my previous email address reminding me this, let me post it before I cut everything off: If you try to read /dev/tcx0 on a SunOS 4.1.4 Sparc 20 (it didn't work on a 10; didn't have access to a Sparc 5, so I couldn't check that), you will cause a system panic. How do you read it, you ask? Simply "cat /dev/tcx0" or "ls /dev/tcx0/*". You don't need special privileges to use it. Now, I have never own'ed a tcx frame buffer. These only exist on Sparc 5 right? So I don't know what will happen if you do have a tcx device. If you don't, then the simplest fix is to just remove the darn entry under /dev. -d -- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Dixon Ly -- Release Test Engineering -- Bay Networks, Inc. dly () BayNetworks com (408) 495-1396 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Current thread:
- Re: SunOS exploit. Jeff Uphoff (May 19)
- Re: SunOS exploit. Trevor Linton (May 18)
- /dev/tcx0 crashes SunOS 4.1.4 on Sparc 20's Dixon Ly (May 19)
- Re: /dev/tcx0 crashes SunOS 4.1.4 on Sparc 20's Fabrice Planchon (May 20)
- Fun with devices [was: Re: /dev/tcx0 crashes SunOS 4.1.4 on Sparc Walter Hafner (May 21)
- write(1) test (May 21)
- Re: write(1) Jauder Ho (May 22)
- Re: Fun with devices [was: Re: /dev/tcx0 crashes SunOS 4.1.4 on Mike Scher (May 21)
- Re: Fun with devices [was: Re: /dev/tcx0 crashes SunOS 4.1.4 on Doug Hughes (May 22)
- /dev/tcx0 crashes SunOS 4.1.4 on Sparc 20's Dixon Ly (May 19)
- Re: SunOS exploit. Trevor Linton (May 18)
- Re: SunOS exploit. & DigitalUnix Joe Zbiciak (May 20)