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authorDavid S. Miller <davem@davemloft.net>2017-02-16 19:34:01 -0500
committerDavid S. Miller <davem@davemloft.net>2017-02-16 19:34:01 -0500
commit3f64116a838e6c3468f9d5eed7f1f87cf3a2c3eb (patch)
tree388024d2ddbdcb9991ef4b472dfac31e425b807e /net/ipv6/udp.c
parentf3caf8618bce7e86c6f4f86785dd004c71b63a2d (diff)
parent4695daefba8df8a11fa0b0edd595eedae9ea59ae (diff)
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'net/ipv6/udp.c')
-rw-r--r--net/ipv6/udp.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index df71ba05f41d..4e4c401e3bc6 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -1046,6 +1046,10 @@ int udpv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
if (addr_len < SIN6_LEN_RFC2133)
return -EINVAL;
daddr = &sin6->sin6_addr;
+ if (ipv6_addr_any(daddr) &&
+ ipv6_addr_v4mapped(&np->saddr))
+ ipv6_addr_set_v4mapped(htonl(INADDR_LOOPBACK),
+ daddr);
break;
case AF_INET:
goto do_udp_sendmsg;