From: Tom Herbert <therbert@google.com>
Date: Mon, 5 May 2014 23:43:58 +0000 (-0700)
Subject: ipv6: Need to sock_put on csum error
X-Git-Tag: v3.16-rc1~27^2~274
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=79e0f1c9f2c7096e93879d4158f2d34142b693dd;p=linux.git

ipv6: Need to sock_put on csum error

Commit 4068579e1e098fa81d48db9ba4432ab664c58561 ("net: Implmement
RFC 6936 (zero RX csums for UDP/IPv6)") introduced zero checksums
being allowed for IPv6, but in the case that a socket disallows a
zero checksum on RX we need to sock_put.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 4fcd9bca950e..fc2be63e32d5 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -884,6 +884,7 @@ int __udp6_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
 		int ret;
 
 		if (!uh->check && !sk->sk_no_check) {
+			sock_put(sk);
 			udp6_csum_zero_error(skb);
 			goto csum_error;
 		}