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From: leong%CMU-ITC-LINUS@PT.CS.CMU.EDU (John Leong)
Newsgroups: mod.protocols.tcp-ip
Subject: nasty little 4.2 bug ??
Message-ID: <8511072232.AA00369@cmu-ws-postoffice>
Date: Thu, 7-Nov-85 17:28:39 EST
Article-I.D.: cmu-ws-p.8511072232.AA00369
Posted: Thu Nov  7 17:28:39 1985
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We have encountered a nasty little UNIX 4.2 bug in the way it processes
IP options. If the option length field is 0, it will loop forever. 

It happened that someone (with a PC) accidentally generated an IP packet
with such incorrect option parameter and it also happened that the packet
was sent as an IP broadcast .... quite spectacularly, all our 30 odd
SUN's and miscellaneous 4.2 machines died instantly ......

Is that a known bug and will that be fixed in 4.3 ????

John Leong@*
leong%cmu-itc-linus@@cmu-cs-h