This is a note to let you know that I've just added the patch titled
ip_gre: fix msg_name parsing for recvfrom/recvmsg
to the 3.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ip_gre-fix-msg_name-parsing-for-recvfrom-recvmsg.patch
and it can be found in the queue-3.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Mon Jan 13 09:39:01 PST 2014
From: =?UTF-8?q?Timo=20Ter=C3=A4s?= <timo.teras@xxxxxx>
Date: Mon, 16 Dec 2013 11:02:09 +0200
Subject: ip_gre: fix msg_name parsing for recvfrom/recvmsg
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
From: Timo Teräs <timo.teras@xxxxxx>
[ Upstream commit 0e3da5bb8da45890b1dc413404e0f978ab71173e ]
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was refactored as mac_header is no longer updated to point to iphdr.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@xxxxxxxxxx>
Signed-off-by: Timo Teräs <timo.teras@xxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/ipv4/ip_gre.c | 1 +
1 file changed, 1 insertion(+)
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -335,6 +335,7 @@ static int ipgre_rcv(struct sk_buff *skb
iph->saddr, iph->daddr, tpi.key);
if (tunnel) {
+ skb_pop_mac_header(skb);
ip_tunnel_rcv(tunnel, skb, &tpi, hdr_len, log_ecn_error);
return 0;
}
Patches currently in stable-queue which might be from timo.teras@xxxxxx are
queue-3.10/ip_gre-fix-msg_name-parsing-for-recvfrom-recvmsg.patch
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