From: Lorenzo Colitti <lorenzo@google.com>
Date: Wed, 3 Jul 2013 15:52:49 +0000 (+0900)
Subject: net: ipv6: add missing lock in ping_v6_sendmsg
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=a1bdc45580fc19e968b32ad27cd7e476a4aa58f6;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

net: ipv6: add missing lock in ping_v6_sendmsg

Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv6/ping.c b/net/ipv6/ping.c
index 2b52046e1263..10b975577e91 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;
 }