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[net-next,1/3] ipv4: warn once on passing AF_INET6 socket to ip_recv_error

Message ID 1417404155-28607-2-git-send-email-willemb@google.com
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Willem de Bruijn Dec. 1, 2014, 3:22 a.m. UTC 
From: Willem de Bruijn <willemb@google.com>

One line change, in response to catching an occurrence of this bug.
See also fix f4713a3dfad0 ("net-timestamp: make tcp_recvmsg call ...")

Signed-off-by: Willem de Bruijn <willemb@google.com>
---
 net/ipv4/ip_sockglue.c | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index b782657..59eba6c 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -414,6 +414,8 @@  int ip_recv_error(struct sock *sk, struct msghdr *msg, int len, int *addr_len)
 	int err;
 	int copied;
 
+	WARN_ON_ONCE(sk->sk_family == AF_INET6);
+
 	err = -EAGAIN;
 	skb = sock_dequeue_err_skb(sk);
 	if (skb == NULL)