Date: Fri, 28 Nov 1997 21:45:58 +0100 (CET) From: Martin Kammerhofer <dada@sbox.tu-graz.ac.at> To: FreeBSD-gnats-submit@FreeBSD.ORG Subject: i386/5174: kbdcontrol(1) can easily crash system Message-ID: <199711282045.VAA01783@lend.tu-graz.ac.at> Resent-Message-ID: <199711291000.CAA21451@hub.freebsd.org>
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>Number: 5174 >Category: i386 >Synopsis: kbdcontrol(1) can easily crash system >Confidential: yes >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sat Nov 29 02:00:00 PST 1997 >Last-Modified: >Originator: Martin Kammerhofer >Organization: Graz University of Technology >Release: FreeBSD 2.2-STABLE i386 >Environment: syscons driver configured in kernel (as usual) >Description: Setting history buffer size to an unusual large number reboots the system. Impact: Anyone with access to a /dev/ttyv? can crash the system. Fortunately this (usually) requires physical access to the console where you could press the big red button as well... >How-To-Repeat: kbdcontrol -h 300000 </dev/ttyv0 >Fix: Add parameter checking to /usr/sbin/kbdcontrol. >Audit-Trail: >Unformatted:
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