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Date: Thu, 19 Aug 2010 16:40:04 GMT
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To: freebsd-bugs@FreeBSD.org
From: Maxim Konovalov <maxim.konovalov@gmail.com>
Cc: 
Subject: Re: kern/149807: [patch] [ipfw] panic due to bpf write to ipfw
 interface
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The following reply was made to PR kern/149807; it has been noted by GNATS.

From: Maxim Konovalov <maxim.konovalov@gmail.com>
To: Dmitrij Tejblum <tejblum@yandex-team.ru>
Cc: bug-followup@freebsd.org
Subject: Re: kern/149807: [patch] [ipfw] panic due to bpf write to ipfw
 interface
Date: Thu, 19 Aug 2010 20:39:42 +0400 (MSD)

 > ipfw create a pseudo-interface named ipfw0. It looks pretty much
 > like an ethernet interface. If a program attach a bpf to the
 > interface and send a multicast packet via it, a panic will occur.
 >
 > (Of course, sending packets to the ipfw0 interface is not useful.
 > But some programs may do it. E.g., an CDP or LLDP daemon by default
 > would try to send its packets to all interfaces in the systems,
 > including ipfw0, if it's configured.)
 >
 This remembers me kern/149097.  Sounds similar?
 
 -- 
 Maxim Konovalov