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Date:      Wed, 11 Jun 2003 23:35:36 -0700
From:      Kris Kennaway <kris@obsecurity.org>
To:        Kris Kennaway <kris@obsecurity.org>
Cc:        current@freebsd.org
Subject:   Re: adsl/pppoe no longer connecting on 5.1
Message-ID:  <20030612063536.GA38014@rot13.obsecurity.org>
In-Reply-To: <20030612060557.GA37441@rot13.obsecurity.org>
References:  <200306112248.AA655556764@141.com> <20030612045022.GA36033@rot13.obsecurity.org> <20030612051812.GQ48387@mail.evip.pl> <20030612060557.GA37441@rot13.obsecurity.org>

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On Wed, Jun 11, 2003 at 11:05:57PM -0700, Kris Kennaway wrote:

> It looks like gcc's inline alloca implementation allocates chunks in
> larger chunks than the alloca.S implementation does.  This (untested)
> patch should make the alloca.S behaviour match that of gcc.

I suspect that there's a buffer overrun in one of the alloca() buffers
in ppp, that is harmless with gcc's inline version because of the
extra padding.  I haven't spotted it yet though.

Kris

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