netdev - Re: [PATCH] net/ipv6: Fix CALIPSO causing GPF with datagram support

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Message-ID: <20170605172028.GA2513@merlot.physics.ox.ac.uk>
Date:   Mon, 5 Jun 2017 18:20:28 +0100
From:   Huw Davies <huw@...eweavers.com>
To:     Paul Moore <paul@...l-moore.com>
Cc:     Richard Haines <richard_c_haines@...nternet.com>,
        netdev@...r.kernel.org, linux-security-module@...r.kernel.org,
        selinux@...ho.nsa.gov
Subject: Re: [PATCH] net/ipv6: Fix CALIPSO causing GPF with datagram support

On Mon, Jun 05, 2017 at 11:55:34AM -0400, Paul Moore wrote:
> On Mon, Jun 5, 2017 at 11:44 AM, Richard Haines
> <richard_c_haines@...nternet.com> wrote:
> > When using CALIPSO with IPPROTO_UDP it is possible to trigger a GPF as the
> > IP header may have moved.
> >
> > Also update the payload length after adding the CALIPSO option.
> >
> > Signed-off-by: Richard Haines <richard_c_haines@...nternet.com>
> > ---
> >  net/ipv6/calipso.c | 6 +++++-
> >  1 file changed, 5 insertions(+), 1 deletion(-)
> 
> Acked-by: Paul Moore <paul@...l-moore.com>

Signed-off-by: Huw Davies <huw@...eweavers.com>