| Date | Mon, 13 Jan 2014 16:24:02 +0000 | From | Luis Henriques <> | Subject | Re: [PATCH 3.11 180/208] ip_gre: fix msg_name parsing for recvfrom/recvmsg |
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(adding back missing CC:)
On Mon, Jan 13, 2014 at 06:10:22PM +0200, Timo Teras wrote: > On Mon, 13 Jan 2014 16:00:21 +0000 > Luis Henriques <luis.henriques@canonical.com> wrote: > > > 3.11.10.3 -stable review patch. If anyone has any objections, please > > let me know. > > Does it build? Seems you have missed the hunk to the headers that > implement skb_pop_mac_header().
Well, it does build because patch:
[PATCH 3.11 178/208] ipv6: fix illegal mac_header comparison on 32bit
actually added that hunk. This is a fix that is stable-specific (not in mainline). Also, I've used David's stable patches for 3.10 as a base for this patch.
Maybe this was a mistake as skb_pop_mac_header() doesn't seem to be required by patch 178 in this serie...?
Cheers, -- Luis
> > > > ------------------ > > > > From: =?UTF-8?q?Timo=20Ter=C3=A4s?= <timo.teras@iki.fi> > > > > commit 0e3da5bb8da45890b1dc413404e0f978ab71173e upstream. > > > > ipgre_header_parse() needs to parse the tunnel's ip header and it > > uses mac_header to locate the iphdr. This got broken when gre > > tunneling was refactored as mac_header is no longer updated to point > > to iphdr. Introduce skb_pop_mac_header() helper to do the mac_header > > assignment and use it in ipgre_rcv() to fix msg_name parsing. > > > > Bug introduced in commit c54419321455 (GRE: Refactor GRE tunneling > > code.) > > > > Cc: Pravin B Shelar <pshelar@nicira.com> > > Signed-off-by: Timo Teräs <timo.teras@iki.fi> > > Signed-off-by: David S. Miller <davem@davemloft.net> > > Signed-off-by: Luis Henriques <luis.henriques@canonical.com> > > --- > > net/ipv4/ip_gre.c | 1 + > > 1 file changed, 1 insertion(+) > > > > diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c > > index 8d6939e..2977400 100644 > > --- a/net/ipv4/ip_gre.c > > +++ b/net/ipv4/ip_gre.c > > @@ -217,6 +217,7 @@ static int ipgre_rcv(struct sk_buff *skb, const > > struct tnl_ptk_info *tpi) iph->saddr, iph->daddr, tpi->key); > > > > if (tunnel) { > > + skb_pop_mac_header(skb); > > ip_tunnel_rcv(tunnel, skb, tpi, log_ecn_error); > > return PACKET_RCVD; > > } > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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