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Date:      Wed, 29 Aug 2007 08:24:58 +0100
From:      "Bruce M. Simpson" <bms@FreeBSD.org>
To:        "Christian S.J. Peron" <csjp@FreeBSD.org>
Cc:        freebsd-net@freebsd.org
Subject:   Re: [csjp@FreeBSD.org: Re: rtfree: 0xffffff00036fb1e0 has 1 refs]
Message-ID:  <46D51F4A.1050004@FreeBSD.org>
In-Reply-To: <46D48A3D.6080901@FreeBSD.org>
References:  <20070828165333.GA14159@sub.vaned.net> <46D48A3D.6080901@FreeBSD.org>

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BTW: Casual inspection with kscope suggests there is a similar=20
free-while-locked issue in nd6_ns_input() (netient6/nd6_nbr.c) and=20
in_arpinput() (netinet/if_ether.c).

nd6_ns_input() references rt-=BBrt_gateway after rtfree(), a potential=20
race not to mention a use-after-free.

I haven't checked Coverity for this, but it just doesn't look right.

BMS




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