netdev - [PATCH] net: ipv6: add missing lock in ping_v6

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Date:	Thu,  4 Jul 2013 00:52:49 +0900
From:	Lorenzo Colitti <lorenzo@...gle.com>
To:	netdev@...r.kernel.org
Cc:	David Miller <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>, lorenzo@...gle.com
Subject: [PATCH] net: ipv6: add missing lock in ping_v6_sendmsg

Signed-off-by: Lorenzo Colitti <lorenzo@...gle.com>
---
 net/ipv6/ping.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/ipv6/ping.c b/net/ipv6/ping.c
index 2b52046..10b9755 100644
--- a/net/ipv6/ping.c
+++ b/net/ipv6/ping.c
@@ -174,6 +174,7 @@ int ping_v6_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 	if (hlimit < 0)
 		hlimit = ip6_dst_hoplimit(dst);
 
+	lock_sock(sk);
 	err = ip6_append_data(sk, ping_getfrag, &pfh, len,
 			      0, hlimit,
 			      np->tclass, NULL, &fl6, rt,
@@ -188,6 +189,7 @@ int ping_v6_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 						 (struct icmp6hdr *) &pfh.icmph,
 						 len);
 	}
+	release_sock(sk);
 
 	return err;
 }
-- 
1.8.3

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