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Re: kernel/1816: Repetable crashes of ipfilter code

To: bugs@openbsd.org
Subject: Re: kernel/1816: Repetable crashes of ipfilter code
From: Przemyslaw Frasunek <venglin@freebsd.lublin.pl>
Date: Tue, 8 May 2001 08:26:24 +0200
Content-Disposition: inline
References: <20010508055434.20532.qmail@komnata.komnata.pl>
User-Agent: Mutt/1.2.5i

On Tue, May 08, 2001 at 05:54:34AM -0000, venglin@freebsd.lublin.pl wrote:
> 	Sending ICMP ECHO with record route, directed to OpenBSD box
> 	with ipfilter enabled, causes 'panic: in_cksum: mp == NULL'.

I've noticed, that crash occurs only when record route packet is triggered
by rule containing return-icmp keyword. A simple workaround is to remove
return-icmp from rules which could match against ICMP packet.

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Follow-Ups:
- Re: kernel/1816: Repetable crashes of ipfilter code
  - From: Camiel Dobbelaar <dobbe@xs4all.nl>
- Re: kernel/1816: Repetable crashes of ipfilter code
  - From: Camiel Dobbelaar <dobbe@xs4all.nl>

References:
- kernel/1816: Repetable crashes of ipfilter code
  - From: venglin@freebsd.lublin.pl

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