From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Sat, 11 Jun 2016 18:32:06 +0000 (+0200)
Subject: ipv6: fix endianness error in icmpv6_err
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=2a6558eab644e3b0924935bd2b34d640580c691e;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

ipv6: fix endianness error in icmpv6_err

IPv6 ping socket error handler doesn't correctly convert the new 32 bit
mtu to host endianness before using.

[Cherry-pick of net dcb94b88c09ce82a80e188d49bcffdc83ba215a6]

Bug: 29370996
Change-Id: Idf475e2555252d91e1d3fa92071a661242780074
Cc: Lorenzo Colitti <lorenzo@google.com>
Fixes: 6d0bfe22611602f ("net: ipv6: Add IPv6 support to the ping socket.")
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index adb715b22f7..b0220040ef2 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -96,7 +96,7 @@ static void icmpv6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 
 	if (!(type & ICMPV6_INFOMSG_MASK))
 		if (icmp6->icmp6_type == ICMPV6_ECHO_REQUEST)
-			ping_err(skb, offset, info);
+			ping_err(skb, offset, ntohl(info));
 }
 
 static int icmpv6_rcv(struct sk_buff *skb);